Python I heard someone likes lambdas

[Python] I heard someone likes lambdas - Printable Version

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I heard someone likes lambdas - Nosuchred - Jul 13, 2016

I read some where one of you guys really liked lambdas and i need your help.
I needed to write a list into a file and i wasnt really sure how to do that, because normal .write doesnt work so i found this-

PHP Code 


<?php 
f.write("\n".join(map(lambda x: str(x), list1))+"\n") 

and i was just wondering what is happening here and i thought someone could explain it to me since i couldnt find a good explanation anywhere.

* - SIM-1866423 - Jul 13, 2016

The best explanation for map function,

PHP Code 


<?php 
r = map(func, seq)

"""
The first argument func is the name of a function and the second a 
sequence (e.g. a list) seq. map() applies the function func to all 
the elements of the sequence seq. 
It returns a new list with the elements changed by func
""" 

python-course.eu/lambda.php

* - Goodies - Jul 14, 2016

The point is that each item in the iterable "list1" will be cast as an str type.