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221 lines
8.5 KiB
Python
221 lines
8.5 KiB
Python
#!/usr/bin/env python
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###
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# Copyright (c) 2002, Jeremiah Fincher
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions, and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions, and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the author of this software nor the name of
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# contributors to this software may be used to endorse or promote products
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# derived from this software without specific prior written consent.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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###
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"""
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Module for general worldly stuff, like global variables and whatnot.
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"""
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import fix
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import os
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import gc
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import time
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import types
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import atexit
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try:
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import msvcrt
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except ImportError:
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pass
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import conf
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import debug
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startedAt = 0.0
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threadsSpawned = 0
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commandsProcessed = 0
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###
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# End Global Values.
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###
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try:
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ignore(ircs)
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except NameError:
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ircs = []
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try:
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ignore(flushers)
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except NameError:
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flushers = [] # A periodic function will flush all these.
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def flush():
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"""Flushes all the registered flushers."""
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for f in flushers:
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f()
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try:
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ignore(tempvars)
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except NameError:
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tempvars = {} # A storage place for temporary variables that need to be
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# globally accessible.
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def upkeep(): # Function to be run on occasion to do upkeep stuff.
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"""Does upkeep (like flushing, garbage collection, etc.)"""
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collected = gc.collect()
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if os.name == 'nt':
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try:
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msvcrt.heapmin()
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except IOError: # Win98 sux0rs!
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pass
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if gc.garbage:
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debug.msg('Uncollectable garbage: %s' % gc.garbage, 'normal')
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if 'noflush' not in tempvars:
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flush()
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msg = '%s upkeep ran.' % time.strftime(conf.logTimestampFormat)
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debug.msg(msg, 'verbose')
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return collected
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atexit.register(upkeep)
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'''
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def superReload(oldmodule):
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###
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# So here is how this baby works:
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# Reload the module.
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# Iterate through the old module, finding classes and functions that are
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# also in the new module.
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# Add an __getattribute__ or __getattr__ method to those classes that are
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# present in the new module. This method will, when called, change
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# the __class__ of the instance to point to the new class.
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# Change the func_code, func_defaults, and func_doc of any functions or
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# methods or generators we run across, just in case someone is holding
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# a reference to them instead of calling them by name.
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###
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"""Reload a module and make objects auto-update."""
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# reload(module) modifies module in-place, so we need a copy of its
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# __dict__ to iterate through.
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olddict = copy.copy(oldmodule.__dict__)
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newmodule = reload(oldmodule)
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newdict = newmodule.__dict__
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for (name, oldvalue) in olddict.iteritems():
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if name in newdict:
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newvalue = newdict[name]
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oldtype = type(oldvalue)
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# We have to pass in newvalue because of Python scoping.
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def updater(self, s, newvalue=newvalue):
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# This function is to be an __getattr__ or __getattribute__.
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try:
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self.__class__ = newvalue
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except:
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debug.recoverableException()
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try:
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del self.__class__.__getattribute__
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except AttributeError:
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del self.__class__.__getattr__
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return getattr(self, s)
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if oldtype == types.TypeType and \
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oldvalue.__module__ == newmodule.__name__:
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# New-style classes support __getattribute__, which is
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# called on *any* attribute access, so they get updated
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# the first time they are used after a reload.
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if not (issubclass(oldvalue, str) or \
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issubclass(oldvalue, long) or \
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issubclass(oldvalue, tuple)):
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oldvalue.__getattribute__ = updater
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elif oldtype == types.ClassType and\
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oldvalue.__module__ == newmodule.__name__:
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# Old-style classes can only use getattr, so they might not
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# update right away. Hopefully they will, but to solve
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# this problem I just use new-style classes.
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oldvalue.__getattr__ = updater
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elif oldtype == type(newvalue):
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if oldtype == types.FunctionType or\
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oldtype == types.GeneratorType:
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oldvalue.func_code = newvalue.func_code
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oldvalue.func_defaults = newvalue.func_defaults
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oldvalue.func_doc = newvalue.func_doc
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elif oldtype == types.MethodType:
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oldfunc = oldvalue.im_func
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newfunc = newvalue.im_func
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oldfunc.func_code = newfunc.func_code
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oldfunc.func_defaults = newfunc.func_defaults
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oldfunc.func_doc = newfunc.func_doc
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# Update the linecache, so tracebacks show the proper lines.
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linecache.checkcache()
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return newmodule
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'''
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try:
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# This makes the module reload properly; we don't want to lose oldobjects
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# on reload.
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oldobjects
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except NameError:
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oldobjects = {}
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def superReload(module):
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"""Reloads a module hardcore. But kinda broken -- don't use it."""
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def updateFunction(old, new, attrs):
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"""Update all attrs in old to the same attrs in new."""
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for name in attrs:
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setattr(old, name, getattr(new, name))
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for (name, object) in module.__dict__.iteritems():
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# For every attribute of the old module, keep the object.
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key = (module.__name__, name)
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oldobjects.setdefault(key, []).append(object)
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module = reload(module)
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for name, newobj in module.__dict__.iteritems():
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# For every attribute in the new module...
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key = (module.__name__, name)
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if key in oldobjects: # If the same attribute was in the old module...
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for oldobj in oldobjects[key]:
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# Give it the new attributes :)
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if type(newobj) == types.ClassType:
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toRemove = []
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for k in oldobj.__dict__:
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if k not in newobj.__dict__:
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toRemove.append(k)
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for k in toRemove:
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del oldobj.__dict__[k]
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oldobj.__dict__.update(newobj.__dict__)
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# elif type(newobj) == types.TypeType:
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# if hasattr(oldobj, '__dict__'):
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# oldobj.__dict__.update(newobj.__dict__)
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elif type(newobj) == types.FunctionType:
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updateFunction(oldobj, newobj, ('func_code',
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'func_defaults',
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'func_doc'))
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elif type(newobj) == types.MethodType:
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updateFunction(oldobj.im_func, newobj.im_func,
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('func_code', 'func_defaults', 'func_doc'))
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return module
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#################################################
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#################################################
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#################################################
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## Don't even *think* about messing with this. ##
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#################################################
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#################################################
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#################################################
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startup = False
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testing = False
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# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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