1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
# Copyright 2009 Noam Yorav-Raphael
#
# This file is part of DreamPie.
#
# DreamPie is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# DreamPie is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with DreamPie. If not, see <http://www.gnu.org/licenses/>.
# This script is run after the win32 installation has finished. it creates
# start menu shortcuts for the available Python installations, as found in the
# registry.
# It can also be run by the user, to create shortcuts to another interpreter.
import sys
import os
from os.path import join, abspath, dirname, basename, exists
from optparse import OptionParser
import _winreg
import ctypes
from ctypes import c_int, c_ulong, c_char_p, c_wchar_p, c_ushort
class OPENFILENAME(ctypes.Structure):
_fields_ = (("lStructSize", c_int),
("hwndOwner", c_int),
("hInstance", c_int),
("lpstrFilter", c_wchar_p),
("lpstrCustomFilter", c_char_p),
("nMaxCustFilter", c_int),
("nFilterIndex", c_int),
("lpstrFile", c_wchar_p),
("nMaxFile", c_int),
("lpstrFileTitle", c_wchar_p),
("nMaxFileTitle", c_int),
("lpstrInitialDir", c_wchar_p),
("lpstrTitle", c_wchar_p),
("flags", c_int),
("nFileOffset", c_ushort),
("nFileExtension", c_ushort),
("lpstrDefExt", c_char_p),
("lCustData", c_int),
("lpfnHook", c_char_p),
("lpTemplateName", c_char_p),
("pvReserved", c_char_p),
("dwReserved", c_int),
("flagsEx", c_int))
MB_YESNO = 0x4
MB_ICONQUESTION = 0x20
MB_ICONWARNING = 0x30
MB_ICONINFORMATION = 0x40
MB_DEFBUTTON2 = 0x100
IDYES = 6
IDNO = 7
from comtypes.client import CreateObject
ws = CreateObject("WScript.Shell")
from comtypes.gen import IWshRuntimeLibrary
_ = lambda s: s
def select_file_dialog():
ofx = OPENFILENAME()
ofx.lStructSize = ctypes.sizeof(OPENFILENAME)
ofx.nMaxFile = 1024
ofx.hwndOwner = 0
ofx.lpstrTitle = "Please select the Python interpreter executable"
opath = u"\0" * 1024
ofx.lpstrFile = opath
filters = ["Executables|*.exe; *.bat", "All Files|*.*"]
ofx.lpstrFilter = unicode("\0".join([f.replace("|", "\0") for f in filters])+"\0\0")
OFN_HIDEREADONLY = 4
ofx.flags = OFN_HIDEREADONLY
is_ok = ctypes.windll.comdlg32.GetOpenFileNameW(ctypes.byref(ofx))
if is_ok:
absPath = opath.replace(u"\0", u"")
return absPath
else:
return None
def get_subkey_names(reg_key):
index = 0
while True:
try:
name = _winreg.EnumKey(reg_key, index)
except EnvironmentError:
break
index += 1
yield name
def find_python_installations():
"""
Return a list with info about installed versions of Python.
For each version, return a tuple with these elements:
0 A string with the interpreter name ('Python 2.7').
1 A string of the absolute path to the interpreter executable.
"""
python_paths = [('Python', r'software\python\pythoncore', 'python.exe'),
('IronPython', r'software\IronPython', 'ipy.exe')]
L = []
for reg_hive in (_winreg.HKEY_LOCAL_MACHINE,
_winreg.HKEY_CURRENT_USER):
for name, path, exec_base in python_paths:
try:
python_key = _winreg.OpenKey(reg_hive, path)
except EnvironmentError:
continue
for version_name in get_subkey_names(python_key):
try:
key = _winreg.OpenKey(python_key, version_name)
install_path = _winreg.QueryValue(key, 'installpath')
pyexec = join(install_path, exec_base)
if os.path.exists(pyexec):
L.append(('%s %s' % (name, version_name), pyexec))
except WindowsError:
# Probably a remain of a previous installation, and a key
# wasn't found.
pass
return L
def create_shortcut(dp_folder, ver_name, pyexec):
"""
Create a shortcut.
dp_folder should be the folder where the shortcuts are created.
