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Tag: python

Python save arbitrarily nested list to CSV

I have a list that is composed of strings, integers, and floats, and nested lists of strings, integer, and floats. Here is an example I want each item of the list written to a line in a CSV file. So, given the above data, the file would look like this: There are lots of resources about how to write a

Create a compress function in Python?

I need to create a function called compress that compresses a string by replacing any repeated letters with a letter and number. My function should return the shortened version of the string. I’ve been able to count the first character but not any others. Ex: Answer Here is a short python implementation…

Disable/Remove argument in argparse

Is it possible to remove or disable an argument in argparse, such that it does not show in the help? How? It is easy to add new arguments: And I know you can override arguments with a new definition by specifying the “resolve” conflict handler: But this still includes arg1 in the help message and …

Celery – No module named five

After updating celery and django-celery to 3.1: I run into this error when starting my server: Using: Django 1.4.21 Python 2.7 Answer Last version of vine is 5.0.0 and fresh push was in 06.09.2020 (yesterday) :), and this version do not have any five.py file. So downgrade vine version to. vine==1.3.0 works fo…

How does the functools cmp_to_key function work?

In Python, both list.sort method and sorted built-in function accepts an optional parameter named key, which is a function that, given an element from the list returns its sorting key. Older Python versions used a different approach using the cmp parameter instead, which is a function that, given two elements…

Python – How to break word into 64bit chunks

I am doing an assignment where I have to institute the Diffie-Hellman key exchange. In order to speed things up I am using bit-operators in Python, and everything is working fine programming wise, but I have to perform a Parity Checksum, and I don’t think I have the proper understanding of what this is …

Web scraping a text() in python

I am having trouble with a web scraping function. The XPath for the two things I am trying to get are The html is I am trying to have a function to loop through each li in tr[5]. The problem I am having is getting the text(). I have tried a number of different variations of this function This specific

Combine (join) networkx Graphs

Say I have two networkx graphs, G and H: What is the best way to join the two networkx graphs? I’d like to preserve the node names (note the common nodes, 2 to 7). When I used nx.disjoint_union(G,H), this did not happen: The H node labels were changed (not what I want). I want to join the graphs at the