black formatting on quotes

Author: simongarisch

pandas_datareader/yahoo/daily.py

@@ -199,7 +199,7 @@ def _read_one_data(self, url, params):
                 def split_ratio(row):
                     if float(row["Numerator"]) > 0:
                         if ":" in row["Splitratio"]:
-                            n, m = row["Splitratio"].split(':')
+                            n, m = row["Splitratio"].split(":")
                             return float(m) / float(n)
                         else:
                             return eval(row["Splitratio"])