Search a folder for data files

        .. versionchanged:: 0.6.0
            `path` is not searched recursively anymore

def _search_files(path):
        """Search a folder for data files

        .. versionchanged:: 0.6.0
            `path` is not searched recursively anymore
        """
        path = pathlib.Path(path)
        fifo = []

        for fp in path.glob("*"):
            if fp.is_dir():
                continue
            for fmt in formats:
                # series data is not supported in SeriesFolder
                if not fmt.is_series and fmt.verify(fp):
                    fifo.append((fp, fmt.__name__))
                    break

        # ignore qpimage formats if multiple formats were
        # detected.
        theformats = [ff[1] for ff in fifo]
        formset = set(theformats)
        if len(formset) > 1:
            fmts_qpimage = ["SingleHdf5Qpimage", "SeriesHdf5Qpimage"]
            fifo = [ff for ff in fifo if ff[1] not in fmts_qpimage]
        # ignore raw tif files if single_tif_phasics is detected
        if len(formset) > 1 and "SingleTifPhasics" in theformats:
            fmts_badtif = "SingleTifHolo"
            fifo = [ff for ff in fifo if ff[1] not in fmts_badtif]
        # otherwise, prevent multiple file formats
        theformats2 = [ff[1] for ff in fifo]
        formset2 = set(theformats2)
        if len(formset2) > 1:
            msg = "Qpformat does not support multiple different file " \
                  + "formats within one directory: {}".format(formset2)
            raise MultipleFormatsNotSupportedError(msg)
        # sort the lists
        fifo = sorted(fifo)
        return fifo