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How do I detect whether a Python variable is a function?
I have a variable, x , and I want to know whether it is pointing to a function or not.
25 Answers
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Is there a difference between “==” and “is”?
...> b == a
True
# Make a new copy of list `a` via the slice operator,
# and assign it to variable `b`
>>> b = a[:]
>>> b is a
False
>>> b == a
True
In your case, the second test only works because Python caches small integer objects, which is an implementation detail...
remove None value from a list without removing the 0 value
...mbda x: x is not None, L) -- You could get rid of the lambda using partial and operator.is_not I think, but it's probably not worth it since the list-comp is so much cleaner.
– mgilson
Apr 19 '13 at 3:36
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how to change any data type into a string in python
...mystring = repr(myvariable) # '4'
This is called "conversion" in python, and is quite common.
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How can I recover the return value of a function passed to multiprocessing.Process?
...m each process, where one value is the actual return value you care about, and the other is a unique identifier from the process. But I also wonder why you need to know which process is returning which value. If that what you actually need to know about the process, or do you need to correlate betwe...
Python module for converting PDF to text [closed]
...n Activestate which uses pypdf but the text generated had no space between and was of no use.
13 Answers
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What is the difference between old style and new style classes in Python?
What is the difference between old style and new style classes in Python? When should I use one or the other?
8 Answers
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Convert nested Python dict to object?
...nt way to get data using attribute access on a dict with some nested dicts and lists (i.e. javascript-style object syntax).
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How to get the return value from a thread in python?
...m) for param in param_list] The order will be maintained, and exiting the with will allow result collection. [f.result() for f in futures]
– jayreed1
Jun 4 at 21:29
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How do I check for C++11 support?
...amed __cplusplus that C++ compilers should set to the version of the C++ standard supported see this
#if __cplusplus <= 199711L
#error This library needs at least a C++11 compliant compiler
#endif
It is set to 199711L in Visual Studio 2010 SP1, but I do not know if vendors will be so bold to...