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Python Practice Creating and Using Functions in Python Practice Functions Use an External Function

Posted by Ariadna Rodriguez
Ariadna Rodriguez
6,281 Points

I've tried everything I'm so confused any advice is helpful at this point.

using_a_function.py 
"""
This is importing a function named `tweet` from a file
    that we unfortunately don't have access to change.

You use it like so:
>>> tweet("Hello this is my tweet")

If the function cannot connect to Twitter,
    the function will raise a `CommunicationError`
If the message is too long,
    the function will raise a `MessageTooLongError`
"""
from twitter import (
    tweet,
    MessageTooLongError,
    CommunicationError,
)


message = input("What would you like to tweet?  ")
# Your code here
    raise MessageTooLongError("Oh no! Your message was too long")
try:
    tweet(message)
except CommunicationError:
    print("An error occurred attempting to connect to Twitter. Please try again!")
except MessageTooLongError as err:
    print("({})".format(err))

1 Answer

Louise St. Germain
Louise St. Germain
19,424 Points
Louise St. Germain
Louise St. Germain
19,424 Points

Hi Ariadna,

You almost have the right answer. First, you can take out this line:

    raise MessageTooLongError("Oh no! Your message was too long")

The tweet function is already going to raise errors if there is a problem, so you don't have to do it yourself. All it's asking you to do is to catch the errors in a try... except statement.

Next, that "Oh no..." line has to be added to the except statement, so your last line should read:

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

After that, everything should be working. I hope this helps!

Ariadna Rodriguez
Ariadna Rodriguez
6,281 Points

That worked! That part about the function raising the error really helped me understand why it wasn't working! Thanks for your help Louise St. Germain.