Update repository URL; fix type hints in write_solution

pyproject.toml

@@ -1,11 +1,11 @@
 [tool.poetry]
 name = "vrplib"
 version = "1.3.0"
-description = "Python library for working with vehicle routing problem instances."
+description = "Python library for reading and writing VRP instances."
 authors = ["Leon Lan <[email protected]>"]
 license = "MIT"
 readme = "README.md"
-repository = "https:/leonlan/VRPLIB"
+repository = "https:/PyVRP/VRPLIB"
 
 [tool.poetry.dependencies]
 python = "^3.8"

vrplib/write/write_solution.py

@@ -1,8 +1,11 @@
-from typing import Any, Dict, List, Optional
+import os
+from typing import Any, Dict, List, Optional, Union
 
 
 def write_solution(
- path: str, routes: List[List[int]], data: Optional[Dict[str, Any]] = None
+ path: Union[str, os.PathLike],
+ routes: List[List[int]],
+ data: Optional[Dict[str, Any]] = None,
 ):
  """
  Writes a VRP solution to file following the VRPLIB convention.
@@ -14,8 +17,8 @@ def write_solution(
  routes
  A list of routes, each route denoting the order in which the customers
  are visited.
- **kwargs
- Optional keyword arguments. Each key-value pair is written to the
+ data
+ Optional data dictionary. Each key-value pair is written to the
  solution file as "{key}: {value}".
  """
  for route in routes: