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Python

Bar Chart: How to choose color if value is positive vs value is negative

August 12, 2022 by Magenaut

I have a pandas dataframe with positive and negative values and want to plot it as a bar chart.

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

How do I detect if Python is running as a 64-bit application?

August 12, 2022 by Magenaut

Possible Duplicate:
How do I determine if my python shell is executing in 32bit or 64bit mode?

Categories Python, Q&A Tags 64-bit, python Leave a comment

return eats exception

August 12, 2022 by Magenaut

I found the following behavior at least weird:

Categories Python, Q&A Tags exception, finally, python, return Leave a comment

Unbounded range()

August 12, 2022 by Magenaut

Is there an unbounded version of range (or xrange for Python 2), or is it necessary to define it manually? For example

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

How to draw a rectangle over a specific region in a matplotlib graph

August 12, 2022 by Magenaut

I have a graph, computed from some data, drawn in matplotlib. I want to draw a rectangular region around the global maximum of this graph. I tried plt.axhspan, but the rectangle doesn’t seem to appear when I call plt.show()

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

An integer is required? open()

August 12, 2022 by Magenaut

I have a very simple python script that should scan a text file, which contains lines formatted as id=’value‘ and put them into a dict. the python module is called chval.py and the input file is in.txt. here’s the code:

Categories Python, Q&A Tags argv, file-io, integer, python Leave a comment

Using setattr() in python

August 12, 2022 by Magenaut

I am looking for someone to explain the basics of how to use, and not use setattr().

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

Selenium “Unable to find a matching set of capabilities” despite driver being in /usr/local/bin

August 12, 2022 by Magenaut

I’m trying to follow a tutorial about Selenium, http://selenium-python.readthedocs.io/getting-started.html. I’ve downloaded the latest version of geckodriver and copied it to /usr/local/bin. However, when I try

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

Efficiently Calculating a Euclidean Distance Matrix Using Numpy

August 12, 2022 by Magenaut

I have a set of points in 2-dimensional space and need to calculate the distance from each point to each other point.

Categories Python, Q&A Tags euclidean-distance, matrix, numpy, performance, python Leave a comment

Python matplotlib restrict to integer tick locations

August 12, 2022 by Magenaut

Quite often I want to make a bar chart of counts. If the counts are low I often get major and/or minor tick locations that are not integers. How can I prevent this? It makes no sense to have a tick at 1.5 when the data are counts.

Categories Python, Q&A Tags matplotlib, 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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