create compatibility code

freqtrade/configuration/deprecated_settings.py

@@ -67,3 +67,9 @@ def process_temporary_deprecated_settings(config: Dict[str, Any]) -> None:
             "'tradable_balance_ratio' and remove 'capital_available_percentage' "
             "from the edge configuration."
         )
+    if 'ticker_interval' in config:
+        logger.warning(
+            "DEPRECATED: "
+            "Please use 'timeframe' instead of 'ticker_interval."
+        )
+        config['timeframe'] = config['ticker_interval']

freqtrade/constants.py

@@ -71,7 +71,6 @@ CONF_SCHEMA = {
     'type': 'object',
     'properties': {
         'max_open_trades': {'type': ['integer', 'number'], 'minimum': -1},
-        'ticker_interval': {'type': 'string'},
         'timeframe': {'type': 'string'},
         'stake_currency': {'type': 'string'},
         'stake_amount': {

freqtrade/resolvers/strategy_resolver.py

@@ -50,6 +50,14 @@ class StrategyResolver(IResolver):
         if 'ask_strategy' not in config:
             config['ask_strategy'] = {}
 
+        if hasattr(strategy, 'ticker_interval') and not hasattr(strategy, 'timeframe'):
+            # Assign ticker_interval to timeframe to keep compatibility
+            if 'timeframe' not in config:
+                logger.warning(
+                    "DEPRECATED: Please migrate to using timeframe instead of ticker_interval."
+                    )
+                strategy.timeframe = strategy.ticker_interval
+
         # Set attributes
         # Check if we need to override configuration
         #             (Attribute name,                    default,     subkey)
@@ -80,6 +88,9 @@ class StrategyResolver(IResolver):
                 StrategyResolver._override_attribute_helper(strategy, config,
                                                             attribute, default)
 
+        # Assign deprecated variable - to not break users code relying on this.
+        strategy.ticker_interval = strategy.timeframe
+
         # Loop this list again to have output combined
         for attribute, _, subkey in attributes:
             if subkey and attribute in config[subkey]:

freqtrade/strategy/interface.py

@@ -85,8 +85,8 @@ class IStrategy(ABC):
     trailing_stop_positive_offset: float = 0.0
     trailing_only_offset_is_reached = False
 
-    # associated ticker interval
+    # associated timeframe
-    ticker_interval: str
+    timeframe: str
 
     # Optional order types
     order_types: Dict = {

tests/strategy/test_default_strategy.py

@@ -18,7 +18,6 @@ def test_default_strategy(result):
     metadata = {'pair': 'ETH/BTC'}
     assert type(strategy.minimal_roi) is dict
     assert type(strategy.stoploss) is float
-    assert type(strategy.ticker_interval) is str
     assert type(strategy.timeframe) is str
     indicators = strategy.populate_indicators(result, metadata)
     assert type(indicators) is DataFrame