Fix an incompatibility between the -i and -m command line switches as reported on python-dev by PJE - runpy.run_module now leaves any changes it makes to the sys module intact after the function terminates
diff --git a/Lib/runpy.py b/Lib/runpy.py
index d2f18d3..8096aac 100755
--- a/Lib/runpy.py
+++ b/Lib/runpy.py
@@ -33,36 +33,21 @@
return run_globals
def _run_module_code(code, init_globals=None,
- mod_name=None, mod_fname=None,
- mod_loader=None, alter_sys=False):
+ mod_name=None, mod_fname=None,
+ mod_loader=None, alter_sys=False):
"""Helper for run_module"""
# Set up the top level namespace dictionary
if alter_sys:
- # Modify sys.argv[0] and sys.module[mod_name]
- temp_module = imp.new_module(mod_name)
- mod_globals = temp_module.__dict__
- saved_argv0 = sys.argv[0]
- restore_module = mod_name in sys.modules
- if restore_module:
- saved_module = sys.modules[mod_name]
+ # Modify sys.argv[0] and sys.modules[mod_name]
sys.argv[0] = mod_fname
- sys.modules[mod_name] = temp_module
- try:
- _run_code(code, mod_globals, init_globals,
- mod_name, mod_fname, mod_loader)
- finally:
- sys.argv[0] = saved_argv0
- if restore_module:
- sys.modules[mod_name] = saved_module
- else:
- del sys.modules[mod_name]
- # Copy the globals of the temporary module, as they
- # may be cleared when the temporary module goes away
- return mod_globals.copy()
+ module = imp.new_module(mod_name)
+ sys.modules[mod_name] = module
+ mod_globals = module.__dict__
else:
# Leave the sys module alone
- return _run_code(code, {}, init_globals,
- mod_name, mod_fname, mod_loader)
+ mod_globals = {}
+ return _run_code(code, mod_globals, init_globals,
+ mod_name, mod_fname, mod_loader)
# This helper is needed due to a missing component in the PEP 302