![James Hilliard](/assets/img/avatar_default.png)
This rebases the remaining patches for python 3.9.0 not included in
f26ce57760
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Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
106 lines
4.5 KiB
Diff
106 lines
4.5 KiB
Diff
From e2ea659eac1849db471d3c01a0d0af9d6fca2e9a Mon Sep 17 00:00:00 2001
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From: Christophe Vu-Brugier <cvubrugier@fastmail.fm>
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Date: Wed, 22 Feb 2017 16:48:49 -0800
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Subject: [PATCH] Add importlib fix for PEP 3147 issue
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Python 3 has a new standard for installing .pyc file, called PEP
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3147. Unfortunately, this standard requires both the .py and .pyc
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files to be installed for a Python module to be found. This is quite
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annoying on space-constrained embedded systems, since the .py file is
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technically not required for execution.
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This patch changes cache_from_source() and source_from_cache() in
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importlib to get rid of the "__pycache__" directory.
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This effectively disables PEP 3147 for:
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* The python standard library
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* Packages built with distutils or setuptools
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* Packages built with automake that use the `py-compile` helper
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Signed-off-by: Christophe Vu-Brugier <cvubrugier@fastmail.fm>
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[ Andrey Smirnov: ported to Python 3.6 ]
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Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
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---
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Lib/importlib/_bootstrap_external.py | 44 ++++------------------------
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1 file changed, 5 insertions(+), 39 deletions(-)
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diff --git a/Lib/importlib/_bootstrap_external.py b/Lib/importlib/_bootstrap_external.py
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index 25a3f8c0e0..2cb9a9aa52 100644
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--- a/Lib/importlib/_bootstrap_external.py
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+++ b/Lib/importlib/_bootstrap_external.py
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@@ -313,8 +313,6 @@ def cache_from_source(path, debug_override=None, *, optimization=None):
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a True value is the same as setting 'optimization' to the empty string
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while a False value is equivalent to setting 'optimization' to '1'.
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- If sys.implementation.cache_tag is None then NotImplementedError is raised.
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-
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"""
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if debug_override is not None:
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_warnings.warn('the debug_override parameter is deprecated; use '
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@@ -326,10 +324,7 @@ def cache_from_source(path, debug_override=None, *, optimization=None):
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path = _os.fspath(path)
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head, tail = _path_split(path)
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base, sep, rest = tail.rpartition('.')
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- tag = sys.implementation.cache_tag
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- if tag is None:
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- raise NotImplementedError('sys.implementation.cache_tag is None')
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- almost_filename = ''.join([(base if base else rest), sep, tag])
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+ almost_filename = ''.join([(base if base else rest)])
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if optimization is None:
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if sys.flags.optimize == 0:
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optimization = ''
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@@ -366,46 +361,17 @@ def cache_from_source(path, debug_override=None, *, optimization=None):
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head.lstrip(path_separators),
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filename,
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)
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- return _path_join(head, _PYCACHE, filename)
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+ return _path_join(head, filename)
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def source_from_cache(path):
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"""Given the path to a .pyc. file, return the path to its .py file.
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The .pyc file does not need to exist; this simply returns the path to
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- the .py file calculated to correspond to the .pyc file. If path does
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- not conform to PEP 3147/488 format, ValueError will be raised. If
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- sys.implementation.cache_tag is None then NotImplementedError is raised.
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-
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+ the .py file calculated to correspond to the .pyc file.
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"""
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- if sys.implementation.cache_tag is None:
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- raise NotImplementedError('sys.implementation.cache_tag is None')
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- path = _os.fspath(path)
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- head, pycache_filename = _path_split(path)
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- found_in_pycache_prefix = False
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- if sys.pycache_prefix is not None:
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- stripped_path = sys.pycache_prefix.rstrip(path_separators)
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- if head.startswith(stripped_path + path_sep):
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- head = head[len(stripped_path):]
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- found_in_pycache_prefix = True
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- if not found_in_pycache_prefix:
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- head, pycache = _path_split(head)
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- if pycache != _PYCACHE:
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- raise ValueError(f'{_PYCACHE} not bottom-level directory in '
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- f'{path!r}')
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- dot_count = pycache_filename.count('.')
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- if dot_count not in {2, 3}:
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- raise ValueError(f'expected only 2 or 3 dots in {pycache_filename!r}')
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- elif dot_count == 3:
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- optimization = pycache_filename.rsplit('.', 2)[-2]
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- if not optimization.startswith(_OPT):
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- raise ValueError("optimization portion of filename does not start "
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- f"with {_OPT!r}")
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- opt_level = optimization[len(_OPT):]
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- if not opt_level.isalnum():
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- raise ValueError(f"optimization level {optimization!r} is not an "
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- "alphanumeric value")
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- base_filename = pycache_filename.partition('.')[0]
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+ head, filename = _path_split(path)
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+ base_filename = filename.partition('.')[0]
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return _path_join(head, base_filename + SOURCE_SUFFIXES[0])
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--
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2.25.1
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