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Title: GitHub - vermuz/wtfPython: A collection of subtle and tricky Python examples

Open Graph Title: GitHub - vermuz/wtfPython: A collection of subtle and tricky Python examples

X Title: GitHub - vermuz/wtfPython: A collection of subtle and tricky Python examples

Description: A collection of subtle and tricky Python examples. Contribute to vermuz/wtfPython development by creating an account on GitHub.

Open Graph Description: A collection of subtle and tricky Python examples. Contribute to vermuz/wtfPython development by creating an account on GitHub.

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💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation
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Explanation	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-1
Time for some hash brownies!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#time-for-some-hash-brownies
Explanation	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-2
Evaluation time discrepancy	https://patch-diff.githubusercontent.com/vermuz/wtfPython#evaluation-time-discrepancy
💡 Explanation	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation
Modifying a dictionary while iterating over it	https://patch-diff.githubusercontent.com/vermuz/wtfPython#modifying-a-dictionary-while-iterating-over-it
Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation
Deleting a list item while iterating over it	https://patch-diff.githubusercontent.com/vermuz/wtfPython#deleting-a-list-item-while-iterating-over-it
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-1
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Explanation	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-3
Let's make a giant string!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#lets-make-a-giant-string
Explanation	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-4
String concatenation interpreter optimizations.	https://patch-diff.githubusercontent.com/vermuz/wtfPython#string-concatenation-interpreter-optimizations
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-2
Yes, it exists!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#yes-it-exists
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-3
is is not what it is!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#is-is-not-what-it-is
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-4
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The function inside loop sticks to the same output	https://patch-diff.githubusercontent.com/vermuz/wtfPython#the-function-inside-loop-sticks-to-the-same-output
Explanation	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-6
Loop variables leaking out of local scope!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#loop-variables-leaking-out-of-local-scope
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-5
A tic-tac-toe where X wins in the first attempt!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#a-tic-tac-toe-where-x-wins-in-the-first-attempt
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-6
Beware of default mutable arguments!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#beware-of-default-mutable-arguments
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-7
Same operands, different story!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#same-operands-different-story
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-8
Mutating the immutable!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#mutating-the-immutable
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-9
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💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-10
The disappearing variable from outer scope	https://patch-diff.githubusercontent.com/vermuz/wtfPython#the-disappearing-variable-from-outer-scope
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-11
Return return everywhere!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#return-return-everywhere
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-12
When True is actually False	https://patch-diff.githubusercontent.com/vermuz/wtfPython#when-true-is-actually-false
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-13
Be careful with chained operations	https://patch-diff.githubusercontent.com/vermuz/wtfPython#be-careful-with-chained-operations
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-14
Name resolution ignoring class scope	https://patch-diff.githubusercontent.com/vermuz/wtfPython#name-resolution-ignoring-class-scope
💡 Explanation	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-1
From filled to None in one instruction...	https://patch-diff.githubusercontent.com/vermuz/wtfPython#from-filled-to-none-in-one-instruction
💡 Explanation	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-2
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💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-15
Class attributes and instance attributes	https://patch-diff.githubusercontent.com/vermuz/wtfPython#class-attributes-and-instance-attributes
Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-1
Catching the Exceptions!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#catching-the-exceptions
Explanation	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-7
Midnight time doesn't exist?	https://patch-diff.githubusercontent.com/vermuz/wtfPython#midnight-time-doesnt-exist
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-16
Needle in a Haystack	https://patch-diff.githubusercontent.com/vermuz/wtfPython#needle-in-a-haystack
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-17
Loop variable resilient to changes	https://patch-diff.githubusercontent.com/vermuz/wtfPython#loop-variable-resilient-to-changes
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-18
Let's see if you can guess this?	https://patch-diff.githubusercontent.com/vermuz/wtfPython#lets-see-if-you-can-guess-this
💡 Explanation:	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-19
Minor Ones	https://patch-diff.githubusercontent.com/vermuz/wtfPython#minor-ones
TODO: Hell of an example!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#todo-hell-of-an-example
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Some nice Links!	https://patch-diff.githubusercontent.com/vermuz/wtfPython#some-nice-links
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	https://patch-diff.githubusercontent.com/vermuz/wtfPython#structure-of-the-examples
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	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-1
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#time-for-some-hash-brownies
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-2
answer	https://stackoverflow.com/a/32211042/4354153
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	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-2
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timeit	https://docs.python.org/3/library/timeit.html
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#string-concatenation-interpreter-optimizations
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-3
here	https://stackoverflow.com/questions/24245324/about-the-changing-id-of-an-immutable-string
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#yes-it-exists
