ABCpdf .NET PDF Component Documentation - ZZ Python PythonScope EvalString Function

EvalString Function

Evaluates a Python expression and gets its string value.

Syntax

[C#]
string EvalString(string expr, in options)

ObjectDisposedException: Thrown when this PythonScope has been disposed of. ArgumentNullException: Thrown when expr is null. InvalidCastException: Thrown when the result is neither a string nor None.

Params

Name	Description
expr	A Python expression.
options	Options for running Python code.
return	The string value of the result, or null if the result is None.

Notes

Evaluates a Python expression and gets its string value.example: To get the version of Docling:.

Example

For example to get the version of Docling you might use code of the following form.

var options = new PythonOptions();
options.Initialize(PythonEnvironment.Current, null);
using var rt = PythonEnvironment.Current.GetRuntime();
using var scope = rt.CreateScope();
rt.StdOutWriter = Console.Out;
rt.StdErrWriter = Console.Error;
rt.AutoInitializeRuntime(scope, null);
var result = scope.EvalString("__import__('importlib.metadata', fromlist=['metadata']).version('docling')\n");
Console.WriteLine(result);