Python map lambda cannot contain assignment

Describes the cause and action for error messages.


Error Message(English):
map lambda cannot contain assignment

Resolution


関連リンク


Why are assignments not allowed in Python's `lambda` expressions ...
https://stackoverflow.com/questions/50090868/why-are-assignments-not-allowed-in-pythons-lambda-expre・・・

"lambdas can't have assignment statements" - so why is "foo ...
https://stackoverflow.com/questions/39493159/lambdas-cant-have-assignment-statements-so-why-is-foo-l・・・

E731 do not assign a lambda expression, use a def
https://stackoverflow.com/questions/25010167/e731-do-not-assign-a-lambda-expression-use-a-def

How to perform an assignment inside a lambda function
https://stackoverflow.com/questions/15341130/how-to-perform-an-assignment-inside-a-lambda-function

Assignment inside lambda expression in Python
https://stackoverflow.com/questions/6282042/assignment-inside-lambda-expression-in-python

Why can't lambda forms contain statements? - Effbot
http://effbot.org/pyfaq/why-can-t-lambda-forms-contain-statements.htm

lambda, map and filter in Python ? Rupesh Mishra ? Medium
https://medium.com/@happymishra66/lambda-map-and-filter-in-python-4935f248593

code golf - Python workarounds for assignment in lambda ...
https://codegolf.stackexchange.com/questions/106514/python-workarounds-for-assignment-in-lambda

How do I make an assignment inside lambda function? - Python Forum
https://python-forum.io/Thread-How-do-I-make-an-assignment-inside-lambda-function

Assigning a lambda expression to a variable ? Python Anti-Patterns ...
https://docs.quantifiedcode.com/python-anti-patterns/correctness/assigning_a_lambda_to_a_variable.ht・・・



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