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-rw-r--r--Lib/multiprocessing/forking.py10
1 files changed, 9 insertions, 1 deletions
diff --git a/Lib/multiprocessing/forking.py b/Lib/multiprocessing/forking.py
index d2a3208453..8ddddb60b5 100644
--- a/Lib/multiprocessing/forking.py
+++ b/Lib/multiprocessing/forking.py
@@ -459,12 +459,20 @@ def prepare(data):
process.ORIGINAL_DIR = data['orig_dir']
if 'main_path' in data:
+ # XXX (ncoghlan): The following code makes several bogus
+ # assumptions regarding the relationship between __file__
+ # and a module's real name. See PEP 302 and issue #10845
main_path = data['main_path']
main_name = os.path.splitext(os.path.basename(main_path))[0]
if main_name == '__init__':
main_name = os.path.basename(os.path.dirname(main_path))
- if main_name != 'ipython':
+ if main_name == '__main__':
+ main_module = sys.modules['__main__']
+ main_module.__file__ = main_path
+ elif main_name != 'ipython':
+ # Main modules not actually called __main__.py may
+ # contain additional code that should still be executed
import imp
if main_path is None: