Added uninstall option

PC/setup_nt/readme.txt

@@ -2,17 +2,19 @@ Python 1.4beta3 for Windows NT 3.5
 ==================================
 
 The zip file pyth14b3.zip contains a preliminary binary release of
-Python 1.4beta3 for Windows NT 3.5, with Tcl/Tk support.  The
-installation has not been tested on Windows '95 or Windows 3.1 with
-Win32s.  For general information on Python, see http://www.python.org/.
+Python 1.4beta3 for Windows NT 3.5 and Windows '95, with Tcl/Tk
+support.  The installation has not been tested on Windows 3.1 with
+Win32s.  For general information on Python, see
+http://www.python.org/.
 
 To install:
 
 Unzip the archive in the root of a file system with enough space.  It
 will create a directory \Python1.4b3 containing subdirectories Bin and
-Lib and files setup.bat and setup.py.  (If you don't have a zip
-program that supports long filenames, get the file winzip95.exe and
-install it -- this is WinZip 6.1 for 32-bit Windows systems.)
+Lib and some files, including setup.bat, setup.py, uninstall.bat, and
+uninstall.py.  (If you don't have a zip program that supports long
+filenames, get the file winzip95.exe and install it -- this is WinZip
+6.1 for 32-bit Windows systems.)
 
 Run the SETUP.BAT file found in directory just created.  When it is
 done, press Enter.
@@ -35,6 +37,10 @@ environment variables.  E.g. if you installed Tcl/Tk in C:\TCL (the
 default suggested by the installer), set TCL_LIBRARY to
 "C:\TCL\lib\tcl7.5" and set TK_LIBRARY to "C:\TCL\lib\tk4.1".
 
+On Windows '95, you also need to add the directory "C:\TCL\bin" (or
+whereever the Tcl bin directory ended up) to the PATH environment
+variable.  (Sorry, I don't know how to do this myself :-( )
+
 Once Tcl/Tk is installed, you should be able to type the following
 commands in Python:
 
@@ -44,6 +50,16 @@ commands in Python:
 This creates a simple test dialog box (you may have to move the Python
 window a bit to see it).  Click on OK to get the Python prompt back.
 
-August 30, 1996
+To uninstall:
+
+Run the batch file UNINSTALL.BAT.  This will run the Python script
+uninstall.py, which undoes the registry additions and removes most
+installed files.  The batch file then proceed to remove some files
+that the Python script can't remove (because it's using them).  The
+batch file ends with an error because it deletes itself.  Hints on how
+to avoid this (and also on how to remove the installation directory
+itself) are gracefully accepted.
+
+September 3, 1996
 
 --Guido van Rossum (home page: http://www.python.org/~guido/)

PC/setup_nt/setup.py

@@ -1,4 +1,4 @@
-"""Setup script for Windows NT 3.5 until we have a proper installer.
+"""Setup script for Windows NT 3.5 and Windows 95.
 
 Run this with the current directory set to the Python ``root''.
 """
@@ -171,9 +171,24 @@ def listtree(handle, level=0):
 #listtree(pythonhandle)
 win32api.RegCloseKey(pythonhandle)
 
