import rjmespath

print(rjmespath.search('foo.bar', '{"foo": {"bar": "baz"}}'))

In [1]: import jmespath

In [2]: import rjmespath

In [3]: %timeit jmespath.compile('foo')
436 ns ± 0.478 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)

In [4]: %timeit rjmespath.compile('foo')
354 ns ± 0.583 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)

In [5]: %timeit jmespath.search('foo.bar', {"foo": {"bar": "baz"}})
2.74 µs ± 10.1 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)

In [6]: %timeit rjmespath.search('foo.bar', '{"foo": {"bar": "baz"}}')
1.21 µs ± 12.3 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)