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python's re: return True if string contains regex pattern
...z) and want to know which is a more efficient way to do this, should I use python's 'xyz' in given_text or use re.compile(r'xyz').search(given_text) ?
– bawejakunal
May 4 '16 at 9:01
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Why is '+' not understood by Python sets?
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Python sets don't have an implementation for the + operator.
You can use | for set union and & for set intersection.
Sets do implement - as set difference. You can also use ^ for symmetric set difference (i.e., it will ...
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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Convert a RGB Color Value to a Hexadecimal String
...teger.valueOf(color.getRGB() & 0x00FFFFFF));
– Stéphane Millien
Feb 12 at 18:21
This results in class java.util.I...
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)
13....
How do I get python's pprint to return a string instead of printing?
...gin', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f521532%2fhow-do-i-get-pythons-pprint-to-return-a-string-instead-of-printing%23new-answer', 'question_page');
}
);
Post as a guest
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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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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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What are some common uses for Python decorators? [closed]
While I like to think of myself as a reasonably competent Python coder, one aspect of the language I've never been able to grok is decorators.
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