mirror of https://github.com/python/cpython.git
1159 lines
43 KiB
Python
Executable File
1159 lines
43 KiB
Python
Executable File
#!/usr/bin/env python
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"""Generate Python documentation in HTML or as text for interactive use.
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At the shell command line outside of Python, run "pydoc <name>" to show
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documentation on something. <name> may be the name of a Python function,
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module, package, or a dotted reference to a class or function within a
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module or module in a package. Alternatively, the argument can be the
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path to a Python source file.
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Or, at the shell prompt, run "pydoc -k <keyword>" to search for a keyword
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in the one-line descriptions of modules.
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Or, at the shell prompt, run "pydoc -p <port>" to start an HTTP server
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on a given port on the local machine to generate documentation web pages.
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Or, at the shell prompt, run "pydoc -w <name>" to write out the HTML
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documentation for a module to a file named "<name>.html".
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In the Python interpreter, do "from pydoc import help" to provide online
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help. Calling help(thing) on a Python object documents the object."""
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__author__ = "Ka-Ping Yee <ping@lfw.org>"
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__version__ = "26 February 2001"
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import sys, imp, os, stat, re, types, inspect
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from repr import Repr
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from string import expandtabs, find, join, lower, split, strip, rstrip
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# --------------------------------------------------------- common routines
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def synopsis(filename, cache={}):
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"""Get the one-line summary out of a module file."""
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mtime = os.stat(filename)[stat.ST_MTIME]
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lastupdate, result = cache.get(filename, (0, None))
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if lastupdate < mtime:
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file = open(filename)
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line = file.readline()
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while line[:1] == '#' or strip(line) == '':
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line = file.readline()
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if not line: break
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if line[-2:] == '\\\n':
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line = line[:-2] + file.readline()
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line = strip(line)
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if line[:3] == '"""':
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line = line[3:]
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while strip(line) == '':
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line = file.readline()
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if not line: break
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result = split(line, '"""')[0]
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else: result = None
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file.close()
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cache[filename] = (mtime, result)
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return result
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def index(dir):
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"""Return a list of (module-name, synopsis) pairs for a directory tree."""
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results = []
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for entry in os.listdir(dir):
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path = os.path.join(dir, entry)
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if ispackage(path):
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results.extend(map(
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lambda (m, s), pkg=entry: (pkg + '.' + m, s), index(path)))
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elif os.path.isfile(path) and entry[-3:] == '.py':
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results.append((entry[:-3], synopsis(path)))
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return results
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def pathdirs():
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"""Convert sys.path into a list of absolute, existing, unique paths."""
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dirs = []
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for dir in sys.path:
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dir = os.path.abspath(dir or '.')
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if dir not in dirs and os.path.isdir(dir):
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dirs.append(dir)
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return dirs
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def getdoc(object):
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"""Get the doc string or comments for an object."""
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result = inspect.getdoc(object)
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if not result:
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try: result = inspect.getcomments(object)
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except: pass
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return result and rstrip(result) or ''
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def classname(object, modname):
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"""Get a class name and qualify it with a module name if necessary."""
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name = object.__name__
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if object.__module__ != modname:
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name = object.__module__ + '.' + name
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return name
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def isconstant(object):
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"""Check if an object is of a type that probably means it's a constant."""
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return type(object) in [
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types.FloatType, types.IntType, types.ListType, types.LongType,
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types.StringType, types.TupleType, types.TypeType,
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hasattr(types, 'UnicodeType') and types.UnicodeType or 0]
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def replace(text, *pairs):
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"""Do a series of global replacements on a string."""
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for old, new in pairs:
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text = join(split(text, old), new)
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return text
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def cram(text, maxlen):
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"""Omit part of a string if needed to make it fit in a maximum length."""
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if len(text) > maxlen:
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pre = max(0, (maxlen-3)/2)
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post = max(0, maxlen-3-pre)
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return text[:pre] + '...' + text[len(text)-post:]
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return text
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def cleanid(text):
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"""Remove the hexadecimal id from a Python object representation."""
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return re.sub(' at 0x[0-9a-f]{5,}>$', '>', text)
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def modulename(path):
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"""Return the Python module name for a given path, or None."""
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filename = os.path.basename(path)
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if lower(filename[-3:]) == '.py':
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return filename[:-3]
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elif lower(filename[-4:]) == '.pyc':
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return filename[:-4]
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elif lower(filename[-11:]) == 'module.so':
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return filename[:-11]
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elif lower(filename[-13:]) == 'module.so.1':
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return filename[:-13]
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class DocImportError(Exception):
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"""Class for errors while trying to import something to document it."""
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def __init__(self, filename, etype, evalue):
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self.filename = filename
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self.etype = etype
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self.evalue = evalue
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if type(etype) is types.ClassType:
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etype = etype.__name__
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self.args = '%s: %s' % (etype, evalue)
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def importfile(path):
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"""Import a Python source file or compiled file given its path."""
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magic = imp.get_magic()
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file = open(path, 'r')
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if file.read(len(magic)) == magic:
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kind = imp.PY_COMPILED
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else:
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kind = imp.PY_SOURCE
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file.close()
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filename = os.path.basename(path)
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name, ext = os.path.splitext(filename)
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file = open(path, 'r')
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try:
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module = imp.load_module(name, file, path, (ext, 'r', kind))
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except:
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raise DocImportError(path, sys.exc_type, sys.exc_value)
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file.close()
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return module
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def ispackage(path):
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"""Guess whether a path refers to a package directory."""
