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Issue 4195: Restore the ability to execute packages with the -m switch (but this time in a way that leaves the import machinery in a valid state). (Original patch by Andi Vajda)

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Nick Coghlan 2009-02-08 01:26:34 +00:00
parent e0820e2ea7
commit d39600e69f
6 changed files with 110 additions and 12 deletions
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18
Lib/runpy.py
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@ -80,13 +80,19 @@ def _get_module_details(mod_name):
if loader is None:
raise ImportError("No module named %s" % mod_name)
if loader.is_package(mod_name):
raise ImportError(("%s is a package and cannot " +
"be directly executed") % mod_name)
if mod_name == "__main__" or mod_name.endswith(".__main__"):
raise ImportError(("Cannot use package as __main__ module"))
try:
pkg_main_name = mod_name + ".__main__"
return _get_module_details(pkg_main_name)
except ImportError, e:
raise ImportError(("%s; %r is a package and cannot " +
"be directly executed") %(e, mod_name))
code = loader.get_code(mod_name)
if code is None:
raise ImportError("No code object available for %s" % mod_name)
filename = _get_filename(loader, mod_name)
return loader, code, filename
return mod_name, loader, code, filename
# XXX ncoghlan: Should this be documented and made public?
@ -101,12 +107,12 @@ def _run_module_as_main(mod_name, set_argv0=True):
__loader__
"""
try:
loader, code, fname = _get_module_details(mod_name)
mod_name, loader, code, fname = _get_module_details(mod_name)
except ImportError as exc:
# Try to provide a good error message
# for directories, zip files and the -m switch
if set_argv0:
# For -m switch, just disply the exception
# For -m switch, just display the exception
info = str(exc)
else:
# For directories/zipfiles, let the user
@ -127,7 +133,7 @@ def run_module(mod_name, init_globals=None,
Returns the resulting top level namespace dictionary
"""
loader, code, fname = _get_module_details(mod_name)
mod_name, loader, code, fname = _get_module_details(mod_name)
if run_name is None:
run_name = mod_name
pkg_name = mod_name.rpartition('.')[0]