Apply pandas function to column to create multiple new columns?
How to do this in pandas:
python
Python strings and integer concatenation
TypeError: unsupported operand type(s) for +: ‘int’ and ‘str’
Generating permutations with repetitions
I know about itertools, but it seems it can only generate permutations without repetitions.
“UnboundLocalError: local variable referenced before assignment” after an if statement
I have also tried searching for the answer but I don’t understand the answers to other people’s similar problems…
‘Webdrivers’ executable may have wrong permissions. Please see https://sites.google.com/a/chromium.org/chromedriver/home
I’ve looked around checked both documentations and have found no answer.
How to execute Python scripts in Windows?
I have a simple script blah.py (using Python 2):
How to escape os.system() calls?
When using os.system() it’s often necessary to escape filenames and other arguments passed as parameters to commands. How can I do this? Preferably something that would work on multiple operating systems/shells but in particular for bash.
Retrieving parameters from a URL
Given a URL like the following, how can I parse the value of the query parameters? For example, in this case I want the value of some_key .
difference between variables inside and outside of __init__()
Is there any difference at all between these classes besides the name?