python-amazon-sp-api/sp_api/util/key_maker.py at develop · SellerEngineSoftware/python-amazon-sp-api

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import re

class KeyMaker:

"""

Map the different keys amazon uses for the same property to a single one

Examples:

key_mapping = {

'sku': ['seller_sku', 'sellerSku'],

'title': ['product_name']

}

KeyMaker(key_mapping, deep=True).convert_keys({

'goo': {'x': {}},

'seller_sku': 1,

'product_name': {

'sellerSku': [

'seller_sku',

{

'sellerSku': 22,

'product_name': {

'title': 'Foo',

'x': 'bar'

}

]

}

})

"""

def __init__(self, key_mapping=None, *, deep=True):

if key_mapping is None:

key_mapping = {}

self.key_mapping = key_mapping

self.deep = deep

def convert_keys(self, data: dict or list):

"""

convert_keys(self, data: dict or list)

Map the different keys amazon uses for the same property to a single one

Args:

data: [dict] or dict

Returns:

Transformed data

"""

if isinstance(data, list):

return [self.convert_keys(d) for d in data]

if not isinstance(data, dict):

return data

return {

self._map_to_key_mapping(k): self.convert_keys(v) if self.deep else v

for k, v in data.items()

}

def _map_to_key_mapping(self, key):

for k, v in self.key_mapping.items():

if key in v or k == key:

return k

return self._replace_dash(key)

@staticmethod

def _replace_dash(key):

return key[0].lower() + ''.join(

word.title() if i > 0 else word for i, word in enumerate(re.sub(r'-|\s', '_', key[1:]).split('_')))

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