Swap out tzwhere for TimezoneFinder. (#230)

* Swap out tzwhere for TimezoneFinder.

tzwhere is barely maintained and have not seen new
releases in five years. Swap it out for TimezoneFinder.

* Lock TimezoneFinder to v6.0.1.

Versions newer than 6.0.1 also bumps NumPy dependency
causing Python 3.7 to not work. This break Python 3.11
support.

* Updated Poetry lock.

CI now run local on Python 3.10.

Author: slyngshede

.github/workflows/ci.yml

@@ -1,9 +1,9 @@
 ---
 name: "CI"
-concurrency: # Cancel any existing runs of this workflow for this same PR
+concurrency:  # Cancel any existing runs of this workflow for this same PR
   group: "${{ github.workflow }}-${{ github.ref }}"
   cancel-in-progress: true
-on: # yamllint disable
+on:  # yamllint disable
   push:
     branches:
       - "main"

circuit_maintenance_parser/utils.py

@@ -6,7 +6,7 @@
 
 from geopy.exc import GeocoderUnavailable, GeocoderTimedOut, GeocoderServiceError  # type: ignore
 from geopy.geocoders import Nominatim  # type: ignore
-from tzwhere import tzwhere  # type: ignore
+from timezonefinder import TimezoneFinder  # type: ignore
 import backoff  # type: ignore
 
 from .errors import ParserError
@@ -39,7 +39,7 @@ class Geolocator:
     def timezone(cls):  # pylint: disable=no-self-argument
         """Load the timezone resolver."""
         if cls._timezone is None:
-            cls._timezone = tzwhere.tzwhere()
+            cls._timezone = TimezoneFinder()
             logger.info("Loaded local timezone resolver.")
         return cls._timezone
 
@@ -110,12 +110,12 @@ def city_timezone(self, city: str) -> str:
         if self.timezone is not None:
             try:
                 latitude, longitude = self.get_location(city)
-                timezone = self.timezone.tzNameAt(latitude, longitude)  # pylint: disable=no-member
+                timezone = self.timezone.timezone_at(lat=latitude, lng=longitude)  # pylint: disable=no-member
                 if not timezone:
                     # In some cases, given a latitued and longitued, the tzwhere library returns
                     # an empty timezone, so we try with the coordinates from the API as an alternative
                     latitude, longitude = self.get_location_from_api(city)
-                    timezone = self.timezone.tzNameAt(latitude, longitude)  # pylint: disable=no-member
+                    timezone = self.timezone.timezone_at(lat=latitude, lng=longitude)  # pylint: disable=no-member
 
                 if timezone:
                     logger.debug("Matched city %s to timezone %s", city, timezone)