Method _validate_coerce_renderers

plotly/io/_renderers.py:221–247

Input a string and validate that it contains the names of one or more valid renderers separated on '+' characters. If valid, return a list of the renderer names Parameters ---------- renderers_string: str Returns ------- lis

(self, renderers_string)

        ]

    def _validate_coerce_renderers(self, renderers_string):
        """
        Input a string and validate that it contains the names of one or more
        valid renderers separated on '+' characters.  If valid, return
        a list of the renderer names

        Parameters
        ----------
        renderers_string: str

        Returns
        -------
        list of str
        """
        # Validate value
        if not isinstance(renderers_string, str):
            raise ValueError("Renderer must be specified as a string")

        renderer_names = renderers_string.split("+")
        invalid = [name for name in renderer_names if name not in self]
        if invalid:
            raise ValueError(
                """
Invalid named renderer(s) received: {}""".format(str(invalid))
            )

        return renderer_names

    def __repr__(self):
        return """\