It is an old way of specifying !=, that was removed in Python 3. A library old enough to use it likely runs into various other incompatibilities with Python 3 as well: it is probably a good idea to run it through 2to3, which automatically changes this, among many other things. Shar...
Snippets Python What does __all__ mean in Python?What does __all__ mean in Python?In Python, __all__ is a list of strings that defines the names that should be imported when from <module> import * is used. For example: __all__ = ['foo', 'bar'] def foo(): pass def bar(...
there is a function which returns two values, and we only are interested in the second return value. At the mean time, we don't want to create a variable because naming a variable is boring and may causes 'Not used variable' warning. ...
The optional 'arrow' block was absent in Python 2 and I couldn't find any information regarding its meaning in Python 3. It turns out this is correct Python and it's accepted by the interpreter: def f(x) -> 123: return x I thought that this might be some kind of a precondition sy...
0 In python,what does ++ mean? 36 What does ,= mean in python? 1 What is the difference between "=" and "+=" in Python? 0 += in Python when assigning it to third variable 6 Why can I repeat the + in Python arbitrarily in a calculation? 0 What does the plus sign do in th...
https://stackoverflow.com/questions/14379753/what-does-mean-in-python-function-definitions https://www.python.org/dev/peps/pep-3107/ Wow, I missed quite a broad area of knowledge - not only return value annotations, but also parameter annotations. Thank you very much :) ...
You’ve learned what theif __name__ == "__main__"idiom does in Python. It allows you to write code that executes when you run the file as a script, but not when you import it as a module. It’s best to use it when you want to collect user input during a script run and av...
I do understand that Python is a higher-level language. But what difference does it make? I intuitively understand that C++ offers more "control", but what does it mean concretely? Can you give an example of things you can do with C++, but not with Python? ...
As you can see in the example above, the mean methoddoes notbelong to the Python standard library. To use this method, you need to import it from an external module, like “NumPy” or “statistics”. You may need to install these modules, but once that’s done, you can easily integra...
Python won the crown of the programming language of the year in the TIOBE index The index doesn’t indicate the best or most efficient programming language, nor does it measure the amount of code written in a language across the internet. It simply gives us a high-level understanding of res...