/usr/lib/python3/dist-packages/lxml/includes/uri.pxd is in python3-lxml 3.3.3-1ubuntu0.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | cdef extern from "libxml/uri.h":
ctypedef struct xmlURI
cdef xmlURI* xmlParseURI(char* str)
cdef void xmlFreeURI(xmlURI* uri)
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