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if os.path.isdir(path):
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init = os.path.join(path, '__init__.py')
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initc = os.path.join(path, '__init__.pyc')
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if os.path.isfile(init) or os.path.isfile(initc):
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return 1
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# ---------------------------------------------------- formatter base class
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class Doc:
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def document(self, object, *args):
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"""Generate documentation for an object."""
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args = (object,) + args
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if inspect.ismodule(object): return apply(self.docmodule, args)
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if inspect.isclass(object): return apply(self.docclass, args)
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if inspect.ismethod(object): return apply(self.docmethod, args)
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if inspect.isbuiltin(object): return apply(self.docbuiltin, args)
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if inspect.isfunction(object): return apply(self.docfunction, args)
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raise TypeError, "don't know how to document objects of type " + \
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type(object).__name__
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# -------------------------------------------- HTML documentation generator
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class HTMLRepr(Repr):
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"""Class for safely making an HTML representation of a Python object."""
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def __init__(self):
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Repr.__init__(self)
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self.maxlist = self.maxtuple = self.maxdict = 10
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self.maxstring = self.maxother = 50
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def escape(self, text):
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return replace(text, ('&', '&'), ('<', '<'), ('>', '>'))
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def repr(self, object):
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result = Repr.repr(self, object)
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return result
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def repr1(self, x, level):
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methodname = 'repr_' + join(split(type(x).__name__), '_')
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if hasattr(self, methodname):
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return getattr(self, methodname)(x, level)
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else:
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return self.escape(cram(cleanid(repr(x)), self.maxother))
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def repr_string(self, x, level):
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text = self.escape(cram(x, self.maxstring))
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return re.sub(r'((\\[\\abfnrtv]|\\x..|\\u....)+)',
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r'<font color="#c040c0">\1</font>', repr(text))
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def repr_instance(self, x, level):
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try:
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return cram(cleanid(repr(x)), self.maxstring)
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except:
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return self.escape('<%s instance>' % x.__class__.__name__)
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repr_unicode = repr_string
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class HTMLDoc(Doc):
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"""Formatter class for HTML documentation."""
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# ------------------------------------------- HTML formatting utilities
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_repr_instance = HTMLRepr()
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repr = _repr_instance.repr
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escape = _repr_instance.escape
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def preformat(self, text):
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"""Format literal preformatted text."""
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text = self.escape(expandtabs(text))
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return replace(text, ('\n\n', '\n \n'), ('\n\n', '\n \n'),
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(' ', ' '), ('\n', '<br>\n'))
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def multicolumn(self, list, format, cols=4):
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"""Format a list of items into a multi-column list."""
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result = ''
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rows = (len(list)+cols-1)/cols
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for col in range(cols):
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result = result + '<td width="%d%%" valign=top>' % (100/cols)
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for i in range(rows*col, rows*col+rows):
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if i < len(list):
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result = result + format(list[i]) + '<br>'
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result = result + '</td>'
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return '<table width="100%%"><tr>%s</tr></table>' % result
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def heading(self, title, fgcol, bgcol, extras=''):
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"""Format a page heading."""
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return """
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<p><table width="100%%" cellspacing=0 cellpadding=0 border=0>
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<tr bgcolor="%s"><td colspan=3 valign=bottom><small><small><br></small></small
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><font color="%s" face="helvetica, arial"> %s</font></td
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><td align=right valign=bottom
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><font color="%s" face="helvetica, arial"> %s</font></td></tr></table>
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""" % (bgcol, fgcol, title, fgcol, extras)
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def section(self, title, fgcol, bgcol, contents, width=20,
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prelude='', marginalia=None, gap=' '):
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"""Format a section with a heading."""
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if marginalia is None:
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marginalia = ' ' * width
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result = """
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<p><table width="100%%" cellspacing=0 cellpadding=0 border=0>
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<tr bgcolor="%s"><td colspan=3 valign=bottom><small><small><br></small></small
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><font color="%s" face="helvetica, arial"> %s</font></td></tr>
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""" % (bgcol, fgcol, title)
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if prelude:
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result = result + """
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<tr><td bgcolor="%s">%s</td>
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<td bgcolor="%s" colspan=2>%s</td></tr>
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""" % (bgcol, marginalia, bgcol, prelude)
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result = result + """
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<tr><td bgcolor="%s">%s</td><td>%s</td>
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""" % (bgcol, marginalia, gap)
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result = result + '<td width="100%%">%s</td></tr></table>' % contents
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return result
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def bigsection(self, title, *args):
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"""Format a section with a big heading."""
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title = '<big><strong>%s</strong></big>' % title
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return apply(self.section, (title,) + args)
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def footer(self):
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return """
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<table width="100%"><tr><td align=right>
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<font face="helvetica, arial"><small><small>generated with
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<strong>htmldoc</strong> by Ka-Ping Yee</a></small></small></font>
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</td></tr></table>
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"""
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def namelink(self, name, *dicts):
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"""Make a link for an identifier, given name-to-URL mappings."""
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for dict in dicts:
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if dict.has_key(name):
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return '<a href="%s">%s</a>' % (dict[name], name)
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return name
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def classlink(self, object, modname, *dicts):
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"""Make a link for a class."""
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name = object.__name__
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if object.__module__ != modname:
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name = object.__module__ + '.' + name
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for dict in dicts:
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if dict.has_key(object):
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return '<a href="%s">%s</a>' % (dict[object], name)
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return name
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def modulelink(self, object):
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"""Make a link for a module."""
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return '<a href="%s.html">%s</a>' % (object.__name__, object.__name__)
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def modpkglink(self, (name, path, ispackage, shadowed)):
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"""Make a link for a module or package to display in an index."""
