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style: Fix Python 2.6 compatibility

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The style checker code needs to disable autojunk when diffing source
files using Python's difflib. Support for this was only introduced in
Python 2.7, which leads to a TypeError exception on older Python
version. This changeset adds a fallback mechanism for old Python
versions.
This commit is contained in:
Andreas Sandberg 2016-04-18 10:31:38 +01:00
parent 39e10ced03
commit f819518158
1 changed files with 6 additions and 2 deletions
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6
util/style/verifiers.py
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@ -57,8 +57,12 @@ from region import *
from file_types import lang_type from file_types import lang_type
def _modified_regions(old, new): def _modified_regions(old, new):
try:
m = SequenceMatcher(a=old, b=new, autojunk=False) m = SequenceMatcher(a=old, b=new, autojunk=False)
except TypeError:
# autojunk was introduced in Python 2.7. We need a fallback
# mechanism to support old Python versions.
m = SequenceMatcher(a=old, b=new)
regions = Regions() regions = Regions()
for tag, i1, i2, j1, j2 in m.get_opcodes(): for tag, i1, i2, j1, j2 in m.get_opcodes():
if tag != "equal": if tag != "equal":