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python

How do I find the time difference between two datetime objects in python?

August 21, 2022 by Magenaut

How do I tell the time difference in minutes between two datetime objects?

Categories Python, Q&A Tags date-arithmetic, datetime, python Leave a comment

How to remove list elements in a for loop in Python?

August 21, 2022 by Magenaut

I’m trying to remove items if they match a condition. Then I go to next item.

Categories Python, Q&A Tags list, python Leave a comment

How do I keep Python print from adding newlines or spaces?

August 21, 2022 by Magenaut

first line second line

Categories Python, Q&A Tags formatting, printing, python, python-2.x Leave a comment

Why aren’t python nested functions called closures?

August 21, 2022 by Magenaut

I have seen and used nested functions in Python, and they match the definition of a closure. So why are they called nested functions instead of closures?

Categories Python, Q&A Tags closures, nested-function, python Leave a comment

Django dynamic model fields

August 21, 2022 by Magenaut

I’m working on a multi-tenanted application in which some users can define their own data fields (via the admin) to collect additional data in forms and report on the data. The latter bit makes JSONField not a great option, so instead I have the following solution:

Categories Python, Q&A Tags django, django-custom-manager, django-models, dynamic, python Leave a comment

How to subtract a day from a date?

August 21, 2022 by Magenaut

I have a Python datetime.datetime object. What is the best way to subtract one day?

Categories Python, Q&A Tags date, datetime, python Leave a comment

Converting a Pandas GroupBy output from Series to DataFrame

August 21, 2022 by Magenaut

I’m starting with input data like this

Categories Python, Q&A Tags dataframe, multi-index, pandas, pandas-groupby, python Leave a comment

What are the risks of running ‘sudo pip’?

August 21, 2022 by Magenaut

Occasionally I run into comments or responses that state emphatically that running pip under sudo is “wrong” or “bad”, but there are cases (including the way I have a bunch of tools set up) where it is either much simpler, or even necessary to run it that way.

Categories Python, Q&A Tags pip, python, security, sudo Leave a comment

Python lambda’s binding to local values

August 21, 2022 by Magenaut

The following code spits out 1 twice, but I expect to see 0 and then 1.

Categories Python, Q&A Tags closures, lambda, python Leave a comment

Pandas get topmost n records within each group

August 21, 2022 by Magenaut

Suppose I have pandas DataFrame like this:

Categories Python, Q&A Tags greatest-n-per-group, pandas, python, top-n, window-functions Leave a comment
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  1. michealSmith07 on Is there a way to dynamically refresh the less command?August 21, 2022

    That is a very nice post. I like this post.

  2. anonymous on Fix libwacom9 dependency issue when upgrade DebianJune 27, 2022

    saved my day!! Thanks for the help…

  3. sreedhar on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    Thanks its working

  4. saintnick on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    remove libwacom2 worked for me as well

  5. ranafoul on Fix libwacom9 dependency issue when upgrade DebianApril 22, 2022

    apt remove libwacom2 helped on kali 2022.01. gr8

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