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python

How to get value from form field in django framework?

August 14, 2022 by Magenaut

How do I get values from form fields in the django framework? I want to do this in views, not in templates…

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

write() versus writelines() and concatenated strings

August 14, 2022 by Magenaut

So I’m learning Python. I am going through the lessons and ran into a problem where I had to condense a great many target.write() into a single write(), while having a "n" between each user input variable(the object of write()).

Categories Python, Q&A Tags file-io, python, python-2.x, string Leave a comment

Get first row value of a given column

August 14, 2022 by Magenaut

This seems like a ridiculously easy question… but I’m not seeing the easy answer I was expecting.

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

Python: How to remove empty lists from a list?

August 14, 2022 by Magenaut

I have a list with empty lists in it: list1 = [[], [], [], [], [], 'text', 'text2', [], 'moreText'] How can I remove the empty lists so that I get: list2 = ['text', 'text2', 'moreText'] I tried list.remove(”) but that doesn’t work. Answers: Thank you for visiting the Q&A section on Magenaut. Please note … Read more

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

Why is the time complexity of python’s list.append() method O(1)?

August 14, 2022 by Magenaut

As seen in the documentation for TimeComplexity, Python’s list type is implemented is using an array.

Categories Python, Q&A Tags amortized-analysis, python, python-2.7, time-complexity Leave a comment

Which programming languages can I use on Android Dalvik?

August 14, 2022 by Magenaut

In theory, Dalvik executes any virtual machine byte code, created for example with the compilers of

Categories Python, Q&A Tags android, dalvik, java, python, scala Leave a comment

Efficiently updating database using SQLAlchemy ORM

August 14, 2022 by Magenaut

I’m starting a new application and looking at using an ORM — in particular, SQLAlchemy.

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

How is tuple implemented in CPython?

August 14, 2022 by Magenaut

I’ve been trying to learn how CPython is implemented under the scenes. It’s great that Python is high level, but I don’t like treating it like a black box.

Categories Python, Q&A Tags cpython, data-structures, python, python-internals, tuples Leave a comment

Replace negative values in an numpy array

August 14, 2022 by Magenaut

Is there a simple way of replacing all negative values in an array with 0?

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

How to split/partition a dataset into training and test datasets for, e.g., cross validation?

August 14, 2022 by Magenaut

What is a good way to split a NumPy array randomly into training and testing/validation dataset? Something similar to the cvpartition or crossvalind functions in Matlab.

Categories Python, Q&A Tags arrays, numpy, optimization, 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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