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'''Used by test_import_jy/test_getattr_module'''
import sys
class anygui:
__all__ = ['Window'] # Etc...
def __init__(self):
self.__backend = None
self.__backends = ['msw', 'x', 'mac', 'wx', 'tk', 'java']
def __try_to_get(self, modulename):
import imp
try:
module = imp.find_module(modulename)
except (IOError, ImportError, AttributeError, AssertionError):
return None
else:
return module
def __import_backend(self, wishlist):
candidates = self.__backends[:]
for wish in wishlist:
if wish in candidates:
candidates.remove(wish)
else:
wishlist.remove(wish)
candidates = wishlist + candidates
for name in candidates:
backend = self.__try_to_get('%sgui' % name)
if not backend:
raise Exception, 'not able to import any GUI backends'
self.__backend = backend
def __getattr__(self, name):
if not self.__backend:
self.__import_backend(self.__dict__.get('wishlist', []))
return self.__backend.__dict__[name]
sys.modules[__name__] = anygui()
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