This is documentation for an old release of SciPy (version 1.3.0). Read this page Search for this page in the documentation of the latest stable release (version 1.15.1).

scipy.optimize.OptimizeResult.pop

OptimizeResult.pop(k[, d]) → v, remove specified key and return the corresponding value.

If key is not found, d is returned if given, otherwise KeyError is raised