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Windows build: Try clearing the zipimport cache if importing modules in the worker process fails

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This commit is contained in:
Kovid Goyal 2011-03-27 10:59:38 -06:00
parent ae1c331d3c
commit 288905ee34
1 changed files with 10 additions and 1 deletions
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11
src/calibre/utils/ipc/worker.py
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@ -12,6 +12,8 @@ from threading import Thread
from Queue import Queue
from contextlib import closing
from binascii import unhexlify
from zipimport import ZipImportError
from calibre import prints
from calibre.constants import iswindows, isosx
@ -75,7 +77,14 @@ class Progress(Thread):
def get_func(name):
module, func, notification = PARALLEL_FUNCS[name]
module = importlib.import_module(module)
try:
module = importlib.import_module(module)
except ZipImportError:
# Something windows weird happened, try clearing the zip import cache
# incase the zipfile was changed from under us
from zipimport import _zip_directory_cache as zdc
zdc.clear()
module = importlib.import_module(module)
func = getattr(module, func)
return func, notification