Check out the following simple code:
#!/bin/python
print "1 - echo 1"
print "2 - echo 2"
answer = input("Enter your choice - ")
if answer == 1:
print "1"
elif answer == 2:
print "2"
else:
print "Invalid choice!"
The else statement noted above works fine for numeric values other then 1 or 2.
But if a user types in alphanumeric data (letters) into this, it blows up.
Check out the following:
[root@ansi ~]$ ./trash
1 - echo 1
2 - echo 2
Enter your choice - 3
Invalid choice!
[root@ansi ~]$ ./trash
1 - echo 1
2 - echo 2
Enter your choice - r
Traceback (most recent call last):
File "./trash", line 6, in <module>
answer = input("Enter your choice - ")
File "<string>", line 1, in <module>
NameError: name 'r' is not defined
I would expect the same behavior from both runs. Why does Python differ in the
way it treats a character in that program? Finally, how to accomodate for such
(how to fix)?
TIA
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