e2ab4ccd6cb5e306c66182ac8ff1ad2d8183df1c,cnvlib/gary.py,GenomicArray,_make_blank,#Any#,56

Before Change

    @classmethod
    def _make_blank(cls):
        Create an empty dataframe with the columns required by this class.
        table = pd.DataFrame({key: [] for key in cls._required_columns})
        for col, dtype in zip(cls._required_columns, cls._required_dtypes):
            table[col] = table[col].astype(dtype)
        return table

After Change

    def _make_blank(cls):
        Create an empty dataframe with the columns required by this class.
        spec = list(zip(cls._required_columns, cls._required_dtypes))
        try:
            arr = np.zeros(0, dtype=spec)
            return pd.DataFrame(arr)
        except TypeError as exc:
            logging.info("%s", locals())
            raise

    @classmethod
    def from_columns(cls, columns, meta_dict=None):
        Create a new instance from column arrays, given as a dict.
        table = pd.DataFrame.from_dict(columns)

Instances