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python

Flask view raises TypeError: ‘bool’ object is not callable

August 22, 2022 by Magenaut

I am trying to debug a view in my Flask app that is return a 500 status with the error TypeError: 'bool' object is not callable in the traceback. The view calls login_user from Flask-Login then returns True to indicate that the login was successful.

Categories Python, Q&A Tags flask, flask-login, python Leave a comment

How to parse XML and get instances of a particular node attribute?

August 22, 2022 by Magenaut

I have many rows in XML and I’m trying to get instances of a particular node attribute.

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

Selenium “selenium.common.exceptions.NoSuchElementException” when using Chrome

August 22, 2022 by Magenaut

I’m trying to play QWOP using Selenium on Chrome but I keep getting the following error:

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

How to access object attribute given string corresponding to name of that attribute

August 22, 2022 by Magenaut

How do you set/get the values of attributes of t given by x?

Categories Python, Q&A Tags attributes, object, python Leave a comment

What is the difference between __str__ and __repr__?

August 22, 2022 by Magenaut

What is the difference between __str__ and __repr__ in Python?

Categories Python, Q&A Tags magic-methods, python, repr Leave a comment

How to convert string representation of list to a list?

August 22, 2022 by Magenaut

I was wondering what the simplest way is to convert a string representation of a list like the following to a list:

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

How to print instances of a class using print()?

August 22, 2022 by Magenaut

I am learning the ropes in Python. When I try to print an object of class Foobar using the print() function, I get an output like this:

Categories Python, Q&A Tags class, object, printing, python Leave a comment

Download large file in python with requests

August 22, 2022 by Magenaut

Requests is a really nice library. I’d like to use it for downloading big files (>1GB).
The problem is it’s not possible to keep whole file in memory; I need to read it in chunks. And this is a problem with the following code:

Categories Python, Q&A Tags download, python, python-requests, stream Leave a comment

What is __init__.py for?

August 22, 2022 by Magenaut

What is __init__.py for in a Python source directory?

Categories Python, Q&A Tags module, package, python, python-packaging Leave a comment

“is” operator behaves unexpectedly with integers

August 22, 2022 by Magenaut

Why does the following behave unexpectedly in Python?

Categories Python, Q&A Tags identity, int, operators, python, python-internals 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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