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Prevent import of PyQt4 with an ImportError

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This commit is contained in:
Kovid Goyal 2014-08-15 14:08:46 +05:30
parent 12f30851e0
commit 44b77cdb85
1 changed files with 12 additions and 0 deletions
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12
src/calibre/startup.py
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@ -24,6 +24,18 @@ winutil = winutilerror = None
if not _run_once: if not _run_once:
_run_once = True _run_once = True
# Prevent PyQt4 from being loaded
class PyQt4Ban(object):
def find_module(self, fullname, path=None):
if fullname.startswith('PyQt4'):
return self
def load_module(self, fullname):
raise ImportError('Importing PyQt4 is not allowed as calibre uses PyQt5')
sys.meta_path.insert(0, PyQt4Ban())
# #
# Platform specific modules # Platform specific modules
if iswindows: if iswindows: