pyarrow.dataset.CsvFileFormat¶

class pyarrow.dataset.CsvFileFormat(ParseOptions parse_options=None, default_fragment_scan_options=None, ConvertOptions convert_options=None, ReadOptions read_options=None)¶

Bases: FileFormat

FileFormat for CSV files.

Parameters:

parse_optionspyarrow.csv.ParseOptions: Options regarding CSV parsing.
default_fragment_scan_optionsCsvFragmentScanOptions: Default options for fragments scan.
convert_optionspyarrow.csv.ConvertOptions: Options regarding value conversion.
read_optionspyarrow.csv.ReadOptions: General read options.

__init__(*args, **kwargs)¶

Methods

`__init__`(args, *kwargs)
`equals`(self, CsvFileFormat other)
`inspect`(self, file[, filesystem])	Infer the schema of a file.
`make_fragment`(self, file[, filesystem])	Make a FileFragment from a given file.
`make_write_options`(self, **kwargs)

Attributes

`default_extname`
`default_fragment_scan_options`
`parse_options`

default_extname¶

default_fragment_scan_options¶

equals(self, CsvFileFormat other)¶

inspect(self, file, filesystem=None)¶

Infer the schema of a file.

Parameters:

filefile-like object, path-like or str: The file or file path to infer a schema from.
filesystemFilesystem, optional: If filesystem is given, file must be a string and specifies the path of the file to read from the filesystem.

Returns:

schemaSchema: The schema inferred from the file

make_fragment(self, file, filesystem=None, Expression partition_expression=None)¶

Make a FileFragment from a given file.

Parameters:

filefile-like object, path-like or str: The file or file path to make a fragment from.
filesystemFilesystem, optional: If filesystem is given, file must be a string and specifies the path of the file to read from the filesystem.
partition_expressionExpression, optional: An expression that is guaranteed true for all rows in the fragment. Allows fragment to be potentially skipped while scanning with a filter.

Returns:

fragmentFragment: The file fragment

make_write_options(self, **kwargs)¶

parse_options¶

pyarrow.dataset.FileFormat

pyarrow.dataset.CsvFragmentScanOptions