DictPath

Extended dict for Python. Make easy to extract complicated nested dict.

Installation

pip3 install dict-path

Getting and setting value with path

No more boilerplate code to extract or inject nested dict

What you do previously

test_dict = {'foo1':{'foo2':{'foo3':{'foo4':'bar'}}}}
foo1 = test_dict['foo1']
if foo1:
   foo2 = foo1['foo2']
   if foo2:
       foo3 = foo2['foo3']
       if foo3:
           foo4 = foo3['foo4'] #finally, get the result: bar1

What you can do NOW

test_dict = {'foo1':{'foo2':{'foo3':{'foo4':'bar'}}}}
data = DictPath(test_dict)
data.get('foo1/foo2/foo3/foo4') #result: bar

Set value with easy

data.set('foo1/foo2/foo3/foo5', 'bar1')
data.get('foo1/foo2/foo3/foo5') #result: bar1

Do not want to use new Object? no worries, we have a method that you can call directly

from dict_path import extract_dict, inject_dict

test_dict = {'foo1':{'foo2':{'foo3':{'foo4':'bar'}}}}
extract_dict(test_dict, 'foo1/foo2/foo3/foo4') #result: bar

inject_dict(test_dict, 'foo1/foo2/foo3/foo5', 'bar1')}
extract_dict(test_dict, 'foo1/foo2/foo3/foo5') #result: bar1

Concept

DictPath is basically a normal python dict, nothing different

# A DictPath keeps a reference to the original initializing dict:

normal_dict = {'foo1':{'foo2':{'foo3':{'foo4':'bar'}}}}
dic_path = DictPath(normal_dict)
> normal_dict == dic_path
---> True
> dic_path.dict is normal_dict
---> True

You can also get a deep copy:

joe = DictPath(user, deepcopy=True)
> joe == user
---> True
> joe.dict is user
---> False

Invalid path will return None

from dict_path import DictPath

test_dict = {'foo1':{'foo2':{'foo3':{'foo4':'bar'}}}}
data = DictPath(test_dict)
data.get('foo1/foo2/foo3/foo4/foo6')
#result: None

Set up unknown path will create an actual dict

from dict_path import DictPath

test_dict = {'foo1':{'foo2':{'foo3':{'foo4':'bar'}}}}
data = DictPath(test_dict)
data.set('foo1/foo2/foo3/foo5/foo6/foo7/foo8/', 'bar1')
data.get('foo1/foo2/foo3/foo5/foo6/foo7/foo8/')
#result: bar1

Its also working with array

Note: For now its only working with get or extract_dict.

from dict_path import extract_dict, DictPath

test_dict = {'foo1':{'foo2':[{'foo3':'bar'},{'foo4':[[{'foo5': 'bar'}]]}]}}
data = DictPath(test_dict)
data.get('foo1/foo2/1/foo4/0/0/foo5/')
#result: bar

extract_dict(test_dict, 'foo1/foo2/1/foo4/0/0/foo5/')

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT