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Some special functions and connectors for Pandas.

Project description


Some special functions and connectors for Pandas.


  • Python 3+ (Tested in 3.7)
  • numpy>=1.13.3
  • pandas>=0.25.0
  • pytest>=5.0.1
  • psycopg2-binary>=2.8.3
  • Unidecode>=1.0.22
  • xlrd>=1.2.0
  • XlsxWriter>=1.0.2
  • DailyLogger>=0.1.2
  • FreqObjectOps>=0.1.0

Install with pip

$ pip install GiantPandas


  1. Import the library.
    from GiantPandas import PandasOps, ExcelConnector, PsqlConnector
  2. Each of the imported submodules has several functions. Please refer to respective help for more information.


  1. PandasOps.get_row_count(dataframe): get row count of a dataframe
  2. PandasOps.get_dict_from_two_columns(dataframe, key_column, value_column, keep_duplicate_keys): get dictionary from two dataframe columns
  3. PandasOps.get_dataframe_with_all_permutations_from_dict(dict_with_list_values): create dataframe with all possible permutations from dict with values of type list
  4. PandasOps.set_column_as_index(dataframe, column_name, drop_original_column): set column as an index
  5. PandasOps.get_dict_of_column_name_to_type(dataframe): get dict of column name to their dtype
  6. PandasOps.get_column_names_by_type(dataframe, column_dtype): get all columns of desired dtype
  7. PandasOps.contains_all_integer_in_float_column(dataframe, column_name): check if all non-nan values in float columns are int
  8. PandasOps.set_column_names_to_alpha_numeric(dataframe): convert column name to alpha numeric
  9. PandasOps.set_column_names_to_snake_case(dataframe): convert column name to snake case
  10. PandasOps.exists_unnamed_headers(dataframe): check if a dataframe contains any unnamed headers
  11. PandasOps.exists_column(dataframe, column_name_list): check if a dataframe contains desired column
  12. PandasOps.get_maximum_length_of_dtype_object_values(dataframe, column_name): get maximum length of object in a column


  1. ExcelConnector.get_sheet_names(file): get all sheet names
  2. ExcelConnector.get_dataframe_from_excel(file, sheet_name, skip_rows_list): read excel sheet into a dataframe
  3. ExcelConnector.send_dataframe_to_excel(file, dataframe_to_sheet_name_tuple_list, write_index): write dataframe to an excel sheet


First, an instance must be created for establishing connection.

psql_connector = PsqlConnector(


  1. psql_connector.get_psql_query_results_as_dataframe(query): get results of a psql query as a dataframe
  2. psql_connector.send_dataframe_to_psql(dataframe, schema_name, table_name, if_exists): upload dataframe to psql


Demo script for saving results of PostgreSQL query into an excel file.

$ python3 demo/ -f test2.xlsx -H localhost -d postgres -u postgres -t test_table -sn Sheet1

Demo script for uploading a table from excel sheet into a PSQL database.

$ python3 demo/ -f tests/test.xlsx -H localhost -d postgres -u postgres -t test_table

© Samyak Ratna Tamrakar, 2019.

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