how to remove everything after a string using Python re.sub

Question

If i have sentence like:

To contact me, please dial in the number: 300801

and I want to remove everything after "dial" to remain:

To contact me, please dial

How can I use re.sub to do that?

Answer 1

Full interpreter session:

>>> s = "To contact me, please dial in the number: 300801"
>>> import re
>>> re.sub("dial .*", "dial", s)
'To contact me, please dial'

Using standard string slicing and string.find() (as shown in the comments to your question) might be easier though.