API reference

This page gives an overview of all public polars objects, functions and methods. All classes and functions exposed in polars.* namespace are public.

• Input/output
  • CSV
  • Feather/ IPC
  • Parquet
  • SQL
  • JSON
  • AVRO
  • Datasets
• Functions
  • Config
  • Conversion
  • Eager functions
  • Parallelization
• Series
  • Constructor
  • Attributes
  • Conversion
  • Aggregation
  • Descriptive stats
  • Boolean
  • Computations
  • Manipulation/ selection
  • Various
  • TimeSeries
  • Strings
  • Lists
  • Categories
  • Struct
• DataFrame
  • Constructor
  • Attributes
  • Conversion
  • Aggregation
  • Descriptive stats
  • Computations
  • Manipulation/ selection
  • Apply
  • Various
  • GroupBy
  • Pivot
• Expressions
  • Functions
  • Constructor
  • Attributes
  • Aggregation
  • Boolean
  • Computations
  • Manipulation/ selection
  • Column names
  • Apply
  • Window
  • TimeSeries
  • Strings
  • Lists
  • Categories
  • Struct
• LazyFrame
  • Attributes
  • Aggregation
  • Descriptive stats
  • Manipulation/ selection
  • Conversion
  • Apply
  • Various
  • GroupBy
• Testing
  • polars.testing.assert_series_equal
  • polars.testing.assert_frame_equal
• Config
  • polars.Config.set_utf8_tables
  • polars.Config.set_ascii_tables
  • polars.Config.set_tbl_width_chars
  • polars.Config.set_tbl_rows
  • polars.Config.set_tbl_cols
  • polars.Config.set_global_string_cache
  • polars.Config.unset_global_string_cache
  • polars.toggle_string_cache
  • polars.StringCache

<no title> Input/output