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-4
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#is-is-not-what-it-is
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-5
https://docs.python.org/3/c-api/long.html	https://docs.python.org/3/c-api/long.html
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#is-not--is-different-from-is-not-
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-6
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#the-function-inside-loop-sticks-to-the-same-output
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-7
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#loop-variables-leaking-out-of-local-scope
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-6
What’s New In Python 3.0	https://docs.python.org/3/whatsnew/3.0.html
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#a-tic-tac-toe-where-x-wins-in-the-first-attempt
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-7
	https://patch-diff.githubusercontent.com/vermuz/wtfPython/blob/master/images/tic-tac-toe/after_row_initialized.png
	https://patch-diff.githubusercontent.com/vermuz/wtfPython/blob/master/images/tic-tac-toe/after_board_initialized.png
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#beware-of-default-mutable-arguments
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-8
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#same-operands-different-story
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-9
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#mutating-the-immutable
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-10
https://docs.python.org/2/reference/datamodel.html	https://docs.python.org/2/reference/datamodel.html
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#using-a-variable-not-defined-in-scope
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-11
this	http://sebastianraschka.com/Articles/2014_python_scope_and_namespaces.html
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#the-disappearing-variable-from-outer-scope
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-12
https://docs.python.org/3/reference/compound_stmts.html#except	https://docs.python.org/3/reference/compound_stmts.html#except
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#return-return-everywhere
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-13
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#when-true-is-actually-false
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-14
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#be-careful-with-chained-operations
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-15
https://docs.python.org/2/reference/expressions.html#not-in	https://docs.python.org/2/reference/expressions.html#not-in
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#name-resolution-ignoring-class-scope
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-16
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#from-filled-to-none-in-one-instruction
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-17
here	http://docs.python.org/2/faq/design.html#why-doesn-t-list-sort-return-the-sorted-list
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explicit-typecast-of-strings
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-18
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#class-attributes-and-instance-attributes
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-8
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#catching-the-exceptions
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#explanation-9
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#midnight-time-doesnt-exist
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-19
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#needle-in-a-haystack
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-20
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#loop-variable-resilient-to-changes
this	https://github.com/satwikkansal/wtfPython/issues/11
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-21
Source	https://docs.python.org/3/reference/compound_stmts.html#the-for-statement
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#lets-see-if-you-can-guess-this
this	https://github.com/satwikkansal/wtfPython/issues/9
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-explanation-22
Python language reference	https://docs.python.org/2/reference/simple_stmts.html#assignment-statements
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#minor-ones
multiprocessing	https://docs.python.org/2/library/multiprocessing.html
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#todo-hell-of-an-example
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#contributing
issue	https://github.com/satwikkansal/wtfPython
CONTRIBUTING.md	https://patch-diff.githubusercontent.com/vermuz/wtfPython/blob/master/CONTRIBUTING.md
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#acknowledgements
wtfjs	https://github.com/denysdovhan/wtfjs
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#some-nice-links
https://www.youtube.com/watch?v=sH4XF6pKKmk	https://www.youtube.com/watch?v=sH4XF6pKKmk
https://www.reddit.com/r/Python/comments/3cu6ej/what_are_some_wtf_things_about_python	https://www.reddit.com/r/Python/comments/3cu6ej/what_are_some_wtf_things_about_python
https://sopython.com/wiki/Common_Gotchas_In_Python	https://sopython.com/wiki/Common_Gotchas_In_Python
https://stackoverflow.com/questions/530530/python-2-x-gotchas-and-landmines	https://stackoverflow.com/questions/530530/python-2-x-gotchas-and-landmines
https://stackoverflow.com/questions/1011431/common-pitfalls-in-python	https://stackoverflow.com/questions/1011431/common-pitfalls-in-python
	https://patch-diff.githubusercontent.com/vermuz/wtfPython#-license
	http://www.wtfpl.net
Satwik Kansal	https://satwikkansal.xyz
bit.ly/wtfpython	https://bit.ly/wtfpython
Readme	https://patch-diff.githubusercontent.com/vermuz/wtfPython#readme-ov-file
WTFPL license	https://patch-diff.githubusercontent.com/vermuz/wtfPython#WTFPL-1-ov-file
Contributing	https://patch-diff.githubusercontent.com/vermuz/wtfPython#contributing-ov-file
Please reload this page	https://patch-diff.githubusercontent.com/vermuz/wtfPython
Activity	https://patch-diff.githubusercontent.com/vermuz/wtfPython/activity
0 stars	https://patch-diff.githubusercontent.com/vermuz/wtfPython/stargazers
1 watching	https://patch-diff.githubusercontent.com/vermuz/wtfPython/watchers
0 forks	https://patch-diff.githubusercontent.com/vermuz/wtfPython/forks
Report repository	https://patch-diff.githubusercontent.com/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Fvermuz%2FwtfPython&report=vermuz+%28user%29
Releases	https://patch-diff.githubusercontent.com/vermuz/wtfPython/releases
Packages 0	https://patch-diff.githubusercontent.com/users/vermuz/packages?repo_name=wtfPython
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Terms	https://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacy	https://docs.github.com/site-policy/privacy-policies/github-privacy-statement
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Status	https://www.githubstatus.com/
Community	https://github.community/
Docs	https://docs.github.com/
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