pydu/docs/file.rst

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File
-------
.. py:function:: pydu.file.makedirs(path, mode=0o755, ignore_errors=False, exist_ok=False)
Based on ``os.makedirs``,create a leaf directory and all intermediate ones.
``mode`` default is ``0o755``. When make an exists path, if exist_ok is false,
``makedirs`` will raise an ``Exception``. If ``ignore_errors`` which will ignore
all errors raised by ``os.makedirs``.
>>> from pydu.file import makedirs
>>> makedirs('test1/test2')
>>> makedirs('test1',exist_ok=True)
>>> makedirs('test1')
Traceback (most recent call last):
... OSError: Create dir: test1 error.
.. py:function:: pydu.file.remove(path, mode=0o755, ignore_errors=False, onerror)
Remove a file or directory.
If ``ignore_errors`` is set, errors are ignored; otherwise, if `onerror`
is set, it is called to handle the error with arguments (`func` ,
`path` , `exc_info` ) where func is platform and implementation dependent;
`path` is the argument to that function that caused it to fail; and
`exc_info` is a tuple returned by `sys.exc_info()`. If `ignore_errors`
is `False` and `onerror` is None, an exception is raised.
>>> from pydu.file import makedirs
>>> from pydu.file import remove
>>> from pydu.file import open_file
>>> makedirs('test1')
>>> remove('test1')
>>> open_file('test.txt')
>>> remove('test.txt')
>>> remove('test',ignore_errors=True)
>>> remove('test')
Traceback (most recent call last):
... OSError: Remove path: test error
.. py:function:: pydu.file.removes(paths, mode=0o755, ignore_errors=False, onerror)
Remove a list of file and/or directory.Other parameters same as `remove`.
>>> from pydu.file import makedirs
>>> from pydu.file import remove
>>> from pydu.file import open_file
>>> makedirs('test1')
>>> makedirs('test2')
>>> open_file('test.txt')
>>> removes(['test.txt','test1','test2'])
.. py:function:: pydu.file.open_file(path, mode='wb+', buffer_size=-1, ignore_errors=False):
Open a file, defualt mode ``wb+``. If path not exists, it will be created
automatically. If ``ignore_errors`` is set, errors are ignored.
>>> from pydu.file import open_file
>>> open_file('test.txt')
>>> ls
test.txt
>>> open_file('test1.txt',mode='r')
Traceback (most recent call last):
... OSError: Open file: test1.txt error
.. py:function:: pydu.file.copy(src, dst, ignore_errors=False, follow_symlinks=True):
Copy data and mode bits (`cp src dst`).Both the source and destination
may be a directory.When `copy` a directory,which contains a symlink,if
the optional symlinks flag is true, symbolic links in the source tree
result in symbolic links in the destination tree; if it is false, the
contents of the files pointed to by symbolic links are copied.When copy
a file,if follow_symlinks is false and src is a symbolic link, a new
symlink will be created instead of copying the file it points to,else
the contents of the file pointed to by symbolic links is copied.
>>> from pydu.file import copy,symlink
>>> from pydu.file import makedirs,open_fle
>>> open_fle('test/test.txt')
>>> symlink('test/test.txt','test/test.link')
>>> copy('test/test.link','test/test_copy1.link')
>>> copy('test/test.link','test/test_copy2.link',follow_symlink=False)
.. py:function:: pydu.file.touch(path):
Open a file as write,and then close it.
>>> from pydu.file import touch
>>> touch('test.txt')
.. py:function:: pydu.file.symlink(src, dst, overwrite=False, ignore_errors=False)
``symlink`` only work on `Unix-like` system, it create a symbolic link pointing
to source named link_name.If dist is exist and overwrite is true,a new
symlink will be created.
>>> from pydu.file import symlink
>>> symlink('test.txt','test.link')
.. py:function:: pydu.file.link(src, dst, overwrite=False, ignore_errors=False):
``link`` only work on `Unix-like` system, it create a hard link pointing to
source named link_name.If dist is exist and overwrite is true,a
new link will be created.
>>> from pydu.file import link
>>> link('test.txt','test.link')