lamda filter

[bluefrog]

Hi

I am attempting to understand lamdas.

1 2 3

number_list = range(-5, 5) less_than_zero = list(filter(lambda x: x < 0, number_list)) print(less_than_zero)

output:

1	[-5, -4, -3, -2, -1]

Could somebody translate the above lamda to a old style for loop?

[wavic]

https://python-forum.io/Thread-Lambda-Ho...nd-Why-not

[Ofnuts]

lambda x: x < 0 is just a shorthand to create an anonymous function:

1 2	def negative(x):    return x<0

filter(function,iterable) is a generator that applies function() to each element of iterable, and keeps those for which function returns true.

[micseydel]

Could somebody translate the above lamda to a old style for loop?

If you give it a try, we can correct any errors or misconceptions. If you're not sure how though, it's definitely worth making the attempt yourself.