/usr/include/wx-3.0/wx/wxPython/i_files/_core_ex.py is in python-wxgtk3.0-dev 3.0.2.0+dfsg-7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Use Python's bool constants if available, make some if not
try:
True
except NameError:
__builtins__.True = 1==1
__builtins__.False = 1==0
def bool(value): return not not value
__builtins__.bool = bool
# workarounds for bad wxRTTI names
__wxPyPtrTypeMap['wxGauge95'] = 'wxGauge'
__wxPyPtrTypeMap['wxSlider95'] = 'wxSlider'
__wxPyPtrTypeMap['wxStatusBar95'] = 'wxStatusBar'
#----------------------------------------------------------------------------
# Load version numbers from __version__... Ensure that major and minor
# versions are the same for both wxPython and wxWidgets.
from __version__ import *
__version__ = VERSION_STRING
assert MAJOR_VERSION == _core_.MAJOR_VERSION, "wxPython/wxWidgets version mismatch"
assert MINOR_VERSION == _core_.MINOR_VERSION, "wxPython/wxWidgets version mismatch"
# This will often be the case in Debian, since wxwidgets3.0 and wxpython3.0 are
# separate source packages, and upstream releases of each happen on different
# schedules.
#if RELEASE_VERSION != _core_.RELEASE_VERSION:
# import warnings
# warnings.warn("wxPython/wxWidgets release number mismatch")
def version():
"""Returns a string containing version and port info"""
if wx.Platform == '__WXMSW__':
port = 'msw'
elif wx.Platform == '__WXMAC__':
if 'wxOSX-carbon' in wx.PlatformInfo:
port = 'osx-carbon'
else:
port = 'osx-cocoa'
elif wx.Platform == '__WXGTK__':
port = 'gtk'
if 'gtk2' in wx.PlatformInfo:
port = 'gtk2'
elif 'gtk3' in wx.PlatformInfo:
port = 'gtk3'
else:
port = '?'
return "%s %s (classic)" % (wx.VERSION_STRING, port)
#----------------------------------------------------------------------------
# Set wxPython's default string<-->unicode conversion encoding from
# the locale, but only if Python's default hasn't been changed. (We
# assume that if the user has customized it already then that is the
# encoding we need to use as well.)
#
# The encoding selected here is used when string or unicode objects
# need to be converted in order to pass them to wxWidgets. Please be
# aware that the default encoding within the same locale may be
# slightly different on different platforms. For example, please see
# http://www.alanwood.net/demos/charsetdiffs.html for differences
# between the common latin/roman encodings.
default = _sys.getdefaultencoding()
if default == 'ascii':
import locale
import codecs
try:
if hasattr(locale, 'getpreferredencoding'):
default = locale.getpreferredencoding()
else:
default = locale.getdefaultlocale()[1]
codecs.lookup(default)
except (ValueError, LookupError, TypeError):
default = _sys.getdefaultencoding()
del locale
del codecs
if default:
wx.SetDefaultPyEncoding(default)
del default
#----------------------------------------------------------------------------
class PyDeadObjectError(AttributeError):
pass
class _wxPyDeadObject(object):
"""
Instances of wx objects that are OOR capable will have their __class__
changed to this class when the C++ object is deleted. This should help
prevent crashes due to referencing a bogus C++ pointer.
"""
reprStr = "wxPython wrapper for DELETED %s object! (The C++ object no longer exists.)"
attrStr = "The C++ part of the %s object has been deleted, attribute access no longer allowed."
def __repr__(self):
if not hasattr(self, "_name"):
self._name = "[unknown]"
return self.reprStr % self._name
def __getattr__(self, *args):
if not hasattr(self, "_name"):
self._name = "[unknown]"
raise PyDeadObjectError(self.attrStr % self._name)
def __nonzero__(self):
return 0
class PyUnbornObjectError(AttributeError):
pass
class _wxPyUnbornObject(object):
"""
Some stock objects are created when the wx._core module is
imported, but their C++ instance is not created until the wx.App
object is created and initialized. These object instances will
temporarily have their __class__ changed to this class so an
exception will be raised if they are used before the C++ instance
is ready.
"""
reprStr = "wxPython wrapper for UNBORN object! (The C++ object is not initialized yet.)"
attrStr = "The C++ part of this object has not been initialized, attribute access not allowed."
def __repr__(self):
#if not hasattr(self, "_name"):
# self._name = "[unknown]"
return self.reprStr #% self._name
def __getattr__(self, *args):
#if not hasattr(self, "_name"):
# self._name = "[unknown]"
raise PyUnbornObjectError(self.attrStr) # % self._name )
def __nonzero__(self):
return 0
#----------------------------------------------------------------------------
def CallAfter(callableObj, *args, **kw):
"""
Call the specified function after the current and pending event
handlers have been completed. This is also good for making GUI
method calls from non-GUI threads. Any extra positional or
keyword args are passed on to the callable when it is called.
