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 for inspiration.
urlparse
Differences with Python's 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'stest_urlparse.py
suite due to edge cases that Chromium's parser manages differently (usually in accordance to the RFCs, whichurlparse
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
- 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!
Feedback
We'd love to hear your feedback! Feel free to look at the issues on GitHub and open new ones if needed :)