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Handle zip & interactive cases in module helpers.

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This commit is contained in:
Ron DuPlain 2012-01-07 17:54:37 -05:00
parent d16491145d
commit a3b30b7e3b
1 changed files with 24 additions and 16 deletions
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40
flask/helpers.py
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@ -495,11 +495,18 @@ def get_root_path(import_name):
Not to be confused with the package path returned by :func:`find_package`.
"""
loader = pkgutil.get_loader(import_name)
if loader is None:
if loader is None or import_name == '__main__':
# import name is not found, or interactive/main module
return os.getcwd()
filepath = os.path.abspath(loader.get_filename(import_name))
# filepath for import_name.py for a module, or __init__.py for a package.
return os.path.dirname(filepath)
# For .egg, zipimporter does not have get_filename until Python 2.7.
if hasattr(loader, 'get_filename'):
filepath = loader.get_filename(import_name)
else:
# Fall back to imports.
__import__(import_name)
filepath = sys.modules[import_name].__file__
# filepath is import_name.py for a module, or __init__.py for a package.
return os.path.dirname(os.path.abspath(filepath))
def find_package(import_name):
@ -512,24 +519,25 @@ def find_package(import_name):
"""
root_mod_name = import_name.split('.')[0]
loader = pkgutil.get_loader(root_mod_name)
if loader is not None:
filename = loader.get_filename(root_mod_name)
if loader is None or import_name == '__main__':
# import name is not found, or interactive/main module
package_path = os.getcwd()
else:
# For .egg, zipimporter does not have get_filename until Python 2.7.
if hasattr(loader, 'get_filename'):
filename = loader.get_filename(root_mod_name)
else:
# zipimporter's loader.archive points to the .egg or .zip
# archive filename is dropped in call to dirname below.
filename = loader.archive
package_path = os.path.abspath(os.path.dirname(filename))
# package_path ends with __init__.py for a package
if loader.is_package(root_mod_name):
package_path = os.path.dirname(package_path)
else:
# support for the interactive python shell
package_path = os.getcwd()
# leave the egg wrapper folder or the actual .egg on the filesystem
test_package_path = package_path
if os.path.basename(test_package_path).endswith('.egg'):
test_package_path = os.path.dirname(test_package_path)
site_parent, site_folder = os.path.split(test_package_path)
site_parent, site_folder = os.path.split(package_path)
py_prefix = os.path.abspath(sys.prefix)
if test_package_path.startswith(py_prefix):
if package_path.startswith(py_prefix):
return py_prefix, package_path
elif site_folder.lower() == 'site-packages':
parent, folder = os.path.split(site_parent)