Hi all,
I want my program to report an error if anything other than a number
which I can then convert to float using float() is entered as input:
# Python 3
try:
a = float(input('Enter a number: '))
except ValueError:
print('Wrong input')
else:
print('Right input')
This seems to do the job for me.
python3 input_number.py
$ Enter a number: 34.563
Right input
$ python3 input_number.py
Enter a number: abcd
Wrong input
$ python3 input_number.py
Enter a number: {}
Wrong input
I have two queries:
- Is this the best way to do this?
- Is this is the easiest way to tell a beginner to do this? (Even
though it introduces try..except)
Thanks for any comments.
Best,
Amit.
--
http://echorand.me
_______________________________________________
Tutor maillist - Tutor@python.org
To unsubscribe or change subscription options:
https://mail.python.org/mailman/listinfo/tutor
