cpython/Lib/importlib/test/import_/util.py
Brett Cannon 2c318a1390 Rewrite the code implementing __import__ for importlib. Now it is much simpler
and relies much more on meta path finders to abstract out various parts of
import.

As part of this the semantics for import_module tightened up and now follow
__import__ much more closely (biggest thing is that the 'package' argument must
now already be imported, else a SystemError is raised).
2009-02-07 01:15:27 +00:00

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889 B
Python

import functools
import importlib._bootstrap
using___import__ = False
def import_(*args, **kwargs):
"""Delegate to allow for injecting different implementations of import."""
if using___import__:
return __import__(*args, **kwargs)
#return importlib.Import()(*args, **kwargs)
return importlib._bootstrap._import(*args, **kwargs)
def importlib_only(fxn):
"""Decorator to mark which tests are not supported by the current
implementation of __import__()."""
def inner(*args, **kwargs):
if using___import__:
return
else:
return fxn(*args, **kwargs)
functools.update_wrapper(inner, fxn)
return inner
def mock_path_hook(*entries, importer):
"""A mock sys.path_hooks entry."""
def hook(entry):
if entry not in entries:
raise ImportError
return importer
return hook