I’m currently learning Python and am learning about very basic functions such as int(), float(), and input().
I have the first two down pat, but I’m struggling to understand the last. The example I’m looking at is found at 12:26 of this video:
nam = input('Who are you? ')
print('Welcome', nam)
Who are you? Chuck
Welcome Chuck
In this case, wouldn’t nam be a variable equal to the text on the right side of the = sign?
In which case, if nam is equal to input('Who are you? '), then wouldn’t print('Welcome', nam) just result in
Welcome input(Who are you? )?
Obviously not (nor does it work in a compiler), which leads me to believe I’m clearly misunderstanding something. But I’ve rewatched that section of the video several times, and looked it up elsewhere on the web, and I just can’t wrap my head around it.
Could someone help me with this?
Thanks.
Yup. You’ll see functions wrapped inside other functions all the time. The function on the inside will run first, then the next, etc.
In the example I gave, the value of nam is a string. But it you need to perform some mathematical function to it, it needs to be interpreted as a number. So once the value is received, int() will convert it into a number. Finally, that final value will be assigned to nam. Wrapping functions inside of functions is a great way to write concise code.