Merge pull request #743 from asafravid/master

self._history() graceful handling in case it fails

Author: ranaroussi

yfinance/base.py

@@ -522,20 +522,26 @@ def get_cashflow(self, proxy=None, as_dict=False, freq="yearly"):
     def get_dividends(self, proxy=None):
         if self._history is None:
             self.history(period="max", proxy=proxy)
-        dividends = self._history["Dividends"]
-        return dividends[dividends != 0]
+        if self._history is not None and "Dividends" in self._history:
+            dividends = self._history["Dividends"]
+            return dividends[dividends != 0]
+        return []
 
     def get_splits(self, proxy=None):
         if self._history is None:
             self.history(period="max", proxy=proxy)
-        splits = self._history["Stock Splits"]
-        return splits[splits != 0]
+        if self._history is not None and "Stock Splits" in self._history:
+            splits = self._history["Stock Splits"]
+            return splits[splits != 0]
+        return []
 
     def get_actions(self, proxy=None):
         if self._history is None:
             self.history(period="max", proxy=proxy)
-        actions = self._history[["Dividends", "Stock Splits"]]
-        return actions[actions != 0].dropna(how='all').fillna(0)
+        if self._history is not None and "Dividends" in self._history and "Stock Splits" in self._history:
+            actions = self._history[["Dividends", "Stock Splits"]]
+            return actions[actions != 0].dropna(how='all').fillna(0)
+        return []
 
     def get_isin(self, proxy=None):
         # *** experimental ***

yfinance/utils.py

@@ -45,7 +45,6 @@ def empty_df(index=[]):
 def get_json(url, proxy=None, session=None):
 
     session = session or _requests
-
     headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36'}
     html = session.get(url=url, proxies=proxy, headers=headers).text