:see: `wx.CallLater`
"""
assert callable(callableObj), "callableObj is not callable"
app = wx.GetApp()
assert app is not None, 'No wx.App created yet'
if not hasattr(app, "_CallAfterId"):
app._CallAfterId = wx.NewEventType()
app.Connect(-1, -1, app._CallAfterId,
lambda event: event.callable(*event.args, **event.kw) )
evt = wx.PyEvent()
evt.SetEventType(app._CallAfterId)
evt.callable = callableObj
evt.args = args
evt.kw = kw
wx.PostEvent(app, evt)
#----------------------------------------------------------------------------
class CallLater:
"""
A convenience class for `wx.Timer`, that calls the given callable
object once after the given amount of milliseconds, passing any
positional or keyword args. The return value of the callable is
availbale after it has been run with the `GetResult` method.
If you don't need to get the return value or restart the timer
then there is no need to hold a reference to this object.
:see: `wx.CallAfter`
"""
__RUNNING = set()
def __init__(self, millis, callableObj, *args, **kwargs):
assert callable(callableObj), "callableObj is not callable"
self.millis = millis
self.callable = callableObj
self.SetArgs(*args, **kwargs)
self.runCount = 0
self.running = False
self.hasRun = False
self.result = None
self.timer = None
self.Start()
def Start(self, millis=None, *args, **kwargs):
"""
(Re)start the timer
"""
self.hasRun = False
if millis is not None:
self.millis = millis
if args or kwargs:
self.SetArgs(*args, **kwargs)
self.Stop()
self.timer = wx.PyTimer(self.Notify)
self.timer.Start(self.millis, wx.TIMER_ONE_SHOT)
self.running = True
self.__RUNNING.add(self)
Restart = Start
def Stop(self):
"""
Stop and destroy the timer.
"""
if self.timer is not None:
self.timer.Stop()
self.timer = None
self.__RUNNING.discard(self)
def GetInterval(self):
if self.timer is not None:
return self.timer.GetInterval()
else:
return 0
def IsRunning(self):
return self.timer is not None and self.timer.IsRunning()
def SetArgs(self, *args, **kwargs):
"""
(Re)set the args passed to the callable object. This is
useful in conjunction with Restart if you want to schedule a
new call to the same callable object but with different
parameters.
"""
self.args = args
self.kwargs = kwargs
def HasRun(self):
return self.hasRun
def GetResult(self):
return self.result
def Notify(self):
"""
The timer has expired so call the callable.
"""
if self.callable and getattr(self.callable, 'im_self', True):
self.runCount += 1
self.running = False
self.result = self.callable(*self.args, **self.kwargs)
self.hasRun = True
if not self.running:
# if it wasn't restarted, then cleanup
wx.CallAfter(self.Stop)
Interval = property(GetInterval)
Result = property(GetResult)
class FutureCall(CallLater):
"""A compatibility alias for `CallLater`."""
#----------------------------------------------------------------------------
# Control which items in this module should be documented by epydoc.
# We allow only classes and functions, which will help reduce the size
# of the docs by filtering out the zillions of constants, EVT objects,
# and etc that don't make much sense by themselves, but are instead
# documented (or will be) as part of the classes/functions/methods
# where they should be used.
class __DocFilter:
"""
A filter for epydoc that only allows non-Ptr classes and
functions, in order to reduce the clutter in the API docs.
"""
def __init__(self, globals):
self._globals = globals
def __call__(self, name):
import types
obj = self._globals.get(name, None)
# only document classes and function
if type(obj) not in [type, types.ClassType, types.FunctionType, types.BuiltinFunctionType]:
return False
# skip other things that are private or will be documented as part of somethign else
if name.startswith('_') or name.startswith('EVT') or name.endswith('_swigregister') or name.endswith('Ptr') :
return False
# skip functions that are duplicates of static functions in a class
if name.find('_') != -1:
cls = self._globals.get(name.split('_')[0], None)
methname = name.split('_')[1]
if hasattr(cls, methname) and type(getattr(cls, methname)) is types.FunctionType:
return False
return True
#----------------------------------------------------------------------------
#----------------------------------------------------------------------------
# Import other modules in this package that should show up in the
# "core" wx namespace
from _gdi import *
from _windows import *
from _controls import *
from _misc import *
#----------------------------------------------------------------------------
#----------------------------------------------------------------------------
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