python substring没有被打印

Question

I can't figure whats wrong with this part of code

if value.find("\\") > -1:
    newstr = int(value.find("\\"))
    print newstr
    print value
    print value[newstr:7]

the newstr is being printed correctly as well as the value but the value[newstr:7] show blank.

Any ideas?

Answer 1

value[newstr:7] will give you from position newstr up to position 7 .

Perhaps you meant value[newstr:newstr + 7] ?