Accessing Tor using Python 2.7.x
Avoid bare except

Writing except: without specifying a precise exception is asking for trouble, as anything will be caught, silencing all possible  bugs, instead use: except MyExpectedKindOfException.

Reconsider the very long sleeping

The function tor_browser_initialise ends with time.sleep(30).

That is a lot of time to sleep. Are you 100% sure that any call to that function will want to sleep so much?

Much worse, the sleep is not documented, so the caller will see his program hang on for 30 seconds for no apparent reason!

Just remove the call to time.sleep and let the user decide if and how much he wants to sleep after calling the function.