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Issue #13959: Deprecate imp.get_suffixes() for new attributes on

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importlib.machinery that provide the suffix details for import.
The attributes were not put on imp so as to compartmentalize
everything importlib needs for setting up imports in
importlib.machinery.

This also led to an indirect deprecation of inspect.getmoduleinfo() as
it directly returned imp.get_suffix's returned tuple which no longer
makes sense.
This commit is contained in:
Brett Cannon 2012-05-11 12:58:42 -04:00
parent 810c64df8f
commit cb66eb0dec
17 changed files with 160 additions and 69 deletions
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24
Lib/importlib/_bootstrap.py
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@ -163,11 +163,14 @@ def new_module(name):
_PYCACHE = '__pycache__'
_SOURCE_SUFFIXES = ['.py'] # _setup() adds .pyw as needed.
SOURCE_SUFFIXES = ['.py'] # _setup() adds .pyw as needed.
_DEBUG_BYTECODE_SUFFIX = '.pyc'
_OPT_BYTECODE_SUFFIX = '.pyo'
_BYTECODE_SUFFIX = _DEBUG_BYTECODE_SUFFIX if __debug__ else _OPT_BYTECODE_SUFFIX
DEBUG_BYTECODE_SUFFIXES = ['.pyc']
OPTIMIZED_BYTECODE_SUFFIXES = ['.pyo']
if __debug__:
BYTECODE_SUFFIXES = DEBUG_BYTECODE_SUFFIXES
else:
BYTECODE_SUFFIXES = OPTIMIZED_BYTECODE_SUFFIXES
def cache_from_source(path, debug_override=None):
"""Given the path to a .py file, return the path to its .pyc/.pyo file.
@ -181,10 +184,13 @@ def cache_from_source(path, debug_override=None):
"""
debug = __debug__ if debug_override is None else debug_override
suffix = _DEBUG_BYTECODE_SUFFIX if debug else _OPT_BYTECODE_SUFFIX
if debug:
suffixes = DEBUG_BYTECODE_SUFFIXES
else:
suffixes = OPTIMIZED_BYTECODE_SUFFIXES
head, tail = _path_split(path)
base_filename, sep, _ = tail.partition('.')
filename = ''.join([base_filename, sep, _TAG, suffix])
filename = ''.join([base_filename, sep, _TAG, suffixes[0]])
return _path_join(head, _PYCACHE, filename)
@ -1147,15 +1153,15 @@ def _setup(sys_module, _imp_module):
setattr(self_module, '_MAGIC_NUMBER', _imp_module.get_magic())
setattr(self_module, '_TAG', _imp.get_tag())
if builtin_os == 'nt':
_SOURCE_SUFFIXES.append('.pyw')
SOURCE_SUFFIXES.append('.pyw')
def _install(sys_module, _imp_module):
"""Install importlib as the implementation of import."""
_setup(sys_module, _imp_module)
extensions = ExtensionFileLoader, _imp_module.extension_suffixes(), False
source = SourceFileLoader, _SOURCE_SUFFIXES, True
bytecode = SourcelessFileLoader, [_BYTECODE_SUFFIX], True
source = SourceFileLoader, SOURCE_SUFFIXES, True
bytecode = SourcelessFileLoader, BYTECODE_SUFFIXES, True
supported_loaders = [extensions, source, bytecode]
sys.path_hooks.extend([FileFinder.path_hook(*supported_loaders)])
sys.meta_path.extend([BuiltinImporter, FrozenImporter, PathFinder])