Truncate a string without ending in the middle of a word

Question

I am looking for a way to truncate a string in Python that will not cut off the string in the middle of a word.

For example:

Original:          \"This is          


        

Answer 1

Here's a slightly better version of the last line in Adam's solution:

return content[:length].rsplit(' ', 1)[0]+suffix

(This is slightly more efficient, and returns a more sensible result in the case there are no spaces in the front of the string.)