zluipaiva / trace-dkey

Python library to trace path of a particular key inside a nested dict

trace-dkey

Python library to trace path of a particular key inside a nested dict

Installation

For stable version

• pip install trace-dkey

For developement

• git clone https://github.com/Agent-Hellboy/trace-dkey
• cd trace-dkey
• python -m venv .venv
• source .venv/bin/activate

Example

>>> from trace_dkey import trace
>>> l={'a':{'b':{'c':{'d':{'e':{'f':1}}}}}}
>>> print(trace(l,'f'))
[['a', 'b', 'c', 'd', 'e', 'f']]

Now you can query it as l['a']['b']['c']['d']['e']['f']

>>> l['a']['b']['c']['d']['e']['f']
1

General Info

The value returned by the trace function is an array of paths, where each path is an array of dictionary keys.

Because of that, the library can be used in a practical way by taking advantage of this format.

In the example below we use the returned path to iterate over the dictionary keys and print the key value:

from trace_dkey import trace
l={'a':{'b':{'c':{'d':{'e':{'f':1}}}}}}

paths = trace(l,'f')

for path in paths:
   dic = l
   for key in path:
      dic = dic[key]
   print(dic)

Contributing

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