_build_names_mapper(rownames: 'list[str]', colnames: 'list[str]') -> 'tuple[dict[str, str], list[str], dict[str, str], list[str]]'
A row or column name is replaced if it is duplicate among the rows of the inputs, among the columns of the inputs or between the rows and the columns.
a dictionary with new row names as keys and original rownames as values
a list of rownames with duplicate names replaced by dummy names
a dictionary with new column names as keys and original column names as values
a list of column names with duplicate names replaced by dummy names
Given the names of a DataFrame's rows and columns, returns a set of unique row and column names and mappers that convert to original names.
The following pages refer to to this document either explicitly or contain code examples using this.
pandas.core.frame.DataFrame.rename
pandas.core.generic.NDFrame._rename
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