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The tilde operator in Python
What's the usage of the tilde operator in Python?
7 Answers
7
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How to toggle a value in Python
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>>> toggle()
'green'
>>> toggle()
'blue'
Note that in Python 3 the next() method was changed to __next__(), so the first line would be now written as toggle = itertools.cycle(['red', 'green', 'blue']).__next__
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How can I create an object and add attributes to it?
I want to create a dynamic object (inside another object) in Python and then add attributes to it.
16 Answers
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Equivalent C++ to Python generator pattern
I've got some example Python code that I need to mimic in C++. I do not require any specific solution (such as co-routine based yield solutions, although they would be acceptable answers as well), I simply need to reproduce the semantics in some manner.
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How do I get python's pprint to return a string instead of printing?
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}
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Web Reference vs. Service Reference
...ed Jan 28 '10 at 21:33
Otávio DécioOtávio Décio
68.9k1414 gold badges152152 silver badges219219 bronze badges
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Limiting floats to two decimal points
...ar floats have 24 bits (8 digits) of precision. The floating point type in Python uses double precision to store the values.
For example,
>>> 125650429603636838/(2**53)
13.949999999999999
>>> 234042163/(2**24)
13.949999988079071
>>> a = 13.946
>>> print(a)
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How to check if a function exists on a SQL database
...answered Sep 21 '15 at 13:18
KapéKapé
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How do I update a Python package?
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You might want to look into a Python package manager like pip. If you don't want to use a Python package manager, you should be able to download M2Crypto and build/compile/install over the old installation.
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Defining private module functions in python
According to http://www.faqs.org/docs/diveintopython/fileinfo_private.html :
9 Answers
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