lig/len_if_not_none.py

## len_if_not_none.py
a = ['123', '1234', None, '12']

## 1
from operator import methodcaller
b = [methodcaller('__len__')(x) for x in a if x]
print(b)

## 2
b = [len(x) for x in a if x]
print(b)
	a = ['123', '1234', None, '12']

	## 1
	from operator import methodcaller
	b = [methodcaller('__len__')(x) for x in a if x]
	print(b)

	## 2
	b = [len(x) for x in a if x]
	print(b)