Finding substrings in Python

Rivka, who reads my "Better developers" newsletter (BetterDevelope..., asked me about finding parallel substrings. I answer the question here, using strings, loops, slices, and (huzzah!) a list comprehension. Questions about Python? Send them to me on Twitter at @reuvenmlerner ( / reuvenmlerner ) or via e-mail to [e-mail].

[@siddharthsingh6561]

ur incredible!

[@ReuvenLerner]

Thanks so much!

[@Cloudxxx23]

6:30 What does +=1 can do?

[@ReuvenLerner]

when you say x += 1, you're really saying x = x + 1. Meaning: Take the current value of x, add 1 to it, and assign the result back to the variable x. You can do this with any variable that contains an integer.

[@zaqaek]

5:47 print (f'{index=}') ?

[@ReuvenLerner]

Yes, it's a new feature in Python 3.8's f-strings, and I really love it. If you say x = 10 print(f'{x=}') Then Python will print x=10 Meaning: variable name, equals sign, and value. When you're debugging, it's fantastic.

[@zaqaek]

@@ReuvenLerner wow! thanks. I was using version 3.7. time to upgrade :)