diff --git a/freqtrade/data/dataprovider.py b/freqtrade/data/dataprovider.py
index d25c1b553..0e8031554 100644
--- a/freqtrade/data/dataprovider.py
+++ b/freqtrade/data/dataprovider.py
@@ -105,6 +105,8 @@ class DataProvider:
         """
         Return pair candle (OHLCV) data, either live or cached historical -- depending
         on the runmode.
+        Only combinations in the pairlist or which have been specified as informative pairs
+        will be available.
         :param pair: pair to get the data for
         :param timeframe: timeframe to get data for
         :return: Dataframe for this pair
@@ -120,23 +122,17 @@ class DataProvider:
             logger.warning(f"No data found for ({pair}, {timeframe}, {candle_type}).")
         return data
 
-    def get_analyzed_dataframe(
-        self,
-        pair: str,
-        timeframe: str,
-        candle_type: str = ''
-    ) -> Tuple[DataFrame, datetime]:
+    def get_analyzed_dataframe(self, pair: str, timeframe: str) -> Tuple[DataFrame, datetime]:
         """
         Retrieve the analyzed dataframe. Returns the full dataframe in trade mode (live / dry),
         and the last 1000 candles (up to the time evaluated at this moment) in all other modes.
         :param pair: pair to get the data for
         :param timeframe: timeframe to get data for
-        :param candle_type: '', mark, index, premiumIndex, or funding_rate
         :return: Tuple of (Analyzed Dataframe, lastrefreshed) for the requested pair / timeframe
             combination.
             Returns empty dataframe and Epoch 0 (1970-01-01) if no dataframe was cached.
         """
-        pair_key = (pair, timeframe, candle_type)
+        pair_key = (pair, timeframe, '')
         if pair_key in self.__cached_pairs:
             if self.runmode in (RunMode.DRY_RUN, RunMode.LIVE):
                 df, date = self.__cached_pairs[pair_key]
diff --git a/freqtrade/data/history/hdf5datahandler.py b/freqtrade/data/history/hdf5datahandler.py
index 34a6babb3..ebe55a87e 100644
--- a/freqtrade/data/history/hdf5datahandler.py
+++ b/freqtrade/data/history/hdf5datahandler.py
@@ -37,12 +37,7 @@ class HDF5DataHandler(IDataHandler):
                 if match and len(match.groups()) > 1]
 
     @classmethod
-    def ohlcv_get_pairs(
-        cls,
-        datadir: Path,
-        timeframe: str,
-        candle_type: str = ''
-    ) -> List[str]:
+    def ohlcv_get_pairs(cls, datadir: Path, timeframe: str, candle_type: str = '') -> List[str]:
         """
         Returns a list of all pairs with ohlcv data available in this datadir
         for the specified timeframe
@@ -88,8 +83,7 @@ class HDF5DataHandler(IDataHandler):
         ds.close()
 
     def _ohlcv_load(self, pair: str, timeframe: str,
-                    timerange: Optional[TimeRange] = None,
-                    candle_type: str = '') -> pd.DataFrame:
+                    timerange: Optional[TimeRange] = None, candle_type: str = '') -> pd.DataFrame:
         """
         Internal method used to load data for one pair from disk.
         Implements the loading and conversion to a Pandas dataframe.
diff --git a/freqtrade/data/history/idatahandler.py b/freqtrade/data/history/idatahandler.py
index 1a8e31094..8181d774e 100644
--- a/freqtrade/data/history/idatahandler.py
+++ b/freqtrade/data/history/idatahandler.py
@@ -38,12 +38,7 @@ class IDataHandler(ABC):
         """
 
     @abstractclassmethod
-    def ohlcv_get_pairs(
-        cls,
-        datadir: Path,
-        timeframe: str,
-        candle_type: str = ''
-    ) -> List[str]:
+    def ohlcv_get_pairs(cls, datadir: Path, timeframe: str, candle_type: str = '') -> List[str]:
         """
         Returns a list of all pairs with ohlcv data available in this datadir
         for the specified timeframe
@@ -217,12 +212,7 @@ class IDataHandler(ABC):
             if timerange_startup:
                 self._validate_pairdata(pair, pairdf, timerange_startup)
                 pairdf = trim_dataframe(pairdf, timerange_startup)
-                if self._check_empty_df(
-                    pairdf,
-                    pair,
-                    timeframe,
-                    warn_no_data
-                ):
+                if self._check_empty_df(pairdf, pair, timeframe, warn_no_data):
                     return pairdf
 
             # incomplete candles should only be dropped if we didn't trim the end beforehand.
@@ -234,13 +224,7 @@ class IDataHandler(ABC):
             self._check_empty_df(pairdf, pair, timeframe, warn_no_data)
             return pairdf
 
-    def _check_empty_df(
-        self,
-        pairdf: DataFrame,
-        pair: str,
-        timeframe: str,
-        warn_no_data: bool
-    ):
+    def _check_empty_df(self, pairdf: DataFrame, pair: str, timeframe: str, warn_no_data: bool):
         """
         Warn on empty dataframe
         """
@@ -253,12 +237,7 @@ class IDataHandler(ABC):
             return True
         return False
 
-    def _validate_pairdata(
-        self,
-        pair,
-        pairdata: DataFrame,
-        timerange: TimeRange
-    ):
+    def _validate_pairdata(self, pair, pairdata: DataFrame, timerange: TimeRange):
         """
         Validates pairdata for missing data at start end end and logs warnings.
         :param pairdata: Dataframe to validate
diff --git a/freqtrade/data/history/jsondatahandler.py b/freqtrade/data/history/jsondatahandler.py
index 0cd3bb33f..9d3acdcaf 100644
--- a/freqtrade/data/history/jsondatahandler.py
+++ b/freqtrade/data/history/jsondatahandler.py
@@ -37,12 +37,7 @@ class JsonDataHandler(IDataHandler):
                 if match and len(match.groups()) > 1]
 
     @classmethod
-    def ohlcv_get_pairs(
-        cls,
-        datadir: Path,
-        timeframe: str,
-        candle_type: str = ''
-    ) -> List[str]:
+    def ohlcv_get_pairs(cls, datadir: Path, timeframe: str, candle_type: str = '') -> List[str]:
         """
         Returns a list of all pairs with ohlcv data available in this datadir
         for the specified timeframe
@@ -78,12 +73,7 @@ class JsonDataHandler(IDataHandler):
         :param candle_type: '', mark, index, premiumIndex, or funding_rate
         :return: None
         """
-        filename = self._pair_data_filename(
-            self._datadir,
-            pair,
-            timeframe,
-            candle_type
-        )
+        filename = self._pair_data_filename(self._datadir, pair, timeframe, candle_type)
         _data = data.copy()
         # Convert date to int
         _data['date'] = _data['date'].view(np.int64) // 1000 // 1000