CodingBat - count_code (Python)

This is a video solution to the count_code problem in Strings 2 (Python) from codingbat.

[khaledalshammari]

Very nice video, please do more of these tutorials, they are helping me so much in my python learning journey
I really like how you break up the problem and explain in simple and short way
very unique and helpful.
Thank you

[teriburrito]

Thanks, Paul! I was confused about the str[i+3] part of the solutions posted elsewhere online and couldn't find a specific explanation for it. Your video was exactly what I needed, and I'll be coming back next time I need help with CodingBat.

[samxsharan]

condition - if str[i:i+2] == "co" and str[i+3]=="e":

[maxhsu]

Why do you choose [0:4] and [6:10] as your reading frame size?

[yumeileventhal]

First of all, Thank you for the tutorial! I couldn't figure this one out and was afraid to post a question on StackExchange because people get mad at beginners' questions. So it was relief to find your video. I do have questions related to the line "for i in range(0, len(str)-3, 1):" What is the "1" for? I learned from the previous (cat_dog) exercise to use "for i in range(len(str)-1)", so I was surprised to see "-3" in your video. I suspect the "1" refers to the letter "e" (in "code"), but if it's the last letter, shouldn't it be "[-1]"?

[abduljelilali]

hi Paul, your video helped me a lot thanks, but why did we ignored the third character which can be any latter after co?

[MultiDman]

Hello, I'm still confused as to why you're using length of the string and subtracting one less from the reading frame making it minus 3. Could you explain it to me?

[lepa]

Can this problem be solved in one line?

[johnkelly]

if 'co' = [i:i + 2] why doesn't 'e' = [i:i + 4]??

[satvikvarmasrivatasavai]

first dislike
yes
but tutorial was good so i changed it to a like

[sindhusiva]

Sir why u have taken range(0, len(str)-3, 1)??