CLN: flak8 compliance

Remove bare except

Author: bashtage

pandas_datareader/iex/__init__.py

@@ -1,8 +1,10 @@
 import json
+
 import pandas as pd
 from pandas.io.common import urlencode
 from pandas_datareader.base import _BaseReader
 
+
 # Data provided for free by IEX
 # Data is furnished in compliance with the guidelines promulgated in the IEX
 # API terms of service and manual
@@ -11,7 +13,6 @@
 
 
 class IEX(_BaseReader):
-
     """
     Serves as the base class for all IEX API services.
     """
@@ -56,7 +57,7 @@ def _output_error(self, out):
         """
         try:
             content = json.loads(out.text)
-        except:
+        except Exception:
             raise TypeError("Failed to interpret response as JSON.")
 
         for key, string in content.items():