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# startup.py
#
"The main application startup code for PythonWin."
#
# This does the basic command line handling.
# Keep this as short as possible, cos error output is only redirected if
# this runs OK. Errors in imported modules are much better - the messages go somewhere (not any more :-)
import os
import sys
import win32api
import win32ui
if not sys.argv:
# Initialize sys.argv from commandline. When sys.argv is empty list (
# different from [''] meaning "no cmd line arguments" ), then C
# bootstrapping or another method of invocation failed to initialize
# sys.argv and it will be done here. ( This was a workaround for a bug in
# win32ui but is retained for other situations. )
argv = win32api.CommandLineToArgv(win32api.GetCommandLine())
sys.argv = argv[1:]
if os.getcwd() not in sys.path and "." not in sys.path:
sys.path.insert(0, os.getcwd())
# You may wish to redirect error output somewhere useful if you have startup errors.
# eg, 'import win32traceutil' will do this for you.
# import win32traceutil # Just uncomment this line to see error output!
# An old class I used to use - generally only useful if Pythonwin is running under MSVC
# class DebugOutput:
# softspace=1
# def write(self,message):
# win32ui.OutputDebug(message)
# sys.stderr=sys.stdout=DebugOutput()
# To fix a problem with Pythonwin when started from the Pythonwin directory,
# we update the pywin path to ensure it is absolute.
# If it is indeed relative, it will be relative to our current directory.
# If its already absolute, then this will have no affect.
import pywin
import pywin.framework
pywin.__path__[0] = win32ui.FullPath(pywin.__path__[0])
pywin.framework.__path__[0] = win32ui.FullPath(pywin.framework.__path__[0])
# make a few wierd sys values. This is so later we can clobber sys.argv to trick
# scripts when running under a GUI environment.
moduleName = "pywin.framework.intpyapp"
sys.appargvoffset = 0
sys.appargv = sys.argv[:]
# Must check for /app param here.
if len(sys.argv) >= 2 and sys.argv[0].lower() in ("/app", "-app"):
from . import cmdline
moduleName = cmdline.FixArgFileName(sys.argv[1])
sys.appargvoffset = 2
newargv = sys.argv[sys.appargvoffset :]
# newargv.insert(0, sys.argv[0])
sys.argv = newargv
# Import the application module.
__import__(moduleName)
try:
win32ui.GetApp()._obj_
# This worked - an app already exists - do nothing more
except (AttributeError, win32ui.error):
# This means either no app object exists at all, or the one
# that does exist does not have a Python class (ie, was created
# by the host .EXE). In this case, we do the "old style" init...
from . import app
if app.AppBuilder is None:
raise TypeError("No application object has been registered")
app.App = app.AppBuilder()