Receiving 429 error from Google.

I'm using the Python requests package to execute Google searches and receive a 429 return code. I understand that this indicates too many searches, however, I receive the error on the first search of if I submit a single search within iPython. Just wondering if others have experienced this and if it has something to do with shared IP addresses.
I should also add that when I run the exact same code from my laptop it works without issue.