Installing Python 3 on RHEL
I’m trying to install python3 on RHEL using the following steps:
python-3.x
What are the “parts” in a multipart email?
A bit of context… Some time ago, I wrote Python a program that deals with email messages, one thing that always comes across is to know whether an email is “multipart” or not. After a bit of research, I knew that it has something to do with emails containing HTML, or attachments etc… But I … Read more
What is the meaning of “Failed building wheel for X” in pip install?
This is a truly popular question here at SO, but none of the many answers I have looked at, clearly explain what this error really mean, and why it occurs.
Prevent creating new attributes outside __init__
I want to be able to create a class (in Python) that once initialized with __init__, does not accept new attributes, but accepts modifications of existing attributes. There’s several hack-ish ways I can see to do this, for example having a __setattr__ method such as
TypeError: ‘dict_keys’ object does not support indexing
def shuffle(self, x, random=None, int=int): """x, random=random.random -> shuffle list x in place; return None. Optional arg random is a 0-argument function returning a random float in [0.0, 1.0); by default, the standard random.random. """ randbelow = self._randbelow for i in reversed(range(1, len(x))): # pick an element in x[:i+1] with which to exchange x[i] j … Read more
Alternative to execfile in Python 3?
Python 2 had the builtin function execfile, which was removed in Python 3.0. This question discusses alternatives for Python 3.0, but some considerable changes have been made since Python 3.0. What is the best alternative to execfile for Python 3.2, and future Python 3.x versions? Answers: Thank you for visiting the Q&A section on Magenaut. … Read more
How to print multiple lines of text with Python
If I wanted to print multiple lines of text in Python without typing print('') for every line, is there a way to do that?
Calling a Python function with *args,**kwargs and optional / default arguments
In Python I can define a function as follows:
EOFError: EOF when reading a line
I am trying to define a function to make the perimeter of a rectangle. Here is the code:
How to use cmp() in Python 3?
I cannot get the command cmp() to work.