I'm learning python+chatbot from this site.
I came across this python syntax I'm not sure what it does.
words = [stemmer.stem(w.lower()) for w in words if w != "?"]
Could you please let me know, especially the bracket+expression+space+expression+bracket? words = [stemmer.stem(w.lower()) for w in words if w != "?"]
I tried these in the python interpreter but still can't guess the logic of the syntax:
In [25]: words=[1 for i in [1,2,3] if i !=2]
In [26]: words
Out[26]: [1, 1]
In [27]: words=[2 for i in [1,2,3] if i !=2]
In [28]: words
Out[28]: [2, 2]
In [32]: a=[0 1]
yield invalid syntax (I tried to post the exact message, but the form complains about the format)