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if shadowed:
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return '<font color="#909090">%s</font>' % name
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if path:
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url = '%s.%s.html' % (path, name)
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else:
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url = '%s.html' % name
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if ispackage:
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text = '<strong>%s</strong> (package)' % name
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else:
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text = name
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return '<a href="%s">%s</a>' % (url, text)
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def markup(self, text, escape=None, funcs={}, classes={}, methods={}):
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"""Mark up some plain text, given a context of symbols to look for.
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Each context dictionary maps object names to anchor names."""
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escape = escape or self.escape
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results = []
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here = 0
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pattern = re.compile(r'\b(((http|ftp)://\S+[\w/])|'
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r'(RFC[- ]?(\d+))|'
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r'(self\.)?(\w+))\b')
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while 1:
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match = pattern.search(text, here)
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if not match: break
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start, end = match.span()
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results.append(escape(text[here:start]))
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all, url, scheme, rfc, rfcnum, selfdot, name = match.groups()
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if url:
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results.append('<a href="%s">%s</a>' % (url, escape(url)))
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elif rfc:
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url = 'http://www.rfc-editor.org/rfc/rfc%s.txt' % rfcnum
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results.append('<a href="%s">%s</a>' % (url, escape(rfc)))
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else:
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if text[end:end+1] == '(':
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results.append(self.namelink(name, methods, funcs, classes))
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elif selfdot:
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results.append('self.<strong>%s</strong>' % name)
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else:
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results.append(self.namelink(name, classes))
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here = end
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results.append(escape(text[here:]))
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return join(results, '')
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# ---------------------------------------------- type-specific routines
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def doctree(self, tree, modname, classes={}, parent=None):
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"""Produce HTML for a class tree as given by inspect.getclasstree()."""
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result = ''
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for entry in tree:
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if type(entry) is type(()):
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c, bases = entry
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result = result + '<dt><font face="helvetica, arial"><small>'
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result = result + self.classlink(c, modname, classes)
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if bases and bases != (parent,):
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parents = []
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for base in bases:
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parents.append(self.classlink(base, modname, classes))
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result = result + '(' + join(parents, ', ') + ')'
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result = result + '\n</small></font></dt>'
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elif type(entry) is type([]):
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result = result + \
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'<dd>\n%s</dd>\n' % self.doctree(entry, modname, classes, c)
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return '<dl>\n%s</dl>\n' % result
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def docmodule(self, object):
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"""Produce HTML documentation for a module object."""
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name = object.__name__
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result = ''
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head = '<br><big><big><strong> %s</strong></big></big>' % name
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try:
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file = inspect.getsourcefile(object)
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filelink = '<a href="file:%s">%s</a>' % (file, file)
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except TypeError:
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filelink = '(built-in)'
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if hasattr(object, '__version__'):
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head = head + ' (version: %s)' % self.escape(object.__version__)
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result = result + self.heading(
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head, '#ffffff', '#7799ee', '<a href=".">index</a><br>' + filelink)
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second = lambda list: list[1]
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modules = map(second, inspect.getmembers(object, inspect.ismodule))
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classes, cdict = [], {}
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for key, value in inspect.getmembers(object, inspect.isclass):
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if (inspect.getmodule(value) or object) is object:
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classes.append(value)
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cdict[key] = cdict[value] = '#' + key
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funcs, fdict = [], {}
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for key, value in inspect.getmembers(object, inspect.isroutine):
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if inspect.isbuiltin(value) or inspect.getmodule(value) is object:
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funcs.append(value)
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fdict[key] = '#-' + key
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if inspect.isfunction(value): fdict[value] = fdict[key]
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for c in classes:
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for base in c.__bases__:
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key, modname = base.__name__, base.__module__
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if modname != name and sys.modules.has_key(modname):
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module = sys.modules[modname]
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if hasattr(module, key) and getattr(module, key) is base:
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if not cdict.has_key(key):
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cdict[key] = cdict[base] = modname + '.html#' + key
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constants = []
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for key, value in inspect.getmembers(object, isconstant):
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if key[:1] != '_':
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constants.append((key, value))
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doc = self.markup(getdoc(object), self.preformat, fdict, cdict)
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doc = doc and '<tt>%s</tt>' % doc
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result = result + '<p><small>%s</small></p>\n' % doc
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|
|
|
if hasattr(object, '__path__'):
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modpkgs = []
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modnames = []
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for file in os.listdir(object.__path__[0]):
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|
if file[:1] != '_':
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path = os.path.join(object.__path__[0], file)
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modname = modulename(file)
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|
if modname and modname not in modnames:
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modpkgs.append((modname, name, 0, 0))
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modnames.append(modname)
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elif ispackage(path):
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modpkgs.append((file, name, 1, 0))
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modpkgs.sort()
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contents = self.multicolumn(modpkgs, self.modpkglink)
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result = result + self.bigsection(
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'Package Contents', '#ffffff', '#aa55cc', contents)
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elif modules:
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contents = self.multicolumn(modules, self.modulelink)
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result = result + self.bigsection(
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'Modules', '#fffff', '#aa55cc', contents)
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if classes:
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contents = self.doctree(
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inspect.getclasstree(classes, 1), name, cdict)
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for item in classes:
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contents = contents + self.document(item, fdict, cdict)
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result = result + self.bigsection(
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'Classes', '#ffffff', '#ee77aa', contents)
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if funcs:
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contents = ''
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for item in funcs:
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contents = contents + self.document(item, fdict, cdict)
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result = result + self.bigsection(
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'Functions', '#ffffff', '#eeaa77', contents)
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|
|
if constants:
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|
contents = ''
|
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for key, value in constants:
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|
contents = contents + ('<br><strong>%s</strong> = %s' %
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(key, self.repr(value)))
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result = result + self.bigsection(
|
|
'Constants', '#ffffff', '#55aa55', contents)
|
|
|
|
return result
|
|
|
|
def docclass(self, object, funcs={}, classes={}):
|
|
"""Produce HTML documentation for a class object."""
