fix dependency issues

outlines/types/airports.py

@@ -1,13 +1,7 @@
 """Generate valid airport codes."""
 from enum import Enum
 
-try:
-    from pyairports.airports import AIRPORT_LIST
-except ImportError:
-    raise ImportError(
-        'The `airports` module requires "pyairports" to be installed. You can install it with "pip install pyairports"'
-    )
-
+from pyairports.airports import AIRPORT_LIST
 
 AIRPORT_IATA_LIST = list(
     {(airport[3], airport[3]) for airport in AIRPORT_LIST if airport[3] != ""}

outlines/types/countries.py

@@ -1,12 +1,7 @@
 """Generate valid country codes and names."""
 from enum import Enum
 
-try:
-    import pycountry
-except ImportError:
-    raise ImportError(
-        'The `countries` module requires "pycountry" to be installed. You can install it with "pip install pycountry"'
-    )
+import pycountry
 
 ALPHA_2_CODE = [(country.alpha_2, country.alpha_2) for country in pycountry.countries]
 Alpha2 = Enum("Alpha_2", ALPHA_2_CODE)  # type:ignore

pyproject.toml

@@ -37,6 +37,7 @@ dependencies = [
    "requests",
    "tqdm",
    "datasets",
+   "typing_extensions",
    "pycountry",
    "pyairports",
 ]
@@ -64,7 +65,6 @@ test = [
 ]
 serve = [
     "vllm>=0.3.0",
-    "ray==2.9.0",
     "uvicorn",
     "fastapi",
     "pydantic>=2.0",