The shortcut will be called "DreamPie ({ver_name})".
pyexec is the argument to the dreampie executable - the interpreter.
"""
shortcut_name = "DreamPie (%s).lnk" % ver_name
shortcut_fn = join(dp_folder, shortcut_name)
shortcut = ws.CreateShortcut(shortcut_fn).QueryInterface(IWshRuntimeLibrary.IWshShortcut)
args = []
if hasattr(sys, 'frozen'):
shortcut.TargetPath = join(dirname(abspath(sys.executable)), "dreampie.exe")
else:
shortcut.TargetPath = sys.executable
args.append('"%s"' % join(dirname(abspath(sys.argv[0])), "dreampie.py"))
args.extend(['--hide-console-window', '"%s"' % pyexec])
shortcut.WorkingDirectory = dirname(pyexec)
shortcut.Arguments = ' '.join(args)
shortcut.Save()
def create_self_shortcut(dp_folder):
"""
Create a shortcut for creating shortcuts...
"""
shortcut_name = "Add Interpreter.lnk"
shortcut_fn = join(dp_folder, shortcut_name)
shortcut = ws.CreateShortcut(shortcut_fn).QueryInterface(IWshRuntimeLibrary.IWshShortcut)
args = []
if hasattr(sys, 'frozen'):
shortcut.TargetPath = abspath(sys.executable)
else:
shortcut.TargetPath = abspath(sys.executable)
args.append('"%s"' % abspath(sys.argv[0]))
args.append('--no-self-shortcut')
args.append('"%s"' % dp_folder)
shortcut.Arguments = ' '.join(args)
shortcut.Save()
def create_shortcuts_auto(dp_folder):
py_installs = find_python_installations()
for version_name, pyexec in py_installs:
create_shortcut(dp_folder, version_name, pyexec)
return py_installs
def create_shortcut_ask(dp_folder):
pyexec = select_file_dialog()
if not pyexec:
# Canceled
return
if pyexec.lower().endswith('w.exe'):
pyexec = pyexec[:-len('w.exe')] + '.exe'
if not os.path.exists(pyexec):
ctypes.windll.user32.MessageBoxW(
None, u"pythonw.exe would not run DreamPie, and python.exe not found. "
"You will have to select another executable.", u"DreamPie Installation", MB_ICONWARNING)
return
ver_name = basename(dirname(pyexec))
create_shortcut(dp_folder, ver_name, pyexec)
ctypes.windll.user32.MessageBoxW(
None, u"Shortcut created successfully.", u"DreamPie Installation", MB_ICONINFORMATION)
def main():
usage = "%prog [--auto] [shortcut-dir]"
description = "Create shortcuts for DreamPie"
parser = OptionParser(usage=usage, description=description)
parser.add_option("--no-self-shortcut", action="store_true",
dest="no_self_shortcut",
help="Don't create a shortcut to this script.")
parser.add_option("--auto", action="store_true", dest="auto",
help="Don't ask the user, just automatically create "
"shortcuts for Python installations found in registry")
opts, args = parser.parse_args()
if len(args) == 0:
dp_folder = join(ws.SpecialFolders('Programs'), 'DreamPie')
elif len(args) == 1:
dp_folder, = args
else:
parser.error("Must get at most one argument")
if not exists(dp_folder):
os.mkdir(dp_folder)
if not opts.no_self_shortcut:
create_self_shortcut(dp_folder)
py_installs = create_shortcuts_auto(dp_folder)
if not opts.auto:
if len(py_installs) == 0:
msg_start = u'No Python interpreters found in registry. '
else:
msg_start = (u'I found %d Python interpreter(s) in registry (%s), '
'and updated their shortcuts. ' % (
len(py_installs),
', '.join(ver_name for ver_name, _path in py_installs)))
msg = (msg_start + u'Do you want to manually specify another Python '
'interpreter?')
answer = ctypes.windll.user32.MessageBoxW(
None, msg, u"DreamPie Installation", MB_YESNO | MB_ICONQUESTION | MB_DEFBUTTON2)
if answer == IDYES:
create_shortcut_ask(dp_folder)
if __name__ == '__main__':
main()
|
