PythonUtil

QuantConnect.Util.PythonUtil

Bases: Object

Collection of utils for python objects processing

exception_line_shift

exception_line_shift: int

The python exception stack trace line shift to use

convert_to_symbols

convert_to_symbols(input: Any) -> Iterable[Symbol]

Convert Python input to a list of Symbols

Parameters:

Name	Type	Description	Default
input	Any	Object with the desired property	required

Returns:

Type	Description
Iterable[Symbol]	List of Symbols.

python_exception_message_parser

python_exception_message_parser(message: str) -> str

Parsers Exception.Message into a readable message

Parameters:

Name	Type	Description	Default
message	str	The python exception message	required

Returns:

Type	Description
str	String with relevant part of the stacktrace.

python_exception_parser

python_exception_parser(python_exception: Any) -> str

Parsers PythonException into a readable message

Parameters:

Name	Type	Description	Default
python_exception	Any	The exception to parse	required

Returns:

Type	Description
str	String with relevant part of the stacktrace.

python_exception_stack_parser

python_exception_stack_parser(value: str) -> str

Parsers PythonException.StackTrace into a readable message

Parameters:

Name	Type	Description	Default
value	str	String with the stacktrace information	required

Returns:

Type	Description
str	String with relevant part of the stacktrace.

to_coarse_fundamental_selector

to_coarse_fundamental_selector(
    py_object: Any,
) -> Callable[
    [Iterable[CoarseFundamental]], Iterable[Symbol]
]

Encapsulates a python method in coarse fundamental universe selector.

Parameters:

Name	Type	Description	Default
py_object	Any	The python method	required

Returns:

Type	Description
Callable[[Iterable[CoarseFundamental]], Iterable[Symbol]]	A Func{T, TResult} (parameter is IEnumerable{CoarseFundamental}, return value is IEnumerable{Symbol}) that encapsulates the python method.

to_fine_fundamental_selector

to_fine_fundamental_selector(
    py_object: Any,
) -> Callable[
    [Iterable[FineFundamental]], Iterable[Symbol]
]

Encapsulates a python method in fine fundamental universe selector.

Parameters:

Name	Type	Description	Default
py_object	Any	The python method	required

Returns:

Type	Description
Callable[[Iterable[FineFundamental]], Iterable[Symbol]]	A Func{T, TResult} (parameter is IEnumerable{FineFundamental}, return value is IEnumerable{Symbol}) that encapsulates the python method.