Mercurial > cpython-lru_cache-weakref

annotate Lib/user.py @ 25838:8540887bcec6 2.2

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Backport of 2.183: Fix memory leak in add_subclass() found by NealN with valgrind.
author Guido van Rossum <guido@python.org>
date Fri, 18 Oct 2002 13:42:21 +0000
parents 86f66061003c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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1 """Hook to allow user-specified customization code to run.
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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2
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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3 As a policy, Python doesn't run user-specified code on startup of
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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4 Python programs (interactive sessions execute the script specified in
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2721c7cc0b27 Lawrence Kesteloot noted: Lib/user.py has a comment that says that the
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5 the PYTHONSTARTUP environment variable if it exists).
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6
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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7 However, some programs or sites may find it convenient to allow users
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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8 to have a standard customization file, which gets run when a program
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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9 requests it. This module implements such a mechanism. A program
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10 that wishes to use the mechanism must execute the statement
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11
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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12 import user
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13
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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14 The user module looks for a file .pythonrc.py in the user's home
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15 directory and if it can be opened, execfile()s it in its own global
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16 namespace. Errors during this phase are not caught; that's up to the
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17 program that imports the user module, if it wishes.
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18
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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19 The user's .pythonrc.py could conceivably test for sys.version if it
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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20 wishes to do different things depending on the Python version.
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21
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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22 """
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23
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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24 import os
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25
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26 home = os.curdir # Default
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53fd42aa3bbf Refinement of home for NT, courtesy Jeff Bauer.
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27 if os.environ.has_key('HOME'):
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28 home = os.environ['HOME']
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29 elif os.name == 'posix':
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30 home = os.path.expanduser("~/")
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31 elif os.name == 'nt': # Contributed by Jeff Bauer
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32 if os.environ.has_key('HOMEPATH'):
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33 if os.environ.has_key('HOMEDRIVE'):
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34 home = os.environ['HOMEDRIVE'] + os.environ['HOMEPATH']
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35 else:
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36 home = os.environ['HOMEPATH']
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37
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38 pythonrc = os.path.join(home, ".pythonrc.py")
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39 try:
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40 f = open(pythonrc)
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41 except IOError:
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42 pass
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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43 else:
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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44 f.close()
43b8c4a696d1 user.py -- when imported, execfile(~/.pythonrc.py).
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45 execfile(pythonrc)