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python

Element-wise logical OR in Pandas

August 11, 2022 by Magenaut

I would like the element-wise logical OR operator. I know “or” itself is not what I am looking for.

Categories Python, Q&A Tags boolean-logic, boolean-operations, logical-operators, pandas, python Leave a comment

Python inheritance – how to disable a function

August 11, 2022 by Magenaut

In C++ you can disable a function in parent’s class by declaring it as private in the child class. How can this be done in Python? I.E. How can I hide parent’s function from child’s public interface?

Categories Python, Q&A Tags inheritance, interface, private, python Leave a comment

Why does Python have a limit on the number of static blocks that can be nested?

August 11, 2022 by Magenaut

The number of statically nested blocks in Python is limited to 20.
That is, nesting 19 for loops will be fine (although excessively time consuming; O(n^19) is insane), but nesting 20 will fail with:

Categories Python, Q&A Tags language-implementation, nested-loops, python Leave a comment

Deleting rows with Python in a CSV file

August 11, 2022 by Magenaut

All I would like to do is delete a row if it has a value of ‘0’ in the third column. An example of the data would be something like:

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

Run interactive Bash with popen and a dedicated TTY Python

August 11, 2022 by Magenaut

I need to run an interactive Bash instance in a separated process in Python with it’s own dedicated TTY (I can’t use pexpect).
I used this code snippet I commonly see used in similar programs:

Categories Python, Q&A Tags bash, linux, python, python-2.x, tty Leave a comment

Unpack dictionary from Pandas Column

August 11, 2022 by Magenaut

I have a dataframe that has one of the columns as a dictionary. I want to unpack it into multiple columns (i.e. code, amount are separate columns in the below Raw column format). The following code used to work with pandas v0.22, now (0.23) giving an index error:

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

sdl2 – ImportError: DLL load failed: The specified module could not be found and [CRITICAL] [App] Unable to get a Window, abort

August 11, 2022 by Magenaut

remove program

Categories Python, Q&A Tags dll, kivy, python, sdl-2 Leave a comment

Output of a python script running as unit is out of order while shells seems unnafected

August 11, 2022 by Magenaut

How would I get all outputs of systemd managed python2 script instantly into journal, just like it appears in terminal

Categories Q&A, Unix & Linux Tags python, stdout, systemd, systemd-journald Leave a comment

stderr gets flushed before stdout, when using file logger

August 10, 2022 by Magenaut

My python code:

Categories Q&A, Unix & Linux Tags logs, nohup, python, stderr Leave a comment

How does /usr/bin/env know which program to use?

August 9, 2022 by Magenaut

When I use the shebang #!/usr/bin/env python to run a script, how does the system know which python to use? if I look for a python bin path in the environment variables I find nothing.

Categories Q&A, Unix & Linux Tags environment-variables, 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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