-r requirements.txt

# We support a Genshi treewalker that can be used to serialize Genshi

# streams.

genshi

# chardet can be used as a fallback in case we are unable to determine

# the encoding of a document.

chardet>=2.2

# lxml is supported with its own treebuilder ("lxml") and otherwise

# uses the standard ElementTree support

lxml ; platform_python_implementation == 'CPython'

# DATrie can be used in place of our Python trie implementation for

# slightly better parsing performance.

datrie ; platform_python_implementation == 'CPython'