[Python-checkins] cpython: Rename importlib.util.ModuleManager to module_to_load so that the name
brett.cannon
python-checkins at python.org
Thu May 30 23:31:56 CEST 2013
http://hg.python.org/cpython/rev/6ace4133c1c0
changeset: 83988:6ace4133c1c0
user: Brett Cannon <brett at python.org>
date: Thu May 30 17:31:47 2013 -0400
summary:
Rename importlib.util.ModuleManager to module_to_load so that the name
explains better what the context manager is providing.
files:
Doc/library/importlib.rst | 13 +-
Lib/importlib/_bootstrap.py | 11 +-
Lib/importlib/util.py | 2 +-
Lib/test/test_importlib/test_util.py | 14 +-
Misc/NEWS | 4 +-
Python/importlib.h | 7035 +++++++------
6 files changed, 3550 insertions(+), 3529 deletions(-)
diff --git a/Doc/library/importlib.rst b/Doc/library/importlib.rst
--- a/Doc/library/importlib.rst
+++ b/Doc/library/importlib.rst
@@ -789,12 +789,13 @@
.. versionadded:: 3.3
-.. class:: ModuleManager(name)
+.. function:: module_to_load(name)
- A :term:`context manager` which provides the module to load. The module will
- either come from :attr:`sys.modules` in the case of reloading or a fresh
- module if loading a new module. Proper cleanup of :attr:`sys.modules` occurs
- if the module was new and an exception was raised.
+ Returns a :term:`context manager` which provides the module to load. The
+ module will either come from :attr:`sys.modules` in the case of reloading or
+ a fresh module if loading a new module. Proper cleanup of
+ :attr:`sys.modules` occurs if the module was new and an exception was
+ raised.
.. versionadded:: 3.4
@@ -823,7 +824,7 @@
in :data:`sys.modules` then it is left alone.
.. note::
- :class:`ModuleManager` subsumes the module management aspect of this
+ :func:`module_to_load` subsumes the module management aspect of this
decorator.
.. versionchanged:: 3.3
diff --git a/Lib/importlib/_bootstrap.py b/Lib/importlib/_bootstrap.py
--- a/Lib/importlib/_bootstrap.py
+++ b/Lib/importlib/_bootstrap.py
@@ -484,7 +484,8 @@
print(message.format(*args), file=sys.stderr)
-class ModuleManager:
+# Written as a class only because contextlib is not available.
+class _ModuleManager:
"""Context manager which returns the module to be loaded.
@@ -516,6 +517,12 @@
del sys.modules[self._name]
+def module_to_load(name):
+ """Return a context manager which provides the module object to load."""
+ # Hiding _ModuleManager behind a function for better naming.
+ return _ModuleManager(name)
+
+
def set_package(fxn):
"""Set __package__ on the returned module."""
def set_package_wrapper(*args, **kwargs):
@@ -559,7 +566,7 @@
"""
def module_for_loader_wrapper(self, fullname, *args, **kwargs):
- with ModuleManager(fullname) as module:
+ with module_to_load(fullname) as module:
module.__loader__ = self
try:
is_package = self.is_package(fullname)
diff --git a/Lib/importlib/util.py b/Lib/importlib/util.py
--- a/Lib/importlib/util.py
+++ b/Lib/importlib/util.py
@@ -1,6 +1,6 @@
"""Utility code for constructing importers, etc."""
-from ._bootstrap import ModuleManager
+from ._bootstrap import module_to_load
from ._bootstrap import module_for_loader
from ._bootstrap import set_loader
from ._bootstrap import set_package
diff --git a/Lib/test/test_importlib/test_util.py b/Lib/test/test_importlib/test_util.py
--- a/Lib/test/test_importlib/test_util.py
+++ b/Lib/test/test_importlib/test_util.py
@@ -7,7 +7,7 @@
import unittest
-class ModuleManagerTests(unittest.TestCase):
+class ModuleToLoadTests(unittest.TestCase):
module_name = 'ModuleManagerTest_module'
@@ -19,7 +19,7 @@
# Test a new module is created, inserted into sys.modules, has
# __initializing__ set to True after entering the context manager,
# and __initializing__ set to False after exiting.
- with util.ModuleManager(self.module_name) as module:
+ with util.module_to_load(self.module_name) as module:
self.assertIn(self.module_name, sys.modules)
self.assertIs(sys.modules[self.module_name], module)
self.assertTrue(module.__initializing__)
@@ -28,19 +28,19 @@
def test_new_module_failed(self):
# Test the module is removed from sys.modules.
try:
- with util.ModuleManager(self.module_name) as module:
+ with util.module_to_load(self.module_name) as module:
self.assertIn(self.module_name, sys.modules)
raise exception
except Exception:
self.assertNotIn(self.module_name, sys.modules)
else:
- self.fail('importlib.util.ModuleManager swallowed an exception')
+ self.fail('importlib.util.module_to_load swallowed an exception')
def test_reload(self):
# Test that the same module is in sys.modules.
created_module = imp.new_module(self.module_name)
sys.modules[self.module_name] = created_module
- with util.ModuleManager(self.module_name) as module:
+ with util.module_to_load(self.module_name) as module:
self.assertIs(module, created_module)
def test_reload_failed(self):
@@ -48,12 +48,12 @@
created_module = imp.new_module(self.module_name)
sys.modules[self.module_name] = created_module
try:
- with util.ModuleManager(self.module_name) as module:
+ with util.module_to_load(self.module_name) as module:
raise Exception
except Exception:
self.assertIn(self.module_name, sys.modules)
else:
- self.fail('importlib.util.ModuleManager swallowed an exception')
+ self.fail('importlib.util.module_to_load swallowed an exception')
class ModuleForLoaderTests(unittest.TestCase):
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -103,8 +103,8 @@
- Issue #18070: Have importlib.util.module_for_loader() set attributes
unconditionally in order to properly support reloading.
-- Add importlib.util.ModuleManager as a context manager to provide the proper
- module object to load.
+- Add importlib.util.module_to_load to return a context manager to provide the
+ proper module object to load.
- Issue #18025: Fixed a segfault in io.BufferedIOBase.readinto() when raw
stream's read() returns more bytes than requested.
diff --git a/Python/importlib.h b/Python/importlib.h
--- a/Python/importlib.h
+++ b/Python/importlib.h
[stripped]
--
Repository URL: http://hg.python.org/cpython
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