Take advantage of Python's coalescing operators.
sent_with_not_null = sent2 and sent1
Вопрос
I am trying to check if sent1 or sent2 has zero length and if they have i want to set sent_witn_not_null
as the list with non-zero list. But the if-else conditions, i've written seems convoluted. What is a simpler way of doing this?
sent1 = ["this","is","foo","bar"]
sent2 = []
if len(sent1) or len(sent2) == 0:
sent_with_not_null = sent2 if len(sent1) == 0 else sent1
sent_with_not_null = sent1 if len(sent2) == 0 else sent2
Решение
Take advantage of Python's coalescing operators.
sent_with_not_null = sent2 and sent1
Другие советы
Something like this?
In [4]: if sent1 or sent2:
sent_with_not_null=sent1 if sent1 else sent2
...:
In [5]: sent_with_not_null
Out[5]: ['this', 'is', 'foo', 'bar']
or:
In [11]: if any((sent1,sent2)): #in case both sent1 and sent2 are len==0
sent_with_not_null =sent1 or sent2 #set the first True item to sent_with_not_null
#else the last one
....:
In [12]: sent_with_not_null
Out[12]: ['this', 'is', 'foo', 'bar']