|
|
name = object.__name__
|
|
bases = object.__bases__
|
|
contents = ''
|
|
|
|
methods, mdict = [], {}
|
|
for key, value in inspect.getmembers(object, inspect.ismethod):
|
|
methods.append(value)
|
|
mdict[key] = mdict[value] = '#' + name + '-' + key
|
|
for item in methods:
|
|
contents = contents + self.document(
|
|
item, funcs, classes, mdict, name)
|
|
|
|
title = '<a name="%s">class <strong>%s</strong></a>' % (name, name)
|
|
if bases:
|
|
parents = []
|
|
for base in bases:
|
|
parents.append(self.classlink(base, object.__module__, classes))
|
|
title = title + '(%s)' % join(parents, ', ')
|
|
doc = self.markup(getdoc(object), self.preformat,
|
|
funcs, classes, mdict)
|
|
if doc: doc = '<small><tt>' + doc + '<br> </tt></small>'
|
|
return self.section(title, '#000000', '#ffc8d8', contents, 10, doc)
|
|
|
|
def docmethod(self, object, funcs={}, classes={}, methods={}, clname=''):
|
|
"""Produce HTML documentation for a method object."""
|
|
return self.document(
|
|
object.im_func, funcs, classes, methods, clname)
|
|
|
|
def formatvalue(self, object):
|
|
"""Format an argument default value as text."""
|
|
return ('<small><font color="#909090">=%s</font></small>' %
|
|
self.repr(object))
|
|
|
|
def docfunction(self, object, funcs={}, classes={}, methods={}, clname=''):
|
|
"""Produce HTML documentation for a function object."""
|
|
args, varargs, varkw, defaults = inspect.getargspec(object)
|
|
argspec = inspect.formatargspec(
|
|
args, varargs, varkw, defaults, formatvalue=self.formatvalue)
|
|
|
|
if object.__name__ == '<lambda>':
|
|
decl = '<em>lambda</em> ' + argspec[1:-1]
|
|
else:
|
|
anchor = clname + '-' + object.__name__
|
|
decl = '<a name="%s"\n><strong>%s</strong>%s</a>\n' % (
|
|
anchor, object.__name__, argspec)
|
|
doc = self.markup(getdoc(object), self.preformat,
|
|
funcs, classes, methods)
|
|
doc = replace(doc, ('<br>\n', '</tt></small\n><dd><small><tt>'))
|
|
doc = doc and '<tt>%s</tt>' % doc
|
|
return '<dl><dt>%s<dd><small>%s</small></dl>' % (decl, doc)
|
|
|
|
def docbuiltin(self, object, *extras):
|
|
"""Produce HTML documentation for a built-in function."""
|
|
return '<dl><dt><strong>%s</strong>(...)</dl>' % object.__name__
|
|
|
|
def page(self, object):
|
|
"""Produce a complete HTML page of documentation for an object."""
|
|
return '''<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|
<html><title>Python: %s</title>
|
|
<body bgcolor="#ffffff">
|
|
%s
|
|
</body></html>
|
|
''' % (describe(object), self.document(object))
|
|
|
|
def index(self, dir, shadowed=None):
|
|
"""Generate an HTML index for a directory of modules."""
|
|
modpkgs = []
|
|
if shadowed is None: shadowed = {}
|
|
seen = {}
|
|
files = os.listdir(dir)
|
|
|
|
def found(name, ispackage,
|
|
modpkgs=modpkgs, shadowed=shadowed, seen=seen):
|
|
if not seen.has_key(name):
|
|
modpkgs.append((name, '', ispackage, shadowed.has_key(name)))
|
|
seen[name] = 1
|
|
shadowed[name] = 1
|
|
|
|
# Package spam/__init__.py takes precedence over module spam.py.
|
|
for file in files:
|
|
path = os.path.join(dir, file)
|
|
if ispackage(path): found(file, 1)
|
|
for file in files:
|
|
path = os.path.join(dir, file)
|
|
if file[:1] != '_' and os.path.isfile(path):
|
|
modname = modulename(file)
|
|
if modname: found(modname, 0)
|
|
|
|
modpkgs.sort()
|
|
contents = self.multicolumn(modpkgs, self.modpkglink)
|
|
return self.bigsection(dir, '#ffffff', '#ee77aa', contents)
|
|
|
|
# -------------------------------------------- text documentation generator
|
|
|
|
class TextRepr(Repr):
|
|
"""Class for safely making a text representation of a Python object."""
|
|
def __init__(self):
|
|
Repr.__init__(self)
|
|
self.maxlist = self.maxtuple = self.maxdict = 10
|
|
self.maxstring = self.maxother = 50
|
|
|
|
def repr1(self, x, level):
|
|
methodname = 'repr_' + join(split(type(x).__name__), '_')
|
|
if hasattr(self, methodname):
|
|
return getattr(self, methodname)(x, level)
|
|
else:
|
|
return cram(cleanid(repr(x)), self.maxother)
|
|
|
|
def repr_instance(self, x, level):
|
|
try:
|
|
return cram(cleanid(repr(x)), self.maxstring)
|
|
except:
|
|
return '<%s instance>' % x.__class__.__name__
|
|
|
|
class TextDoc(Doc):
|
|
"""Formatter class for text documentation."""
