def _to_frame(self, usecols, chunk_cnt, show_prog):
_c = Property()
_c.lineno = 0
_c.linecnt = get_line_count(self.abspath)
_c.show_prog = show_prog
_c.chunk_cnt = chunk_cnt
return pd.concat(self._to_frame_gen(_c, usecols))
def _to_frame_prop(self, title, show_prog=True):
c = Property()
c.fileno = 0
c.filecnt = len(self.files)
c.files = self.files
c.show_prog = show_prog
c.pg = ProgressBar(title, c.filecnt)
return c
