Use importlib.metadata.version() for __version__

Replace hardcoded __VERSION__ = "0.1.9" in client.py with
importlib.metadata.version() sourced from pyproject.toml. This
fixes version drift (pyproject.toml had 0.1.10) and establishes
a single source of truth for the package version.

Closes #29

Author: dannywillems

leakix/__init__.py

@@ -1,4 +1,5 @@
-from leakix.client import __VERSION__ as __VERSION__
+from importlib.metadata import version
+
 from leakix.client import Client as Client
 from leakix.client import HostResult as HostResult
 from leakix.client import Scope as Scope
@@ -68,8 +69,10 @@
     SuccessResponse as SuccessResponse,
 )
 
+__version__ = version("leakix")
+
 __all__ = [
-    "__VERSION__",
+    "__version__",
     "Client",
     "HostResult",
     "Scope",

leakix/client.py

@@ -1,5 +1,6 @@
 import json
 from enum import Enum
+from importlib.metadata import version
 
 import requests
 from l9format import l9format
@@ -10,8 +11,6 @@
 from leakix.query import EmptyQuery, Query
 from leakix.response import ErrorResponse, RateLimitResponse, SuccessResponse
 
-__VERSION__ = "0.1.9"
-
 
 class Scope(Enum):
     SERVICE = "service"
@@ -38,7 +37,7 @@ def __init__(
         self.base_url = base_url if base_url else DEFAULT_URL
         self.headers = {
             "Accept": "application/json",
-            "User-agent": f"leakix-client-python/{__VERSION__}",
+            "User-agent": f"leakix-client-python/{version('leakix')}",
         }
         if api_key:
             self.headers["api-key"] = api_key