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Rewrite the code implementing __import__ for importlib. Now it is much simpler

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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).
This commit is contained in:
Brett Cannon 2009-02-07 01:15:27 +00:00
parent 887b3f2625
commit 2c318a1390
9 changed files with 117 additions and 502 deletions
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8
Lib/importlib/test/test_api.py
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@ -1,6 +1,8 @@
import unittest
import importlib
from . import util
import imp
import importlib
import sys
import unittest
class ImportModuleTests(unittest.TestCase):
@ -33,6 +35,7 @@ def test_relative_package_import(self):
relative_name = '.{0}'.format(module_name)
with util.mock_modules(pkg_long_name, absolute_name) as mock:
with util.import_state(meta_path=[mock]):
importlib.import_module(pkg_name)
module = importlib.import_module(relative_name, pkg_name)
self.assertEqual(module.__name__, absolute_name)
@ -44,6 +47,7 @@ def test_absolute_import_with_package(self):
name = '{0}.mod'.format(pkg_name)
with util.mock_modules(pkg_long_name, name) as mock:
with util.import_state(meta_path=[mock]):
importlib.import_module(pkg_name)
module = importlib.import_module(name, pkg_name)
self.assertEqual(module.__name__, name)