Fix: get_historical_data returns warning and empty dataframe

.pre-commit-config.yaml

@@ -3,7 +3,7 @@ repos:
     rev: 'v0.941'  # Use the sha / tag to point at specific version
     hooks:
     -   id: mypy
-        additional_dependencies: ['types-requests', 'types-urllib3']
+        additional_dependencies: ['types-requests==2.31.0.1', 'types-urllib3']
 -   repo: https://github.com/psf/black
     rev: '22.3.0'
     hooks:

pyproject.toml

@@ -3,4 +3,4 @@ requires = [
     "setuptools>=42",
     "wheel"
 ]
-build-backend = "setuptools.build_meta"
+build-backend = "setuptools.build_meta"

src/ozon3/ozon3.py

@@ -558,10 +558,13 @@ def get_historical_data(
             # Take first search result
             search_result = self.get_city_station_options(city)
             if len(search_result) == 0:
-                raise Exception(
+                warnings.warn(
                     f'The search for city "{city}" returns no result. It is possible '
-                    "that the city does not have AQI station."
+                    "that the city does not have an AQI station."
                 )
+                return (
+                    pandas.DataFrame()
+                )  # Return an empty DataFrame to avoid further errors.
 
             first_result = search_result.iloc[0, :]