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Issue #2377: Make importlib the implementation of __import__().

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importlib._bootstrap is now frozen into Python/importlib.h and stored
as _frozen_importlib in sys.modules. Py_Initialize() loads the frozen
code along with sys and imp and then uses _frozen_importlib._install()
to set builtins.__import__() w/ _frozen_importlib.__import__().
This commit is contained in:
Brett Cannon 2012-04-14 14:10:13 -04:00
parent d2cbd90539
commit fd0741555b
38 changed files with 3635 additions and 637 deletions
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7
Lib/test/test_runpy.py
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@ -5,6 +5,7 @@ import os.path
import sys
import re
import tempfile
import importlib
import py_compile
from test.support import (
forget, make_legacy_pyc, run_unittest, unload, verbose, no_tracing,
@ -172,11 +173,13 @@ class RunModuleTest(unittest.TestCase):
self.assertIn("x", d1)
self.assertEqual(d1["x"], 1)
del d1 # Ensure __loader__ entry doesn't keep file open
importlib.invalidate_caches()
__import__(mod_name)
os.remove(mod_fname)
make_legacy_pyc(mod_fname)
unload(mod_name) # In case loader caches paths
if verbose: print("Running from compiled:", mod_name)
importlib.invalidate_caches()
d2 = run_module(mod_name) # Read from bytecode
self.assertIn("x", d2)
self.assertEqual(d2["x"], 1)
@ -196,11 +199,13 @@ class RunModuleTest(unittest.TestCase):
self.assertIn("x", d1)
self.assertTrue(d1["x"] == 1)
del d1 # Ensure __loader__ entry doesn't keep file open
importlib.invalidate_caches()
__import__(mod_name)
os.remove(mod_fname)
make_legacy_pyc(mod_fname)
unload(mod_name) # In case loader caches paths
if verbose: print("Running from compiled:", pkg_name)
importlib.invalidate_caches()
d2 = run_module(pkg_name) # Read from bytecode
self.assertIn("x", d2)
self.assertTrue(d2["x"] == 1)
@ -250,11 +255,13 @@ from ..uncle.cousin import nephew
self.assertIn("sibling", d1)
self.assertIn("nephew", d1)
del d1 # Ensure __loader__ entry doesn't keep file open
importlib.invalidate_caches()
__import__(mod_name)
os.remove(mod_fname)
make_legacy_pyc(mod_fname)
unload(mod_name) # In case the loader caches paths
if verbose: print("Running from compiled:", mod_name)
importlib.invalidate_caches()
d2 = run_module(mod_name, run_name=run_name) # Read from bytecode
self.assertIn("__package__", d2)
self.assertTrue(d2["__package__"] == pkg_name)