Improve some typing

freqtrade/configuration/configuration.py

@@ -490,7 +490,8 @@ class Configuration:
             if not pairs_file.exists():
                 raise OperationalException(f'No pairs file found with path "{pairs_file}".')
             config['pairs'] = load_file(pairs_file)
-            config['pairs'].sort()
+            if isinstance(config['pairs'], list):
+                config['pairs'].sort()
             return
 
         if 'config' in self.args and self.args['config']:
@@ -501,5 +502,5 @@ class Configuration:
             pairs_file = config['datadir'] / 'pairs.json'
             if pairs_file.exists():
                 config['pairs'] = load_file(pairs_file)
-                if 'pairs' in config:
+                if 'pairs' in config and isinstance(config['pairs'], list):
                     config['pairs'].sort()

freqtrade/configuration/directory_operations.py

@@ -15,7 +15,7 @@ def create_datadir(config: Dict[str, Any], datadir: Optional[str] = None) -> Pat
     folder = Path(datadir) if datadir else Path(f"{config['user_data_dir']}/data")
     if not datadir:
         # set datadir
-        exchange_name = config.get('exchange', {}).get('name').lower()
+        exchange_name = config.get('exchange', {}).get('name', '').lower()
         folder = folder.joinpath(exchange_name)
 
     if not folder.is_dir():

freqtrade/strategy/hyper.py

@@ -69,7 +69,7 @@ class HyperStrategyMixin:
     @classmethod
     def detect_all_parameters(cls) -> Dict:
         """ Detect all parameters and return them as a list"""
-        params: Dict = {
+        params: Dict[str, Any] = {
             'buy': list(cls.detect_parameters('buy')),
             'sell': list(cls.detect_parameters('sell')),
             'protection': list(cls.detect_parameters('protection')),
@@ -148,7 +148,7 @@ class HyperStrategyMixin:
         """
         Returns list of Parameters that are not part of the current optimize job
         """
-        params = {
+        params: Dict[str, Dict] = {
             'buy': {},
             'sell': {},
             'protection': {},

freqtrade/strategy/parameters.py

@@ -97,6 +97,8 @@ class NumericParameter(BaseParameter):
 class IntParameter(NumericParameter):
     default: int
     value: int
+    low: int
+    high: int
 
     def __init__(self, low: Union[int, Sequence[int]], high: Optional[int] = None, *, default: int,
                  space: Optional[str] = None, optimize: bool = True, load: bool = True, **kwargs):

pyproject.toml

@@ -50,3 +50,6 @@ exclude = [
   "build_helpers/*.py",
 ]
 ignore = ["freqtrade/vendor/**"]
+
+# Align pyright to mypy config
+strictParameterNoneValue = false