A benchmark comparing different ways of extracting a scheme from a URI in Python

urlparse.py

# A benchmark comparing different ways of extracting a scheme from a URI in Python

# common code
# import statements
uri = 'redis://localhost:27017'

# pypy-2.1: after warm up
In [12]: %timeit urlparse.urlparse(uri).scheme
1000000 loops, best of 3: 298 ns per loop

In [11]: %timeit uri.rpartition('://')[0]
10000000 loops, best of 3: 61.1 ns per loop


# Python 3.3.2
In [10]: %timeit parse.urlparse(uri)
100000 loops, best of 3: 5.45 us per loop

In [11]: %timeit uri.rpartition('://')
1000000 loops, best of 3: 229 ns per loop


# Python 2.7.5
In [12]:  %timeit urlparse.urlparse(uri)
100000 loops, best of 3: 2.93 µs per loop

In [13]: %timeit uri.rpartition('://')
1000000 loops, best of 3: 244 ns per loop