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python

Convert bytes to a string

August 22, 2022 by Magenaut

I’m using this code to get standard output from an external program:

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

Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?

August 22, 2022 by Magenaut

For example I have two dicts:

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

Split string with multiple delimiters in Python

August 22, 2022 by Magenaut

I found some answers online, but I have no experience with regular expressions, which I believe is what is needed here. I have a string that needs to be split by either a ‘;’ or ‘, ‘ That is, it has to be either a semicolon or a comma followed by a space. Individual commas … Read more

Categories Python, Q&A Tags delimiter, python, split, string Leave a comment

How to read/process command line arguments?

August 22, 2022 by Magenaut

I am originally a C programmer. I have seen numerous tricks and “hacks” to read many different arguments.

Categories Python, Q&A Tags command-line, command-line-arguments, python Leave a comment

What is the best way to implement nested dictionaries?

August 22, 2022 by Magenaut

I have a data structure which essentially amounts to a nested dictionary. Let’s say it looks like this:

Categories Python, Q&A Tags autovivification, data-structures, dictionary, mapping, python Leave a comment

Split (explode) pandas dataframe string entry to separate rows

August 22, 2022 by Magenaut

I have a pandas dataframe in which one column of text strings contains comma-separated values. I want to split each CSV field and create a new row per entry (assume that CSV are clean and need only be split on ‘,’). For example, a should become b:

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

Get statistics for each group (such as count, mean, etc) using pandas GroupBy?

August 22, 2022 by Magenaut

I have a data frame df and I use several columns from it to groupby:

Categories Python, Q&A Tags dataframe, group-by, pandas, pandas-groupby, python Leave a comment

Meaning of @classmethod and @staticmethod for beginner?

August 22, 2022 by Magenaut

when should I use them, why should I use them, and how should I use them?

Categories Python, Q&A Tags class-method, oop, python, static-methods Leave a comment

Multiple assignment and evaluation order in Python

August 22, 2022 by Magenaut

What is the difference between the following Python expressions:

Categories Python, Q&A Tags assignment-operator, multiple-assignment, python, variable-assignment Leave a comment

Is it Pythonic to use list comprehensions for just side effects?

August 22, 2022 by Magenaut

Think about a function that I’m calling for its side effects, not return values (like printing to screen, updating GUI, printing to a file, etc.).

Categories Python, Q&A Tags list-comprehension, 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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