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python

“sys.getsizeof(int)” returns an unreasonably large value?

August 18, 2022 by Magenaut

I want to check the size of int data type in python:

Categories Python, Q&A Tags python Leave a comment

Python out of memory on large CSV file (numpy)

August 18, 2022 by Magenaut

I have a 3GB CSV file that I try to read with python, I need the median column wise.

Categories Python, Q&A Tags csv, memory, numpy, python, scipy Leave a comment

Changing an element in one list changes multiple lists

August 18, 2022 by Magenaut

I have a list of List say mysolution: >>>mySolution [[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]] >>> mySolution[0][0] = 1 >>> mySolution [[1, 0, 0, 0], [1, 0, 0, 0], [1, 0, 0, 0], [1, 0, 0, 0]] Intended output: [[1, 0, 0, 0], [0, 0, … Read more

Categories Python, Q&A Tags list, python, python-2.7 Leave a comment

Date ticks and rotation in matplotlib

August 18, 2022 by Magenaut

I am having an issue trying to get my date ticks rotated in matplotlib. A small sample program is below. If I try to rotate the ticks at the end, the ticks do not get rotated. If I try to rotate the ticks as shown under the comment ‘crashes’, then matplot lib crashes.

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

How can I profile Python code line-by-line?

August 18, 2022 by Magenaut

I’ve been using cProfile to profile my code, and it’s been working great. I also use gprof2dot.py to visualize the results (makes it a little clearer).

Categories Python, Q&A Tags line-by-line, profiling, python Leave a comment

Get all the diagonals in a matrix/list of lists in Python

August 18, 2022 by Magenaut

I’m looking for a Pythonic way to get all the diagonals of a (square) matrix, represented as a list of lists.

Categories Python, Q&A Tags diagonal, matrix, python Leave a comment

Tkinter adding line number to text widget

August 18, 2022 by Magenaut

Trying to learn tkinter and python. I want to display line number for the Text widget in an adjacent frame

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

Deleting multiple elements from a list

August 18, 2022 by Magenaut

Is it possible to delete multiple elements from a list at the same time? If I want to delete elements at index 0 and 2, and try something like del somelist[0], followed by del somelist[2], the second statement will actually delete somelist[3].

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

How to make a character jump in Pygame?

August 18, 2022 by Magenaut

I want to make my character jump. In my current attempt, the player moves up as long as I hold down SPACEv and falls down when I release SPACE.

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

Flask to return image stored in database

August 18, 2022 by Magenaut

My images are stored in a MongoDB, and I’d like to return them to the client, here is how the code is like:

Categories Python, Q&A Tags binary, flask, python 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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