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bpo-40495: compileall option to hardlink duplicate pyc files #19901

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Merged
vstinner merged 13 commits into from
May 14, 2020
Merged

bpo-40495: compileall option to hardlink duplicate pyc files #19901

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005e6e0
bpo-40495: compileall option to hardlink duplicate pyc files
frenzymadness May 4, 2020
7f8b63f
Update Misc/NEWS.d/next/Library/2020-05-04-11-20-49.bpo-40495.TyTc2O.rst
frenzymadness May 6, 2020
6a9efa2
Update Doc/library/compileall.rst
frenzymadness May 12, 2020
e1ef909
Update Lib/compileall.py
frenzymadness May 12, 2020
b314c5f
remove debug code
frenzymadness May 12, 2020
e2f3a50
docs update
frenzymadness May 12, 2020
4607d08
use is_hardlink to check inodes instead of repeating code
frenzymadness May 12, 2020
4fb779a
use subTest to parametrize three tests with different combinations of…
frenzymadness May 12, 2020
97b057e
fix tests
frenzymadness May 12, 2020
9ca6eae
Refactor tests
vstinner May 13, 2020
b006361
Updated Whatsnew
frenzymadness May 14, 2020
45259b2
Update Lib/compileall.py
vstinner May 14, 2020
7e92096
Remove duplicated optimization levels
vstinner May 14, 2020
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fix tests
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@frenzymadness
frenzymadness committed May 12, 2020
commit 97b057edc7165492522ba0226cd40296c51c5ec5
9 changes: 8 additions & 1 deletion Lib/test/test_compileall.py
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Original file line number Diff line number Diff line change
Expand Up @@ -390,8 +390,12 @@ def test_hardlink_deduplication_same_bytecode(self):

pycs = {}
for opt_level in opt_combination:
# We need this because importlib.util.cache_from_source
# produces different results when called with
# optimization=0 and without optimization
optimization_kwarg = {"optimization": opt_level} if opt_level > 0 else {}
pycs[opt_level] = importlib.util.cache_from_source(
simple_script, optimization=opt_level
simple_script, **optimization_kwarg
)

compileall.compile_dir(
Expand All @@ -415,6 +419,9 @@ def test_hardlink_deduplication_same_bytecode(self):
for pair in itertools.combinations(opt_combination, 2):
self.assertFalse(self.is_hardlink(pycs[pair[0]], pycs[pair[1]]))

for pyc_file in pycs.values():
os.unlink(pyc_file)

def test_hardlink_deduplication_different_bytecode_all_opt(self):
# "'''string'''\nassert 1" produces a different bytecode for
# all optimization levels
Expand Down