interpolate

interpolate(prompt, *, variables=None, variable_start='{{', variable_end='}}')

Interpolate variables into a prompt

This is a light-weight wrapper around the Jinja2 templating engine, making it easier to interpolate dynamic data into a prompt template. Compared to f-strings, which expects you to wrap dynamic values in { }, this function expects { } instead, making it easier to include Python code and JSON in your prompt.

Parameters

Name	Type	Description	Default
prompt	str	The prompt to interpolate (as a string).	required
variables	Optional[dict[str, Any]]	A dictionary of variables to interpolate into the prompt. If not provided, the caller’s global and local variables are used.	None
variable_start	str	The string that marks the beginning of a variable.	'{{'
variable_end	str	The string that marks the end of a variable.	'}}'

Returns

Name	Type	Description
	str	The prompt with variables interpolated.

Examples

from chatlas import interpolate

x = 1
interpolate("The value of `x` is: {{ x }}")