|
|
|
|
# ------------------------------------------- text formatting utilities
|
|
|
|
_repr_instance = TextRepr()
|
|
repr = _repr_instance.repr
|
|
|
|
def bold(self, text):
|
|
"""Format a string in bold by overstriking."""
|
|
return join(map(lambda ch: ch + '\b' + ch, text), '')
|
|
|
|
def indent(self, text, prefix=' '):
|
|
"""Indent text by prepending a given prefix to each line."""
|
|
if not text: return ''
|
|
lines = split(text, '\n')
|
|
lines = map(lambda line, prefix=prefix: prefix + line, lines)
|
|
if lines: lines[-1] = rstrip(lines[-1])
|
|
return join(lines, '\n')
|
|
|
|
def section(self, title, contents):
|
|
"""Format a section with a given heading."""
|
|
return self.bold(title) + '\n' + rstrip(self.indent(contents)) + '\n\n'
|
|
|
|
# ---------------------------------------------- type-specific routines
|
|
|
|
def doctree(self, tree, modname, parent=None, prefix=''):
|
|
"""Render in text a class tree as returned by inspect.getclasstree()."""
|
|
result = ''
|
|
for entry in tree:
|
|
if type(entry) is type(()):
|
|
cl, bases = entry
|
|
result = result + prefix + classname(cl, modname)
|
|
if bases and bases != (parent,):
|
|
parents = map(lambda cl, m=modname: classname(cl, m), bases)
|
|
result = result + '(%s)' % join(parents, ', ')
|
|
result = result + '\n'
|
|
elif type(entry) is type([]):
|
|
result = result + self.doctree(
|
|
entry, modname, cl, prefix + ' ')
|
|
return result
|
|
|
|
def docmodule(self, object):
|
|
"""Produce text documentation for a given module object."""
|
|
result = ''
|
|
|
|
name = object.__name__
|
|
lines = split(strip(getdoc(object)), '\n')
|
|
if len(lines) == 1:
|
|
if lines[0]: name = name + ' - ' + lines[0]
|
|
lines = []
|
|
elif len(lines) >= 2 and not rstrip(lines[1]):
|
|
if lines[0]: name = name + ' - ' + lines[0]
|
|
lines = lines[2:]
|
|
result = result + self.section('NAME', name)
|
|
try: file = inspect.getfile(object) # XXX or getsourcefile?
|
|
except TypeError: file = None
|
|
result = result + self.section('FILE', file or '(built-in)')
|
|
if lines:
|
|
result = result + self.section('DESCRIPTION', join(lines, '\n'))
|
|
|
|
classes = []
|
|
for key, value in inspect.getmembers(object, inspect.isclass):
|
|
if (inspect.getmodule(value) or object) is object:
|
|
classes.append(value)
|
|
funcs = []
|
|
for key, value in inspect.getmembers(object, inspect.isroutine):
|
|
if inspect.isbuiltin(value) or inspect.getmodule(value) is object:
|
|
funcs.append(value)
|
|
constants = []
|
|
for key, value in inspect.getmembers(object, isconstant):
|
|
if key[:1] != '_':
|
|
constants.append((key, value))
|
|
|
|
if hasattr(object, '__path__'):
|
|
modpkgs = []
|
|
for file in os.listdir(object.__path__[0]):
|
|
if file[:1] != '_':
|
|
path = os.path.join(object.__path__[0], file)
|
|
modname = modulename(file)
|
|
if modname and modname not in modpkgs:
|
|
modpkgs.append(modname)
|
|
elif ispackage(path):
|
|
modpkgs.append(file + ' (package)')
|
|
modpkgs.sort()
|
|
result = result + self.section(
|
|
'PACKAGE CONTENTS', join(modpkgs, '\n'))
|
|
|
|
if classes:
|
|
contents = self.doctree(
|
|
inspect.getclasstree(classes, 1), object.__name__) + '\n'
|
|
for item in classes:
|
|
contents = contents + self.document(item) + '\n'
|
|
result = result + self.section('CLASSES', contents)
|
|
|
|
if funcs:
|
|
contents = ''
|
|
for item in funcs:
|
|
contents = contents + self.document(item) + '\n'
|
|
result = result + self.section('FUNCTIONS', contents)
|
|
|
|
if constants:
|
|
contents = ''
|
|
for key, value in constants:
|
|
line = key + ' = ' + self.repr(value)
|
|
chop = 70 - len(line)
|
|
line = self.bold(key) + ' = ' + self.repr(value)
|
|
if chop < 0: line = line[:chop] + '...'
|
|
contents = contents + line + '\n'
|
|
result = result + self.section('CONSTANTS', contents)
|
|
|
|
if hasattr(object, '__version__'):
|
|
version = str(object.__version__)
|
|
if hasattr(object, '__date__'):
|
|
version = version + ', ' + str(object.__date__)
|
|
result = result + self.section('VERSION', version)
|
|
|
|
if hasattr(object, '__author__'):
|
|
author = str(object.__author__)
|
|
if hasattr(object, '__email__'):
|
|
author = author + ' <' + str(object.__email__) + '>'
|
|
result = result + self.section('AUTHOR', author)
|
|
|
|
return result
|
|
|
|
def docclass(self, object):
|
|
"""Produce text documentation for a given class object."""
