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Python

Accessing dict_keys element by index in Python3

August 13, 2022 by Magenaut

I’m trying to access a dict_key’s element by its index:

Categories Python, Q&A Tags dictionary, key, python, python-3.x Leave a comment

Integer division by negative number

August 13, 2022 by Magenaut

I was asked (again) today to explain why integer division in Python returns the floor of the result instead of truncating towards zero like C.

Categories Python, Q&A Tags math, python, ruby Leave a comment

Sorted Word frequency count using python

August 13, 2022 by Magenaut

I have to count the word frequency in a text using python. I thought of keeping words in a dictionary and having a count for each of these words.

Categories Python, Q&A Tags python, sorting, word-frequency Leave a comment

matplotlib color gradient in patches?

August 13, 2022 by Magenaut

I’d like to create ellipses in matplotlib with a fill color that has an alpha (opacity) value that depends on the radius;

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

How to fix column calculation in Python readline if using color prompt

August 13, 2022 by Magenaut

I use standard tips for customizing interactive Python session:

Categories Python, Q&A Tags interpreter, python, readline, terminal Leave a comment

SQLAlchemy multiple foreign keys in one mapped class to the same primary key

August 13, 2022 by Magenaut

Am trying to setup a postgresql table that has two foreign keys that point to the same primary key in another table.

Categories Python, Q&A Tags postgresql, python, sqlalchemy Leave a comment

How to get the n next values of a generator in a list (python)

August 13, 2022 by Magenaut

I have made a generator to read a file word by word and it works nicely.

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

SQLAlchemy, get object not bound to a Session

August 13, 2022 by Magenaut

I am trying to get an collection of objects out of a database and pass it to another process that is not connected to the database. My code looks like the one below but I keep getting:

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

Matplotlib: TypeError: can’t multiply sequence by non-int of type ‘numpy.float64’

August 13, 2022 by Magenaut

I am trying to fit a linear line of best fit to my matplotlib graph. I keep getting the error that x and y do not have the same first dimension. But they both have lengths of 15. What am I doing wrong?

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

Python elegant inverse function of int(string,base)

August 13, 2022 by Magenaut

Python allows conversions from string to integer using any base in the range [2,36] using:

Categories Python, Q&A Tags 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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