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Python Python Collections (Retired) Tuples Tuples With Functions

Small questions: why key.title() instead of just key? And why no ** example?

Hi!

In the last example, Kenneth Love used key.title() in the .format() call instead of just key, even though (I believe) the latter would work just as well. I'm sure he had a reason for this; just wondering what it is.

Also, found it kind of strange that he prepped us to be able to use a ** when looping over a dictionary's items, but did not use it in any example. What was the reason for this / where can an example of such be found in this course?

Thanks! and Be Well, Graham

2 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,457 Points

You are correct that key could have been used. The value of key, at this point, is a string holding the dictionary key. Since this string is of type str, the method .title() is available. From help(str.title):

title(...) method of builtins.str instance
    S.title() -> str

    Return a titlecased version of S, i.e. words start with title case
    characters, all remaining cased characters have lower case.

Thanks for this, Chris. I did not realize that .title() was a case! I assumed it was just the 'title' of the key, ha.

Dave Huckle
Dave Huckle
7,030 Points

Haha, I thought the same.