|
|
name = object.__name__
|
|
bases = object.__bases__
|
|
|
|
title = 'class ' + self.bold(name)
|
|
if bases:
|
|
parents = map(lambda c, m=object.__module__: classname(c, m), bases)
|
|
title = title + '(%s)' % join(parents, ', ')
|
|
|
|
doc = getdoc(object)
|
|
contents = doc and doc + '\n'
|
|
methods = map(lambda (key, value): value,
|
|
inspect.getmembers(object, inspect.ismethod))
|
|
for item in methods:
|
|
contents = contents + '\n' + self.document(item)
|
|
|
|
if not contents: return title + '\n'
|
|
return title + '\n' + self.indent(rstrip(contents), ' | ') + '\n'
|
|
|
|
def docmethod(self, object):
|
|
"""Produce text documentation for a method object."""
|
|
return self.document(object.im_func)
|
|
|
|
def formatvalue(self, object):
|
|
"""Format an argument default value as text."""
|
|
return '=' + self.repr(object)
|
|
|
|
def docfunction(self, object):
|
|
"""Produce text documentation for a function object."""
|
|
try:
|
|
args, varargs, varkw, defaults = inspect.getargspec(object)
|
|
argspec = inspect.formatargspec(
|
|
args, varargs, varkw, defaults, formatvalue=self.formatvalue)
|
|
except TypeError:
|
|
argspec = '(...)'
|
|
|
|
if object.__name__ == '<lambda>':
|
|
decl = '<lambda> ' + argspec[1:-1]
|
|
else:
|
|
decl = self.bold(object.__name__) + argspec
|
|
doc = getdoc(object)
|
|
if doc:
|
|
return decl + '\n' + rstrip(self.indent(doc)) + '\n'
|
|
else:
|
|
return decl + '\n'
|
|
|
|
def docbuiltin(self, object):
|
|
"""Produce text documentation for a built-in function object."""
|
|
return (self.bold(object.__name__) + '(...)\n' +
|
|
rstrip(self.indent(object.__doc__)) + '\n')
|
|
|
|
# --------------------------------------------------------- user interfaces
|
|
|
|
def pager(text):
|
|
"""The first time this is called, determine what kind of pager to use."""
|
|
global pager
|
|
pager = getpager()
|
|
pager(text)
|
|
|
|
def getpager():
|
|
"""Decide what method to use for paging through text."""
|
|
if type(sys.stdout) is not types.FileType:
|
|
return plainpager
|
|
if not sys.stdin.isatty() or not sys.stdout.isatty():
|
|
return plainpager
|
|
if os.environ.has_key('PAGER'):
|
|
return lambda a: pipepager(a, os.environ['PAGER'])
|
|
if sys.platform in ['win', 'win32', 'nt']:
|
|
return lambda a: tempfilepager(a, 'more')
|
|
if hasattr(os, 'system') and os.system('less 2>/dev/null') == 0:
|
|
return lambda a: pipepager(a, 'less')
|
|
|
|
import tempfile
|
|
filename = tempfile.mktemp()
|
|
open(filename, 'w').close()
|
|
try:
|
|
if hasattr(os, 'system') and os.system('more %s' % filename) == 0:
|
|
return lambda text: pipepager(text, 'more')
|
|
else:
|
|
return ttypager
|
|
finally:
|
|
os.unlink(filename)
|
|
|
|
def pipepager(text, cmd):
|
|
"""Page through text by feeding it to another program."""
|
|
pipe = os.popen(cmd, 'w')
|
|
try:
|
|
pipe.write(text)
|
|
pipe.close()
|
|
except IOError:
|
|
# Ignore broken pipes caused by quitting the pager program.
|
|
pass
|
|
|
|
def tempfilepager(text, cmd):
|
|
"""Page through text by invoking a program on a temporary file."""
|
|
import tempfile
|
|
filename = tempfile.mktemp()
|
|
file = open(filename, 'w')
|
|
file.write(text)
|
|
file.close()
|
|
try:
|
|
os.system(cmd + ' ' + filename)
|
|
finally:
|
|
os.unlink(filename)
|
|
|
|
def plain(text):
|
|
"""Remove boldface formatting from text."""
|
|
return re.sub('.\b', '', text)
|
|
|
|
def ttypager(text):
|
|
"""Page through text on a text terminal."""
|
|
lines = split(plain(text), '\n')
|
|
try:
|
|
import tty
|
|
fd = sys.stdin.fileno()
|
|
old = tty.tcgetattr(fd)
|
|
tty.setcbreak(fd)
|
|
getchar = lambda: sys.stdin.read(1)
|
|
except ImportError:
|
|
tty = None
|
|
getchar = lambda: sys.stdin.readline()[:-1][:1]
|
|
|
|
try:
|
|
r = inc = os.environ.get('LINES', 25) - 1
|
|
sys.stdout.write(join(lines[:inc], '\n') + '\n')
|
|
while lines[r:]:
|
|
sys.stdout.write('-- more --')
|
|
sys.stdout.flush()
|
|
c = getchar()
|
|
|
|
if c in ['q', 'Q']:
|
|
sys.stdout.write('\r \r')
|
|
break
|
|
elif c in ['\r', '\n']:
|
|
sys.stdout.write('\r \r' + lines[r] + '\n')
|
|
r = r + 1
|
|
continue
|
|
if c in ['b', 'B', '\x1b']:
|
|
r = r - inc - inc
|
|
if r < 0: r = 0
|
|
sys.stdout.write('\n' + join(lines[r:r+inc], '\n') + '\n')
|
|
r = r + inc
|
|
|
|
finally:
|
|
if tty:
|
|
tty.tcsetattr(fd, tty.TCSAFLUSH, old)
|
|
|
|
def plainpager(text):
|
|
"""Simply print unformatted text. This is the ultimate fallback."""
|
|
sys.stdout.write(plain(text))
|
|
|
|
def describe(thing):
|
|
"""Produce a short description of the given kind of thing."""
