astro.files.types.csv

Module Contents

Classes

CSVFileType

Concrete implementation to handle CSV file type

class astro.files.types.csv.CSVFileType(path, normalize_config=None, load_options=None)

Bases: astro.files.types.base.FileType

Concrete implementation to handle CSV file type

Parameters:

• path (str) –

• normalize_config (dict | None) –

• load_options (astro.options.LoadOptions | None) –

property name

get file type

LOAD_OPTIONS_CLASS_NAME = ('PandasCsvLoadOptions', 'PandasLoadOptions')

export_to_dataframe(stream, columns_names_capitalization='original', **kwargs)

read csv file from one of the supported locations and return dataframe

Parameters:

• stream – file stream object

• columns_names_capitalization – determines whether to convert all columns to lowercase/uppercase in the resulting dataframe

Return type:

pandas.DataFrame

create_from_dataframe(df, stream)

Write csv file to one of the supported locations

Parameters:

• df (pandas.DataFrame) – pandas dataframe

• stream (io.TextIOWrapper) – file stream object

Return type:

None