[Tutor] python help

[boB Stepp]

Hello!

On Sat, Sep 12, 2020 at 03:35:53PM +0000, trista rayment via Tutor wrote:
>I need to write a code that asks for a number between 5 and 25 and only allows integers and if a non integer is entered it needs to print 'you must enter an integer'  or if it types a number less than 5 or more than 25, it needs to re-ask the original question until it gets an appropriate answer
>would it be better to form an else if or a range or is there a more effective function to put in my code? 
>my first thought would be:
>print('Enter an integer between 5 and 25')howMany = input()

Are you aware that "input()" can display a prompt to the screen?  So what
you have here could be written:

howMany = input("Enter an integer between 5 and 25)

>limit(int(num, minimum = 5, maximum = 25)    else ValueError

Have you encountered "try/except" in your course yet?  You seem to realize
that if you call "int("I'm not an integer!")" that you will get a
ValueError.  So a "try/except" to the above line:

try:
     some_variable = int(num)
     # If the above works now handle min/max issues.
except ValueError:
     # Insert your code for handling this exception.

>if ValueError =     print('Enter an integer between 5 and 25')
>or 
>for howMany in range (5, 25)    print(....
>or 
>while howMany = (>=5, <=25):    continue
>else     return

Note that a fuller structure for the "if/else" construct goes something
like:

if my_main_check:
     # Code to handle if this is true
elif my_other_check:
     # Code to handle this is true
.
.
.
elif my_last_check:
     # Code to hand if this is true
else:
     # None of the above was true -- deal with what's left

Hopefully the individual pieces make more sense.  Now you need to put them
together sensibly.  You realize you need a loop of some kind and you
suggested a "while" loop.  So if you use that you have two obvious ways to
use it:

1) while True:
        # Put your input and validation code here.
        # But don't want an infinite loop!
        # So how do you "break" out of the loop once you have good input?
or,

2) while my_check_condition:
        # Put your code here.  Loop exits when the above condition becomes
        # False.

Hope this provides some help!

-- 
Wishing you only the best,

boB Stepp