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Introduce importlib.abc. The module contains various ABCs related to imports

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(mostly stuff specified by PEP 302). There are two ABCs, PyLoader and
PyPycLoader, which help with implementing source and source/bytecode loaders by
implementing load_module in terms of other methods. This removes a lot of
gritty details loaders typically have to worry about.
This commit is contained in:
Brett Cannon 2009-03-09 03:35:50 +00:00
parent aa1c8d8899
commit 2a922ed6ad
9 changed files with 739 additions and 171 deletions
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10
Lib/importlib/_bootstrap.py
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@ -383,14 +383,8 @@ class PyPycLoader(PyLoader):
def load_module(self, module):
"""Load a module from source or bytecode."""
name = module.__name__
try:
source_path = self.source_path(name)
except ImportError:
source_path = None
try:
bytecode_path = self.bytecode_path(name)
except ImportError:
bytecode_path = None
source_path = self.source_path(name)
bytecode_path = self.bytecode_path(name)
# get_code can worry about no viable paths existing.
module.__file__ = source_path or bytecode_path
return self._load_module(module)