Function _check_keys_and_fill

plotly/_subplots.py:396–430

(name, arg, defaults)

    # ### Helper to validate coerce elements of lists of dictionaries ###
    def _check_keys_and_fill(name, arg, defaults):
        def _checks(item, defaults):
            if item is None:
                return
            if not isinstance(item, dict):
                raise ValueError(
                    """
Elements of the '{name}' argument to make_subplots must be dictionaries \
or None.
    Received value of type {typ}: {val}""".format(
                        name=name, typ=type(item), val=repr(item)
                    )
                )

            for k in item:
                if k not in defaults:
                    raise ValueError(
                        """
Invalid key specified in an element of the '{name}' argument to \
make_subplots: {k}
    Valid keys include: {valid_keys}""".format(
                            k=repr(k), name=name, valid_keys=repr(list(defaults))
                        )
                    )
            for k, v in defaults.items():
                item.setdefault(k, v)

        for arg_i in arg:
            if isinstance(arg_i, (list, tuple)):
                # 2D list
                for arg_ii in arg_i:
                    _checks(arg_ii, defaults)
            elif isinstance(arg_i, dict):
                # 1D list
                _checks(arg_i, defaults)

    # ### specs ###
    if specs is None: