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Description:

friendly 0.7.21

friendly/friendly-traceback

friendly_traceback: Helps understand Python traceback
friendly: Prettier version of the above with some additional enhancements.

This code repository is for friendly.
Unless specified otherwise, from here on, Friendly will refer to both
friendly and friendly_traceback
Description
Created with Python beginners in mind, but also useful for experienced users,
Friendly replaces standard tracebacks
by something easier to understand, translatable into various languages.
Currently, the information provided by Friendly is only available
in two languages: English and French.
The additional information provided by Friendly includes
why() a certain exception occurred,
what() it means, exactly where() it occurred including
the value of relevant variables, and
more.
Installation
Most users should install friendly instead of friendly_traceback,
python -m pip install friendly

This needs to be done from a terminal.
In the command shown above,
python refers to whatever you need to type to invoke your
favourite Python interpreter.
It could be python, python3, py -3.8, etc.
For some special cases, including
using a specialized editor like Mu that has its own way
of installing Python packages, please consult the documentation.
Documentation
The documentation is available by clicking here.
Example
The following example illustrates the information that can
be provided by Friendly.
First, we show the output of friendly-traceback
Traceback (most recent call last):
File "<friendly-console:5>", line 1, in <module>
test()
File "<friendly-console:4>", line 2, in test
a = cost(pi)
NameError: name 'cost' is not defined

Did you mean `cos`?

A `NameError` exception indicates that a variable or
function name is not known to Python.
Most often, this is because there is a spelling mistake.
However, sometimes it is because the name is used
before being defined or given a value.

In your program, `cost` is an unknown name.
Instead of writing `cost`, perhaps you meant one of the following:
* Global scope: `cos`, `cosh`, `acos`

Execution stopped on line 1 of file `'<friendly-console:5>'`.

-->1: test()

test: <function test>

Exception raised on line 2 of file `'<friendly-console:4>'`.

1: def test():
-->2: a = cost(pi)
^^^^

global pi: 3.141592653589793

Next, the same output shown as a screen capture when using friendly.

Projects using Friendly
friendly/friendly-traceback is used by:

HackInScience
futurecoder
CodeGrade
ddebug

Feel free to contact me to add your project to this list.
Contribute
Contribute by making suggestions for improvements, pointing out mistakes either in
the documentation or in the information provided by Friendly, or finding bugs.
If you speak a language other than English or French and feel ambitious, you might
want to work on translations into your own language.
For more details, see CONTRIBUTING
License: MIT
For more details, see LICENSE.
Some ideas were adopted from
DidYouMean-Python (aka BetterErrorMessages)
by Sylvain Desodt, a project that is also using the MIT license; as of October 2021,
that particular project is no longer maintained.
Code of Conduct
In short: be respectful of everyone.
For more details, see Code of Conduct
JetBrains support
We graciously acknowledge the support of JetBrains
which enables us to use the professional version
of PyCharm for developing Friendly.