How to define a two-dimensional array?
I want to define a two-dimensional array without an initialized length like this:
Python
Why does integer division yield a float instead of another integer?
Consider this division in Python:
cartesian product in pandas
I have two pandas dataframes:
Difference in plotting with different matplotlib versions
A colleague of mine handed me a script that is used to collect data from a database and plot it. When I used the script myself, the plots do not look the same, and it has to do with the version of Matplotlib.
What is the best way to remove accents (normalize) in a Python unicode string?
I have a Unicode string in Python, and I would like to remove all the accents (diacritics).
Fastest way to check if a value exists in a list
What is the fastest way to know if a value exists in a list (a list with millions of values in it) and what its index is?
Get a list of numbers as input from the user
I tried to use input (Py3) /raw_input() (Py2) to get a list of numbers, however with the code
QtDesigner changes will be lost after redesign User Interface
I’m using Qt Designer for design GUI to use in python, after designing my desired UI in Qt Designer, convert it to python code and then I changed generated code to do some action in my python code, but if I changed the UI with Qt Designer and convert it to python code again, I lost my previous changes on my code.
Evaluating a mathematical expression in a string
Warning: Note that this function uses eval, and thus shouldn’t be used on unsanitized input.
Why is “except: pass” a bad programming practice?
I often see comments on other Stack Overflow questions about how the use of except: pass is discouraged. Why is this bad? Sometimes I just don’t care what the errors are and I want to just continue with the code.