I/O#

I/O Utility Classes#

class pylibcudf.io.types.SinkInfo(list sinks)#

A class containing details on a source to read from.

For details, see cudf::io::sink_info.

Parameters:

sinkslist of str, PathLike, BytesIO, StringIO

A homogeneous list of sinks (this can be a string filename, bytes, or one of the Python I/O classes) to read from.

Mixing different types of sinks will raise a ValueError.

class pylibcudf.io.types.SourceInfo(list sources)#

A class containing details on a source to read from.

For details, see cudf::io::source_info.

Parameters:

sourcesList[Union[str, os.PathLike, bytes, io.BytesIO, DataSource]]

A homogeneous list of sources to read from.

Mixing different types of sources will raise a ValueError.

class pylibcudf.io.types.TableWithMetadata(Table tbl, list column_names) A container holding a table and its associated metadata (e.g. column names)#

A container holding a table and its associated metadata (e.g. column names)

For details, see cudf::io::table_with_metadata.

Parameters:

tblTable: The input table.
column_nameslist: A list of tuples each containing the name of each column and the names of its child columns (in the same format). e.g. [(“id”, []), (“name”, [(“first”, []), (“last”, [])])]

Attributes

`child_names`	Return a dictionary mapping the names of columns with children to the names of their child columns
`columns`	Return a list containing the columns of the table
`per_file_user_data`	Returns a list containing a dict containing file-format specific metadata, for each file being read in.
`tbl`	tbl: pylibcudf.table.Table

Methods

column_names(self[, include_children])

Return a list containing the column names of the table

child_names#: Return a dictionary mapping the names of columns with children to the names of their child columns

column_names(self, include_children=False)#: Return a list containing the column names of the table

columns#: Return a list containing the columns of the table

per_file_user_data#: Returns a list containing a dict containing file-format specific metadata, for each file being read in.

tbl#: tbl: pylibcudf.table.Table

I/O#

I/O Utility Classes#

I/O Functions#