urlparse4
urlparse4
is a performance-focused replacement for Python's
urlparse
module, using C++ code from Chromium's own URL parser.
It is not production-ready yet.
Many credits go to
gurl-cython <https://github.com/Preetwinder/gurl-cython>
__ for
inspiration.
Differences with Python's urlparse
urlparse4
should be a transparent, drop-in replacement in almost all
cases. Still, there are a few differences to be aware of:
urlparse4
is 2-7x faster for most operations (see benchmarks
below)urlparse4
currently doesn't pass CPython's test_urlparse.py
suite due to edge cases that Chromium's parser manages differently
(usually in accordance to the RFCs, which urlparse
doesn't follow
entirely).urlparse4
only supports Python 2.7 for now
How to test
You must have Docker installed and running. You can run CPython's test
suite for urlparse
like this:
::
make docker_build
make docker_test
Benchmarks
We are testing the following librairies on a sample of 100k URLs from
Blink and DMOZ:
- urlparse4 ;-)
CPython's urlparse <https://github.com/python/cpython/blob/2.7/Lib/urlparse.py>
__urlparse2 <https://github.com/mwhooker/urlparse2>
__YURL <http://github.com/homm/yurl/>
__uritools <https://github.com/tkem/uritools>
__pygurl / gurl-cython <https://github.com/Preetwinder/gurl-cython>
__cyuri <https://github.com/mitghi/cyuri>
__
Each of them is being tested on a few different types of operations
(basic urlsplit, relative link resolution, hostname extraction)
Here is how to launch the tests:
::
make docker_build
make docker_benchmark
Current results on a 2.2GHz Intel Core i7 MBP (in seconds):
::
Benchmark results on 104300 URLs x 10 times, in seconds:
Name Sum Mean Median 90%
---------------- ------------- ----------------- ----------------- -----------------
urlsplit:
---- ---- ---- ---- ----
urlparse4 1.681858 1.61251965484e-06 1.99999999984e-06 2.00000000006e-06
pygurl 2.031712 1.94795014382e-06 1.99999999984e-06 2.00000000028e-06
uritools 2.638991 2.53019271333e-06 2.00000000028e-06 3.00000000042e-06
yurl 3.910247 3.74903835091e-06 3.00000000131e-06 4.99999999981e-06
urlparse2 3.756782 3.60190028763e-06 2.99999999953e-06 4.00000000056e-06
urlparse 3.862006 3.70278619367e-06 3.00000000308e-06 4.99999999803e-06
cyuri 9.912275 9.50361936721e-06 8.00000000112e-06 1.30000000027e-05
urljoin_sibling:
---- ---- ---- ---- ----
urlparse4 2.008453 1.92565004794e-06 2.00000000206e-06 2.00000000206e-06
pygurl 2.193427 2.10299808245e-06 2.00000000206e-06 2.99999999953e-06
uritools 10.575344 1.01393518696e-05 9.99999999607e-06 1.20000000052e-05
yurl 13.213052 1.26683144775e-05 1.19999999981e-05 1.60000000022e-05
urlparse2 14.239327 1.36522790029e-05 1.19999999981e-05 1.69999999997e-05
urlparse 9.25991500001 8.87815436242e-06 8.00000000822e-06 1.10000000006e-05
cyuri 5.742724 5.50596740172e-06 5.00000000159e-06 7.00000001075e-06
hostname:
---- ---- ---- ---- ----
urlparse4 1.883982 1.80631064237e-06 1.99999999495e-06 2.00000000916e-06
pygurl 1.67332099999 1.60433461169e-06 1.99999999495e-06 2.00000000916e-06
uritools 3.31632199999 3.17959923297e-06 3.00000000664e-06 4.00000000411e-06
yurl 3.853319 3.69445733461e-06 3.00000000664e-06 4.00000000411e-06
urlparse2 4.641513 4.45015627996e-06 4.00000000411e-06 5.99999999906e-06
urlparse 5.122682 4.91148801534e-06 4.00000000411e-06 5.99999999906e-06
cyuri 11.108649 1.06506701822e-05 9.0000000057e-06 1.5999999988e-05
Some libraries are included in the benchmark code but disabled for
various reasons:
urlparse3 <https://pypi.python.org/pypi/urlparse3/>
__ (Raises on
valid URLs)slimurl <https://github.com/mosquito/slimurl>
__ (Too slow)
Feel free to submit pull requests to add new ones!
Feedback
We'd love to hear your feedback! Feel free to look at the issues on
GitHub and open new ones if needed :)