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Python Practice Creating and Using Functions in Python Practice Functions Thank You!

Posted by niveusth
niveusth
4,528 Points

How to find the "max allowed is 42" text from the MessageToLongError?

I couldn't fine the text "max allowed is 42" from the 2nd error so I just copied pasted it to my except statement.

Jonathan Marus
Jonathan Marus
1,755 Points

Ditto, I read it wrong I did .format(message) thinking text from exception was the original text from the user that caused the error. but it actually meant to print the error haha. so i cheated and just copied it into my print statement as well

7 Answers

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

That's cheating! :stuck_out_tongue_closed_eyes: It's funny that it let you get away with that. :smirk:

But the way to capture the built-in text is with the "as" operator:

except MessageTooLongError as err:   # this copies the exception text into "err"
    print(f"Oh no! Your message was too long ({err})")
Cao Tru
PLUS
Cao Tru
Courses Plus Student 1,103 Points
Cao Tru
Cao Tru
Courses Plus Student 1,103 Points

Yes. That's cheating :)), the right code is:

except MessageTooLongError as err:
print("Oh no! Your message was too long ({})".format(err))

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

That will work also. I used an f-string instead of "format" in my example as it makes the code a bit more compact, and to my eyes a bit easier to read. And to cover all the options, one other method that would produce the same results is a formatted string:

    print("Oh no! Your message was too long %s" % err)
Cao Tru
PLUS
Cao Tru
Courses Plus Student 1,103 Points
Cao Tru
Cao Tru
Courses Plus Student 1,103 Points

That great Steven! How can i know more option like f-string and % err, can you share something. Sorry because i just start learning coding

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

Learning the other "tools in the toolbox" will be a natural part of your progress as you continue learning. The earlier courses concentrate on showing you at least one way to do things, which will typically be the "classic" methods like "format".

For a definitive reference I use the online Python manual, but it's pretty dry reading. I'd recommend just sticking with the courses for now and if your curiosity is overwhelming, check out some of the conference videos.

Cao Tru
PLUS
Cao Tru
Courses Plus Student 1,103 Points
Cao Tru
Cao Tru
Courses Plus Student 1,103 Points

Thanks for your advice Steven.

Norma Martinez Quiroz
Norma Martinez Quiroz
3,651 Points
Norma Martinez Quiroz
Norma Martinez Quiroz
3,651 Points

except MessageTooLongError as error : print("Oh no! Your message was too long ${}".format(error))

Steven Lee
Steven Lee
1,878 Points
Steven Lee
Steven Lee
1,878 Points

Hello!

May I ask a question about the default message set in the MessageToLongError

Could I change the message by raise the error variable again and put in the new message? I have tried this in the previous practice willing to change the default message in ValueError, unfortunately, I failed.

nicolea
nicolea
5,048 Points
nicolea
nicolea
5,048 Points 
except MessageTooLongError as err:
    print("Oh no! Your message was too long {}".format(err))