+print "Registering uninstaller..."
+pwd = nt.getcwd()
+uninstaller = '"%s\\uninstall.bat" "%s"' % (pwd, pwd)
+uninstallkey = \
+ "Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Python"+sys.winver
+try:
+    uihandle = win32api.RegOpenKey(roothandle, uninstallkey)
+except win32api.error, msg:
+    uihandle = win32api.RegCreateKey(roothandle, uninstallkey)
+win32api.RegSetValueEx(uihandle, "DisplayName", None, win32con.REG_SZ,
+		       "Python "+sys.winver)
+win32api.RegSetValueEx(uihandle, "UninstallString", None, win32con.REG_SZ,
+		       uninstaller)
+win32api.RegCloseKey(uihandle)
+
 print "Registering Python Interpreter as shell for *.py files..."
 pwd = nt.getcwd()
-interpreter = '"' + pwd + '\\Bin\\python.exe" -i %1'
+interpreter = '"%s\\Bin\\python.exe" -i "%%1"' % pwd
 print "Interpreter command is", interpreter
 root = win32con.HKEY_CLASSES_ROOT
 sz = win32con.REG_SZ
@@ -227,6 +242,8 @@ def listtree(handle, level=0):
         Get a handle for an existing subdirectory
     RegCreateKey(handle, keypath) -> handle
         Get a handle for a new subdirectory
+    RegDeleteKey(handle, key)
+        Delete the given subdirectory -- must be empty
     RegCloseKey(handle)
         Close a handle
     RegGetValue(handle, subkey) -> string

PC/setup_nt/uninstall.bat

@@ -0,0 +1,11 @@
+cd "%1"
+bin\python.exe uninstall.py
+del lib\win\*.pyc
+del lib\win\*.pyd
+del lib\win\*.py
+rd lib\win
+rd lib
+del bin\*.exe
+del bin\*.dll
+rd bin
+del uninstall.*

PC/setup_nt/uninstall.py

@@ -0,0 +1,78 @@
+"""Uninstaller for Windows NT 3.5 and Windows 95.
+
+Actions:
+
+1. Remove our entries from the Registry:
+   - Software\Python\PythonCore\<winver>
+   - Software\Microsoft\Windows\CurrentVersion\Uninstall\Python<winver>
+   (Should we also remove the entry for .py and Python.Script?)
+
+2. Remove the installation tree -- this is assumed to be the directory
+   whose path is both os.path.dirname(sys.argv[0]) and sys.path[0]
+
+"""
+
+import sys
+import nt
+import os
+import win32api
+import win32con
+
+def rmkey(parent, key, level=0):
+    sep = "    "*level
+    try:
+	handle = win32api.RegOpenKey(parent, key)
+    except win32api.error, msg:
+	print sep + "No key", `key`
+	return
+    print sep + "Removing key", key
+    while 1:
+	try:
+	    subkey = win32api.RegEnumKey(handle, 0)
+	except win32api.error, msg:
+	    break
+	rmkey(handle, subkey, level+1)
+    win32api.RegCloseKey(handle)
+    win32api.RegDeleteKey(parent, key)
+    print sep + "Done with", key
+
+roothandle = win32con.HKEY_LOCAL_MACHINE
+pythonkey = "Software\\Python\\PythonCore\\" + sys.winver
+rmkey(roothandle, pythonkey)
+uninstallkey = \
+ "Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Python"+sys.winver
+rmkey(roothandle, uninstallkey)
+
+def rmtree(dir, level=0):
+    sep = "    "*level
+    print sep+"rmtree", dir
+    for name in os.listdir(dir):
+	if level == 0 and \
+	   os.path.normcase(name) == os.path.normcase("uninstall.bat"):
+	    continue
+	fn = os.path.join(dir, name)
+	if os.path.isdir(fn):
+	    rmtree(fn, level+1)
+	else:
+	    try:
+		os.remove(fn)
+	    except os.error, msg:
+		print sep+"  can't remove", `fn`, msg
+	    else:
+		print sep+"  removed", `fn`
+    try:
+	os.rmdir(dir)
+    except os.error, msg:
+	print sep+"can't remove directory", `dir`, msg
+    else:
+	print sep+"removed directory", `dir`	
+
+pwd = os.getcwd()
+scriptdir = os.path.normpath(os.path.join(pwd, os.path.dirname(sys.argv[0])))
+pathdir = os.path.normpath(os.path.join(pwd, sys.path[0]))
+if scriptdir == pathdir:
+    rmtree(pathdir)
+else:
+    print "inconsistend script directory, not removing any files."
+    print "script directory =", `scriptdir`
+    print "path directory =", `pathdir`