switching to db instead of csv

kis_tools/gris/gris_coordinate_study/pull_coords.py

@@ -14,10 +14,15 @@ pos = pos_from_filename(fn)
 run = gris_run_number(fn)
 date = date_from_fn(fn)
 
-outfile = Path(__file__).parent / 'gris_l0_coords.csv'
+outfile = Path(__file__).parent / 'gris_coords.db'
 df = pd.DataFrame()
 ser = pd.Series(pos)
 df[f'gris_{date.strftime("%Y%m%d")}_{run:03d}'] = ser
 df = df.T
 df.index.name = 'obs_name'
-df.to_csv(outfile, mode='a', header=(not outfile.exists()))
+
+from sqlalchemy import create_engine
+
+db_name = 'sqlite:///' + str(outfile)
+engine = create_engine(str(db_name))
+df.to_sql('raw_from_l0', con=engine, if_exists='append', index_label='obs_name')