Thank you so much for the help.
I'm self-studying and watching tutorials on youTube. The problem was given
as an exercise after the tutorial.
I did modify my code based on the suggestions here and it helps.
Thank you!
On Tue, Aug 25, 2020 at 4:31 PM Schachner, Joseph <
joseph.schach...@teledyne.com> wrote:
> The very first line of your function km_mi(): ends it:
> def km_mi():
> return answer
>
> answer has not been assigned, so it returns None.
>
> Advice: remove that "return" line from there. Also get rid of the last
> line, answer = km_mi which makes answer refer to the function km_mi().
> Put the "return answer" line at the end, where the "answer=km_mi" used to
> be.
>
> That should help. The code calculates "answer". It prints "answer".
> You should return "answer" at the end, after it has been calculated.
>
> --- Joseph S.
>
> -----Original Message-----
> From: Py Noob <pynoo...@gmail.com>
> Sent: Monday, August 24, 2020 9:12 AM
> To: python-list@python.org
> Subject: Output showing "None" in Terminal
>
> Hi!
>
> i'm new to python and would like some help with something i was working on
> from a tutorial. I'm using VScode with 3.7.0 version on Windows 7. Below is
> my code and the terminal is showing the word "None" everytime I execute my
> code.
>
> Many thanks!
>
> print("Conversion")
>
> def km_mi():
> return answer
>
> selection = input("Type mi for miles or km for kilometers: ")
>
> if selection == "mi":
> n = int(input(print("Please enter distance in miles: ")))
> answer = (1.6*n)
> print("%.2f" % answer, "miles")
>
> else:
> n = float(input(print("Please enter distance in kilometers: ")))
> answer = (n/1.6)
> print("%.2f" % answer, "kilometers")
>
> answer = km_mi
>
>
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