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Issue #23731: Implement PEP 488.

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The concept of .pyo files no longer exists. Now .pyc files have an
optional `opt-` tag which specifies if any extra optimizations beyond
the peepholer were applied.
This commit is contained in:
Brett Cannon 2015-04-13 14:21:02 -04:00
parent a63cc21234
commit f299abdafa
56 changed files with 4731 additions and 4621 deletions
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19
Lib/imp.py
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@ -58,24 +58,23 @@ def new_module(name):
def get_magic():
"""**DEPRECATED**
Return the magic number for .pyc or .pyo files.
Return the magic number for .pyc files.
"""
return util.MAGIC_NUMBER
def get_tag():
"""Return the magic tag for .pyc or .pyo files."""
"""Return the magic tag for .pyc files."""
return sys.implementation.cache_tag
def cache_from_source(path, debug_override=None):
"""**DEPRECATED**
Given the path to a .py file, return the path to its .pyc/.pyo file.
Given the path to a .py file, return the path to its .pyc file.
The .py file does not need to exist; this simply returns the path to the
.pyc/.pyo file calculated as if the .py file were imported. The extension
will be .pyc unless sys.flags.optimize is non-zero, then it will be .pyo.
.pyc file calculated as if the .py file were imported.
If debug_override is not None, then it must be a boolean and is used in
place of sys.flags.optimize.
@ -83,16 +82,18 @@ def cache_from_source(path, debug_override=None):
If sys.implementation.cache_tag is None then NotImplementedError is raised.
"""
return util.cache_from_source(path, debug_override)
with warnings.catch_warnings():
warnings.simplefilter('ignore')
return util.cache_from_source(path, debug_override)
def source_from_cache(path):
"""**DEPRECATED**
Given the path to a .pyc./.pyo file, return the path to its .py file.
Given the path to a .pyc. file, return the path to its .py file.
The .pyc/.pyo file does not need to exist; this simply returns the path to
the .py file calculated to correspond to the .pyc/.pyo file. If path does
The .pyc file does not need to exist; this simply returns the path to
the .py file calculated to correspond to the .pyc file. If path does
not conform to PEP 3147 format, ValueError will be raised. If
sys.implementation.cache_tag is None then NotImplementedError is raised.