This document discusses challenges with building HTTP libraries in Python due to differences in how libraries handle I/O operations. Specifically, libraries either integrate I/O directly or use concurrency primitives, limiting code reuse. The author argues this wasted effort could be avoided by separating I/O handling from other concerns. As an example, the hyper-h2 library builds a toolbox around a common HTTP/2 implementation without integrating I/O. In the conclusion, the author asks for help and invites questions.
![============================= test session starts ==============================
platform darwin -- Python 2.7.11, pytest-2.8.5, py-1.4.31, pluggy-0.3.1
rootdir: /Users/cory/Documents/Python/hyper-h2, inifile:
plugins: hypothesis-1.19.0, cov-2.2.0, xdist-1.13.1
gw0 [513] / gw1 [513] / gw2 [513] / gw3 [513]
scheduling tests via LoadScheduling
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--------------- coverage: platform darwin, python 2.7.11-final-0 ---------------
Name Stmts Miss Branch BrPart Cover Missing
----------------------------------------------------------------
h2/__init__.py 2 0 0 0 100%
h2/connection.py 425 0 96 0 100%
h2/errors.py 17 0 0 0 100%
h2/events.py 95 0 4 0 100%
h2/exceptions.py 41 0 0 0 100%
h2/frame_buffer.py 55 0 18 0 100%
h2/settings.py 74 0 20 0 100%
h2/stream.py 286 0 46 0 100%
h2/utilities.py 45 0 24 0 100%
----------------------------------------------------------------
TOTAL 1040 0 208 0 100%
========================== 513 passed in 6.69 seconds ==========================](https://image.slidesharecdn.com/protocollibrariestherightway-160712050331/85/Protocol-libraries-the-right-way-24-320.jpg)
