Xpath like query for nested python dictionaries

Question

Is there a way to define a XPath type query for nested python dictionaries.

Something like this:

foo = {
  \'spam\':\'eggs\',
  \'morefoo\': {
               


        

Answer 1

If terseness is your fancy:

def xpath(root, path, sch='/'):
    return reduce(lambda acc, nxt: acc[nxt],
                  [int(x) if x.isdigit() else x for x in path.split(sch)],
                  root)

Of course, if you only have dicts, then it's simpler:

def xpath(root, path, sch='/'):
    return reduce(lambda acc, nxt: acc[nxt],
                  path.split(sch),
                  root)

Good luck finding any errors in your path spec tho ;-)