Add PySnooper

[AakashKhatu]

What is this Python project?

PySnooper is a debug/logging Library that logs function execution line by line along with Variable value changes.
PySnooper on GitHub
#1285

What's the difference between this Python project and similar ones?

PySnooper Requires almost no setup.
for example, to log the execution of a function all that would be required is:

import pysnooper

@pysnooper.snoop()
def is_prime(number):
    # function definition ...

every call of the function will get automatically logged.

it also includes many other features which make life a lot simpler such as:

• Redirecting output to a file

• Tracking Variables which aren't local to a function

• Prefix for lines to make them easily searchable

• Thread info for multi threadded applications

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Anyone who agrees with this pull request could vote for it by adding a 👍 to it, and usually, the maintainer will merge it when votes reach 20.

[richarson]

Duplicate of #1296 , please vote on that one :)