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 for inspiration.
urlparse4 should be a transparent, drop-in replacement in almost all cases. Still, there are a few differences to be aware of:
urlparse4is 2-7x faster for most operations (see benchmarks below)urlparse4currently doesn't pass CPython'stest_urlparse.pysuite due to edge cases that Chromium's parser manages differently (usually in accordance to the RFCs, whichurlparsedoesn't follow entirely).urlparse4only supports Python 2.7 for now
pip install urlparse4
The most straightforward way to use urlparse4 is to replace your imports of urlparse with this:
import urlparse4 as urlparse
You could also monkey-patch its methods in the global urlparse module like this:
import urlparse4
import urlparse
for attr in dir(urlparse4):
setattr(urlparse, attr, getattr(urlparse4, attr))
You must have Docker installed and running. You can run CPython's test suite for urlparse like this:
make docker_build
make docker_test
We are testing the following librairies on a sample of 100k URLs from Blink and DMOZ:
- urlparse4 ;-)
- CPython's urlparse
- urlparse2
- YURL
- uritools
- pygurl / gurl-cython
- 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:
Feel free to submit pull requests to add new ones!
We'd love to hear your feedback! Feel free to look at the issues on GitHub and open new ones if needed :)