Python 3.7 fix for re.split() in version detection #687
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re.split("\s*") has changed from splitting on 1 or more spaces in Python 3.6
(with a deprecation warning) to splitting on 0 or more spaces in Python 3.7.
In Python 3.7 this means it splits at every character.
With Python 3.6:
python -c "import re; print(re.split('\s*', '#define H5_VERS_MAJOR 1'))"
/opt/conda/lib/python3.6/re.py:212: FutureWarning: split() requires a non-empty pattern match.
return _compile(pattern, flags).split(string, maxsplit)
['#define', 'H5_VERS_MAJOR', '1']
With Python 3.7b3:
python -c "import re; print(re.split('\s*', '#define H5_VERS_MAJOR 1'))"
['', '#', 'd', 'e', 'f', 'i', 'n', 'e', '', 'H', '5', '_', 'V', 'E', 'R', 'S', '_', 'M', 'A', 'J', 'O', 'R', '', '1', '']
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Thanks @mingwandroid |
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re.split("\s*") has changed from splitting on 1 or more spaces in Python 3.6
(with a deprecation warning) to splitting on 0 or more spaces in Python 3.7.
In Python 3.7 this means it splits at every character.
With Python 3.6:
python -c "import re; print(re.split('\s*', '#define H5_VERS_MAJOR 1'))"
/opt/conda/lib/python3.6/re.py:212: FutureWarning: split() requires a non-empty pattern match.
return _compile(pattern, flags).split(string, maxsplit)
['#define', 'H5_VERS_MAJOR', '1']
With Python 3.7b3:
python -c "import re; print(re.split('\s*', '#define H5_VERS_MAJOR 1'))"
['', '#', 'd', 'e', 'f', 'i', 'n', 'e', '', 'H', '5', '', 'V', 'E', 'R', 'S', '', 'M', 'A', 'J', 'O', 'R', '', '1', '']