Merge pull request #793 from cottrell/fix

Handle pandas urlencode removal.

Author: bashtage

pandas_datareader/base.py

@@ -4,7 +4,7 @@
 
 import numpy as np
 from pandas import DataFrame, concat, read_csv
-from pandas.io.common import urlencode
+from urllib.parse import urlencode
 import requests
 
 from pandas_datareader._utils import (

pandas_datareader/iex/__init__.py

@@ -1,7 +1,7 @@
 import json
 
 import pandas as pd
-from pandas.io.common import urlencode
+from urllib.parse import urlencode
 
 from pandas_datareader.base import _BaseReader