This package contains Python bindings for jsonpath-rust library by besok.
The details regarding the JsonPath itself can be found here.
pip install jsonpath-rust-bindingsfrom jsonpath_rust_bindings import Finder sample = { "store": { "book": [ { "category": "reference", "author": "Nigel Rees", "title": "Sayings of the Century", "price": 8.95, }, { "category": "fiction", "author": "Evelyn Waugh", "title": "Sword of Honour", "price": 12.99, }, { "category": "fiction", "author": "Herman Melville", "title": "Moby Dick", "isbn": "0-553-21311-3", "price": 8.99, }, { "category": "fiction", "author": "J. R. R. Tolkien", "title": "The Lord of the Rings", "isbn": "0-395-19395-8", "price": 22.99, }, ], "bicycle": {"color": "red", "price": 19.95}, }, "expensive": 10, } queries = [ '$.store.book[*].author', '$..book[?(@.isbn)]', '$.store.*', '$..author', '$.store..price', '$..book[2]', # '$..book[-2]', '$..book[0,1]', '$..book[:2]', '$..book[1:2]', '$..book[-2:]', '$..book[2:]', '$.store.book[?(@.price<10)]', '$..book[?(@.price<=$.expensive)]', "$..book[?(@.author ~= '.*Rees')].price", '$..*', ] f = Finder(sample) for query in queries: # print(query, f.find(query), '\n') print(query) print(f.find(query)) print(f.find_data(query)) print(f.find_absolute_path(query)) # You will see a bunch of found items like # $.store.book[*].author # [JsonPathResult(data='Nigel Rees', path="$['store']['book'][0]['author']"), JsonPathResult(data='Evelyn Waugh', path="$['store']['book'][1]['author']"), JsonPathResult(data='Herman Melville', path="$['store']['book'][2]['author']"), JsonPathResult(data='J. R. R. Tolkien', path="$['store']['book'][3]['author']")] # ['Nigel Rees', 'Evelyn Waugh', 'Herman Melville', 'J. R. R. Tolkien'] # ["$['store']['book'][0]['author']", "$['store']['book'][1]['author']", "$['store']['book'][2]['author']", "$['store']['book'][3]['author']"]JsonPathResult has the following attributes:
- data: the found value
- path: the path to the found value
JsonPathResult can't be constructed from Python; it is only returned by Finder.find().
The current implementation is cloning the original PyObject data when converting it to the serde Value. It happens each time you're creating a new Finder instance. Try to reuse the same Finder instance for querying if it's possible.
Also, It has yet another consequence demonstrated in the following example:
>>> original_object_i_want_to_mutate = {'a': {'b': 'sample b'}} >>> from jsonpath_rust_bindings import Finder >>> f = Finder(original_object_i_want_to_mutate) >>> b_dict = f.find('$.a')[0].data >>> b_dict {'b': 'sample b'} >>> b_dict['new'] = 42 >>> original_object_i_want_to_mutate {'a': {'b': 'sample b'}}Clone the repository.
Update maturin if needed:
pip install maturin -UAdd your changes, then run:
maturin developUpdate CI:
maturin generate-ci github > ./.github/workflows/CI.yml