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What's a correct and good way to implement __hash__()?
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Get name of current script in Python
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651
You can use __file__ to get the name of the current file. When used in the main module, this i...
Pandas selecting by label sometimes return Series, sometimes returns DataFrame
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answered Dec 4 '13 at 19:36
Dan AllanDan Allan
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How does the @property decorator work in Python?
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Boris
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answered Jun 26 '13 at 20:54
Martijn Pieters♦...
Why does Python use 'magic methods'?
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64
AFAIK, len is special in this respect and has historical roots.
Here's a quote from the FAQ:
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Why is early return slower than else?
...se():
>>> T(lambda : without_else()).repeat()
[0.42015745017874906, 0.3188967452567226, 0.31984281521812363]
>>> T(lambda : with_else()).repeat()
[0.36009842032996175, 0.28962249392031936, 0.2927151355828528]
>>> T(lambda : without_else(True)).repeat()
[0.3170972847107691...
Multiple columns index when using the declarative ORM extension of sqlalchemy
...ave to declare it, everything works the same (make sure you're on recent 0.6 or 0.7 for the declarative A.a wrapper to be interpreted as a Column after the class declaration is complete):
class A(Base):
__tablename__ = 'table_A'
id = Column(Integer, primary_key=True)
a = Column(String(3...
Is gcc 4.8 or earlier buggy about regular expressions?
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edited Sep 28 '15 at 23:06
Lightness Races in Orbit
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Using OR in SQLAlchemy
...ice', 'Bob', 'Carl')))
– robru
Aug 26 '15 at 20:21
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@Robru's advice is unnecessarily inefficien...