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How to add a ‘b’ prefix to a variable name in Python?

Posted by Alex On September 12, 2024

Strings with a ‘b’ prefix in Python Consider the following example: byte_string = b'test string' print(byte_string) These two strings will print: b'test string' Strings with a ‘b’ prefix are a sequence of bytes, i.e. a special type of data (such as strings, numbers, lists, etc.). Suppose we want to do something like this: variable_string = "test string" byte_string = b'variable_string'...

How to run a program from Python: how to run a system command or another Python script (complete guide)

Posted by Alex On September 2, 2024

Table of Contents 1. The subprocess module in Python 2. How to pass arguments to a program in subprocess.run 3. Getting the result of command execution (standard output, stdout)) 4. Working with the standard error (stderr) 5. Automatic command splitting into a list of arguments 6. How to run a command with wildcards 7. Calling a command without breaking it...

How to clear a List in Python. Why clearing a List deletes copies of it in other variables

Posted by Alex On August 18, 2024

Why clearing a List in Python deletes copies of it in other variables Clearing a list in Python can be done in a number of ways, some of which can lead to unexpected results if you don't know the differences and what's going on under the hood. Let's look at a very simple script that doesn't do anything meaningful, but...

How to find the third root in Linux. How to extract a root of any degree in Linux

Posted by Alex On August 17, 2024

Table of contents 1. How to extract a cube root in Linux 2. How to find a cube root in the Linux calculator (GNOME Scientific calculator) 3. How to find a root of any degree in the Linux calculator (GNOME Scientific calculator) 4. How to extract a root of any degree in the command line 4.1 Extracting cube roots using...

Error “ModuleNotFoundError: No module named ‘manimpango’” (SOLVED)

Posted by Alex On September 25, 2023

When starting one of the programs the following error occurred: Traceback (most recent call last): File "/usr/bin/emote", line 33, in <module> sys.exit(load_entry_point('Emote==0.0.0', 'gui_scripts', 'emote')()) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/bin/emote", line 25, in importlib_load_entry_point return next(matches).load() ^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3.11/importlib/metadata/__init__.py", line 202, in load module = import_module(match.group('module')) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3.11/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "<frozen importlib._bootstrap>", line 1206,...