Symbol Parameters Objects

Note that these objects are internal and can’t be created manually. They can only be returned with other onetick.py functions or methods, e.g. onetick.py.Source.to_symbol_param()

class _SymbolParamSource

Bases: object

Internal container that provides access to symbol parameters. The object is read-only, you can only get symbol parameters with it.

property schema

Represents actual python data schema in the column name -> type format.

__getitem__(key)

Get symbol parameter with corresponding key. Raises an error if such column does not exist.

class _SymbolParamColumn

Bases: Column

Internal object representing OneTick’s symbol parameters. Can be used in other onetick.py methods to specify if object is symbol parameter.