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# Conf

class astropy.table.Conf

  Bases: `ConfigNamespace`

  Configuration parameters for `astropy.table`.

  Attributes Summary

  `auto_colname` | The template that determines the name of a column if it cannot be determined.
  `default_notebook_table_class` | The table class to be used in Jupyter notebooks when displaying tables (and not overridden).
  `format_size_threshold` | Maximum total size (product of all dimensions except the first) for displaying full multidimensional column elements.
  `replace_inplace` | Always use in-place update of a table column when using setitem, e.g. t['a'] = value.
  `replace_warnings` | List of conditions for issuing a warning when replacing a table column using setitem, e.g. t['a'] = value.

  Attributes Documentation

  auto_colname

    The template that determines the name of a column if it cannot be determined. Uses new-style (format method) string formatting.

  default_notebook_table_class

    The table class to be used in Jupyter notebooks when displaying tables (and not overridden). See <https://getbootstrap.com/css/#tables for a list of useful bootstrap classes.

  format_size_threshold

    Maximum total size (product of all dimensions except the first) for displaying full multidimensional column elements. If the size exceeds this threshold, only the first and last elements are shown with ‘..’. Otherwise, the full element is displayed. Default is 1 which shows only first and last (e.g., ‘1 .. 5’). Set to a large value like sys.maxsize for no limit.

  replace_inplace

    Always use in-place update of a table column when using setitem, e.g. t[‘a’] = value. This overrides the default behavior of replacing the column entirely with the new value when possible. This configuration option will be deprecated and then removed in subsequent major releases.

  replace_warnings

    List of conditions for issuing a warning when replacing a table column using setitem, e.g. t[‘a’] = value. Allowed options are ‘always’, ‘slice’, ‘refcount’, ‘attributes’.