:mod:`arche.rules.duplicates`
=============================

.. py:module:: arche.rules.duplicates


Module Contents
---------------

.. function:: find_by(df: pd.DataFrame, uniques: List[Union[str, List[str]]]) -> Result

   Find equal items rows in `df` by `uniques`. I.e. if two items have the same
   uniques's element value, they are considered duplicates.

   :param uniques: list containing columns and list of columns to identify duplicates.
   :param List of columns means that all list columns values should be equal.:

   :returns: Any duplicates


.. function:: find_by_tags(df: pd.DataFrame, tagged_fields: TaggedFields) -> Result

   Check for duplicates based on schema tags. In particular, look for items with
   the same `name_field` and `product_url_field`, and for uniqueness among `unique` field


.. function:: flatten(l: Any) -> Generator[str, None, None]