Question

I am trying to print out a message.
If a word in dictionary is not found then it should print out a message instead of giving an error.
What I thought is

if bool(bool(dictionary[word])) == True:
    return dictionary[word]
else:
    print 'wrong'

but it does not work when I write something that is not in dictionary instead it gives something like this

Traceback (most recent call last):
  File "<pyshell#34>", line 1, in <module>
    translate_word('hous')
  File "H:\IND104\final\Project 4 - Italian-Spanish Translator\trial 1.py", line 21, in translate_word
    if bool(bool(dictionary[word])) == True:
KeyError: 'hous' 

So how can I print out an error message thanks.

Answer 1

One way to achieve what you want is a try/except block:

try:
    return dictionary[word]
except KeyError:
    print 'wrong'
    return None