|
|
if inspect.ismodule(thing):
|
|
if thing.__name__ in sys.builtin_module_names:
|
|
return 'built-in module ' + thing.__name__
|
|
if hasattr(thing, '__path__'):
|
|
return 'package ' + thing.__name__
|
|
else:
|
|
return 'module ' + thing.__name__
|
|
if inspect.isbuiltin(thing):
|
|
return 'built-in function ' + thing.__name__
|
|
if inspect.isclass(thing):
|
|
return 'class ' + thing.__name__
|
|
if inspect.isfunction(thing):
|
|
return 'function ' + thing.__name__
|
|
if inspect.ismethod(thing):
|
|
return 'method ' + thing.__name__
|
|
return repr(thing)
|
|
|
|
def locate(path):
|
|
"""Locate an object by name (or dotted path), importing as necessary."""
|
|
if not path: # special case: imp.find_module('') strangely succeeds
|
|
return None, None
|
|
if type(path) is not types.StringType:
|
|
return None, path
|
|
if hasattr(__builtins__, path):
|
|
return None, getattr(__builtins__, path)
|
|
parts = split(path, '.')
|
|
n = 1
|
|
while n <= len(parts):
|
|
path = join(parts[:n], '.')
|
|
try:
|
|
module = __import__(path)
|
|
module = reload(module)
|
|
except:
|
|
# Did the error occur before or after we found the module?
|
|
if sys.modules.has_key(path):
|
|
filename = sys.modules[path].__file__
|
|
elif sys.exc_type is SyntaxError:
|
|
filename = sys.exc_value.filename
|
|
else:
|
|
# module not found, so stop looking
|
|
break
|
|
# error occurred in the imported module, so report it
|
|
raise DocImportError(filename, sys.exc_type, sys.exc_value)
|
|
try:
|
|
x = module
|
|
for p in parts[1:]:
|
|
x = getattr(x, p)
|
|
return join(parts[:-1], '.'), x
|
|
except AttributeError:
|
|
n = n + 1
|
|
continue
|
|
return None, None
|
|
|
|
# --------------------------------------- interactive interpreter interface
|
|
|
|
text = TextDoc()
|
|
html = HTMLDoc()
|
|
|
|
def doc(thing):
|
|
"""Display documentation on an object (for interactive use)."""
|
|
if type(thing) is type(""):
|
|
try:
|
|
path, x = locate(thing)
|
|
except DocImportError, value:
|
|
print 'problem in %s - %s' % (value.filename, value.args)
|
|
return
|
|
if x:
|
|
thing = x
|
|
else:
|
|
print 'could not find or import %s' % repr(thing)
|
|
return
|
|
|
|
desc = describe(thing)
|
|
module = inspect.getmodule(thing)
|
|
if module and module is not thing:
|
|
desc = desc + ' in module ' + module.__name__
|
|
pager('Help on %s:\n\n' % desc + text.document(thing))
|
|
|
|
def writedocs(path, pkgpath=''):
|
|
if os.path.isdir(path):
|
|
dir = path
|
|
for file in os.listdir(dir):
|
|
path = os.path.join(dir, file)
|
|
if os.path.isdir(path):
|
|
writedocs(path, file + '.' + pkgpath)
|
|
if os.path.isfile(path):
|
|
writedocs(path, pkgpath)
|
|
if os.path.isfile(path):
|
|
modname = modulename(path)
|
|
if modname:
|
|
writedoc(pkgpath + modname)
|
|
|
|
def writedoc(key):
|
|
"""Write HTML documentation to a file in the current directory."""
|
|
path, object = locate(key)
|
|
if object:
|
|
file = open(key + '.html', 'w')
|
|
file.write(html.page(object))
|
|
file.close()
|
|
print 'wrote', key + '.html'
|
|
|
|
class Helper:
|
|
def __repr__(self):
|
|
return """To get help on a Python object, call help(object).
|
|
To get help on a module or package, either import it before calling
|
|
help(module) or call help('modulename')."""
|
|
|
|
def __call__(self, *args):
|
|
if args:
|
|
doc(args[0])
|
|
else:
|
|
print repr(self)
|
|
|
|
help = Helper()
|
|
|
|
def man(key):
|
|
"""Display documentation on an object in a form similar to man(1)."""
|
|
path, object = locate(key)
|
|
if object:
|
|
title = 'Python Library Documentation: ' + describe(object)
|
|
if path: title = title + ' in ' + path
|
|
pager('\n' + title + '\n\n' + text.document(object))
|
|
found = 1
|
|
else:
|
|
print 'could not find or import %s' % repr(key)
|
|
|
|
def apropos(key):
|
|
"""Print all the one-line module summaries that contain a substring."""
|
|
key = lower(key)
|
|
for module in sys.builtin_module_names:
|
|
desc = __import__(module).__doc__ or ''
|
|
desc = split(desc, '\n')[0]
|
|
if find(lower(module + ' ' + desc), key) >= 0:
|
|
print module, '-', desc or '(no description)'
|
|
modules = []
|
|
for dir in pathdirs():
|
|
for module, desc in index(dir):
|
|
desc = desc or ''
|
|
if module not in modules:
|
|
modules.append(module)
|
|
if find(lower(module + ' ' + desc), key) >= 0:
|
|
desc = desc or '(no description)'
|
|
if module[-9:] == '.__init__':
|
|
print module[:-9], '(package) -', desc
|
|
else:
|
|
print module, '-', desc
|
|
|
|
# --------------------------------------------------- web browser interface
|
|
|
|
def serve(address, callback=None):
