A library for making xpath queries to arbitrary python objects and retreiving ‘subobjects’ as a result.
Originally came from porg which is a tool I implemented to query things from my Org-mode notes and logs. But perhaps there are be more uses to this!
See tests, but here’s a (made-up) example:
from hiccup import *
class Tree:
def __init__(self, node, *children):
self.node = node
self.children = children
__repr__ = lambda s: repr(s.__dict__)
left = Tree('left')
right = Tree('right')
tt = Tree('aaa', left, right)As an intermediate xml, it looks somewhat like that:
>>> print(Hiccup()._as_xmlstr(tt))
<Tree _python_id="140684831777792">
<children _python_id="140684845499144">
<Tree _python_id="140684831777848">
<children _python_id="140685393653832"/>
<node _python_id="140685362678000">left</node>
</Tree>
<Tree _python_id="140684831777680">
<children _python_id="140685393653832"/>
<node _python_id="140685362678056">right</node>
</Tree>
</children>
<node _python_id="140684856442808">aaa</node>
</Tree>to actually query, we can use hiccup.xfind or a hiccup.Hiccup class which allows some extra configuration.
res = xfind(tt, '//Tree[./node[text()="left"]]')
assert res is left