How to read/process command line arguments?
I am originally a C programmer. I have seen numerous tricks and “hacks” to read many different arguments.
Python
What is the best way to implement nested dictionaries?
I have a data structure which essentially amounts to a nested dictionary. Let’s say it looks like this:
Split (explode) pandas dataframe string entry to separate rows
I have a pandas dataframe in which one column of text strings contains comma-separated values. I want to split each CSV field and create a new row per entry (assume that CSV are clean and need only be split on ‘,’). For example, a should become b:
Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
I have a data frame df and I use several columns from it to groupby:
Meaning of @classmethod and @staticmethod for beginner?
when should I use them, why should I use them, and how should I use them?
Multiple assignment and evaluation order in Python
What is the difference between the following Python expressions:
Is it Pythonic to use list comprehensions for just side effects?
Think about a function that I’m calling for its side effects, not return values (like printing to screen, updating GUI, printing to a file, etc.).
Convert list of dictionaries to a pandas DataFrame
I have a list of dictionaries like this:
How to move a file in Python?
How would I do the equivalent of mv src/* dest/ in Python?
Threading pool similar to the multiprocessing Pool?
Is there a Pool class for worker threads, similar to the multiprocessing module’s Pool class?