|
|
import BaseHTTPServer, mimetools
|
|
|
|
# Patch up mimetools.Message so it doesn't break if rfc822 is reloaded.
|
|
class Message(mimetools.Message):
|
|
def __init__(self, fp, seekable=1):
|
|
Message = self.__class__
|
|
Message.__bases__[0].__bases__[0].__init__(self, fp, seekable)
|
|
self.encodingheader = self.getheader('content-transfer-encoding')
|
|
self.typeheader = self.getheader('content-type')
|
|
self.parsetype()
|
|
self.parseplist()
|
|
|
|
class DocHandler(BaseHTTPServer.BaseHTTPRequestHandler):
|
|
def send_document(self, title, contents):
|
|
self.send_response(200)
|
|
self.send_header('Content-Type', 'text/html')
|
|
self.end_headers()
|
|
self.wfile.write(
|
|
'''<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|
<html><title>Python: %s</title><body bgcolor="#ffffff">''' % title)
|
|
self.wfile.write(contents)
|
|
self.wfile.write('</body></html>')
|
|
|
|
def do_GET(self):
|
|
path = self.path
|
|
if path[-5:] == '.html': path = path[:-5]
|
|
if path[:1] == '/': path = path[1:]
|
|
if path and path != '.':
|
|
try:
|
|
p, x = locate(path)
|
|
except DocImportError, value:
|
|
self.send_document(path, html.escape(
|
|
'problem with %s - %s' % (value.filename, value.args)))
|
|
return
|
|
if x:
|
|
self.send_document(describe(x), html.document(x))
|
|
else:
|
|
self.send_document(path,
|
|
'There is no Python module or object named "%s".' % path)
|
|
else:
|
|
heading = html.heading(
|
|
'<br><big><big><strong> '
|
|
'Python: Index of Modules'
|
|
'</strong></big></big>',
|
|
'#ffffff', '#7799ee')
|
|
builtins = []
|
|
for name in sys.builtin_module_names:
|
|
builtins.append('<a href="%s.html">%s</a>' % (name, name))
|
|
indices = ['<p>Built-in modules: ' + join(builtins, ', ')]
|
|
seen = {}
|
|
for dir in pathdirs():
|
|
indices.append(html.index(dir, seen))
|
|
self.send_document('Index of Modules', heading + join(indices))
|
|
|
|
def log_message(self, *args): pass
|
|
|
|
class DocServer(BaseHTTPServer.HTTPServer):
|
|
def __init__(self, address, callback):
|
|
self.callback = callback
|
|
self.base.__init__(self, address, self.handler)
|
|
|
|
def server_activate(self):
|
|
self.base.server_activate(self)
|
|
if self.callback: self.callback()
|
|
|
|
DocServer.base = BaseHTTPServer.HTTPServer
|
|
DocServer.handler = DocHandler
|
|
DocHandler.MessageClass = Message
|
|
try:
|
|
DocServer(address, callback).serve_forever()
|
|
except KeyboardInterrupt:
|
|
print 'server stopped'
|
|
|
|
# -------------------------------------------------- command-line interface
|
|
|
|
if __name__ == '__main__':
|
|
import getopt
|
|
class BadUsage: pass
|
|
|
|
try:
|
|
opts, args = getopt.getopt(sys.argv[1:], 'k:p:w')
|
|
writing = 0
|
|
|
|
for opt, val in opts:
|
|
if opt == '-k':
|
|
apropos(lower(val))
|
|
break
|
|
if opt == '-p':
|
|
try:
|
|
port = int(val)
|
|
except ValueError:
|
|
raise BadUsage
|
|
def ready(port=port):
|
|
print 'server ready at http://127.0.0.1:%d/' % port
|
|
serve(('127.0.0.1', port), ready)
|
|
break
|
|
if opt == '-w':
|
|
if not args: raise BadUsage
|
|
writing = 1
|
|
else:
|
|
if args:
|
|
for arg in args:
|
|
try:
|
|
if os.path.isfile(arg):
|
|
arg = importfile(arg)
|
|
if writing:
|
|
if os.path.isdir(arg): writedocs(arg)
|
|
else: writedoc(arg)
|
|
else: man(arg)
|
|
except DocImportError, value:
|
|
print 'problem in %s - %s' % (
|
|
value.filename, value.args)
|
|
else:
|
|
if sys.platform in ['mac', 'win', 'win32', 'nt']:
|
|
# GUI platforms with threading
|
|
import threading
|
|
ready = threading.Event()
|
|
address = ('127.0.0.1', 12346)
|
|
threading.Thread(
|
|
target=serve, args=(address, ready.set)).start()
|
|
ready.wait()
|
|
import webbrowser
|
|
webbrowser.open('http://127.0.0.1:12346/')
|
|
else:
|
|
raise BadUsage
|
|
|
|
except (getopt.error, BadUsage):
|
|
print """%s <name> ...
|
|
Show documentation on something.
|
|
<name> may be the name of a Python function, module, or package,
|
|
or a dotted reference to a class or function within a module or
|
|
module in a package, or the filename of a Python module to import.
|
|
|
|
%s -k <keyword>
|
|
Search for a keyword in the synopsis lines of all modules.
|
|
|
|
%s -p <port>
|
|
Start an HTTP server on the given port on the local machine.
|
|
|
|
%s -w <module> ...
|
|
Write out the HTML documentation for a module to a file.
|
|
|
|
%s -w <moduledir>
|
|
Write out the HTML documentation for all modules in the tree
|
|
under a given directory to files in the current directory.
|
|
""" % ((sys.argv[0],) * 5)
|