Skip to content

Magenaut

  • Home
  • Topics
    • Notes
    • Tutorial
    • Bug fixing
    • Extension
    • Server
  • Q&A
  • Privacy Policy
  • About

Python

Python Pandas, write DataFrame to fixed-width file (to_fwf?)

August 15, 2022 by Magenaut

I see that Pandas has read_fwf, but does it have something like DataFrame.to_fwf? I’m looking for support for field width, numerical precision, and string justification. It seems that DataFrame.to_csv doesn’t do this. numpy.savetxt does, but I wouldn’t want to do:

Categories Python, Q&A Tags fixed-width, pandas, python Leave a comment

Multiprocessing : use tqdm to display a progress bar

August 15, 2022 by Magenaut

To make my code more “pythonic” and faster, I use “multiprocessing” and a map function to send it a) the function and b) the range of iterations.

Categories Python, Q&A Tags multiprocessing, progress-bar, python, tqdm Leave a comment

Pandas every nth row

August 15, 2022 by Magenaut

Dataframe.resample() works only with timeseries data. I cannot find a way of getting every nth row from non-timeseries data. What is the best method?

Categories Python, Q&A Tags pandas, python, resampling Leave a comment

Scrolling to top of the page in Python using Selenium

August 15, 2022 by Magenaut

I’m having issues with scrolling to the top of the web page when using Python and Selenium.

Categories Python, Q&A Tags javascript, python, selenium, selenium-webdriver, webdriver Leave a comment

How to set opacity of background colour of graph with Matplotlib

August 15, 2022 by Magenaut

I’ve been playing around with Matplotlib and I can’t figure out how to change the background colour of the graph, or how to make the background completely transparent.

Categories Python, Q&A Tags alpha, matplotlib, python Leave a comment

Fastest way to sort each row in a pandas dataframe

August 15, 2022 by Magenaut

I need to find the quickest way to sort each row in a dataframe with millions of rows and around a hundred columns.

Categories Python, Q&A Tags pandas, performance, python Leave a comment

How to write a generator class?

August 15, 2022 by Magenaut

I see lot of examples of generator functions, but I want to know how to write generators for classes. Lets say, I wanted to write Fibonacci series as a class.

Categories Python, Q&A Tags fibonacci, generator, python Leave a comment

What’s the difference between subprocess Popen and call (how can I use them)?

August 15, 2022 by Magenaut

I want to call an external program from Python. I have used both Popen() and call() to do that.

Categories Python, Q&A Tags popen, python, subprocess Leave a comment

Python ‘requests’ library – define specific DNS?

August 15, 2022 by Magenaut

In my project I’m handling all HTTP requests with python requests library.

Categories Python, Q&A Tags dns, http, python, python-requests, urllib Leave a comment

Detect 64bit OS (windows) in Python

August 15, 2022 by Magenaut

Does anyone know how I would go about detected what bit version Windows is under Python. I need to know this as a way of using the right folder for Program Files.

Categories Python, Q&A Tags 64-bit, python, windows Leave a comment
Older posts
Newer posts
← Previous Page1 … Page553 Page554 Page555 … Page827 Next →
  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

.net ajax asp.net asp.net-core asp.net-mvc asp.net-mvc-3 asp.net-mvc-4 asp.net-web-api bash c# command-line css custom-post-types custom-taxonomy dataframe dictionary django entity-framework functions gridview html iis javascript jquery json linux list matplotlib numpy pandas php plugin-development plugins posts python python-2.7 python-3.x security shell shell-script sql string vb.net webforms wp-query

© 2026 Magenaut • Built with GeneratePress