Remove duplicate version info (#1608)

* Remove duplicate version info

* freeze package name to tortoise-orm

* fix missing assert

* fix Codacy Static Code Analysis issues

* fix lint error

tests/test_version.py

@@ -0,0 +1,19 @@
+import sys
+from pathlib import Path
+
+from tortoise import __version__
+
+if sys.version_info >= (3, 11):
+    import tomllib
+else:
+    import tomlkit as tomllib
+
+
+def _read_version():
+    text = Path("pyproject.toml").read_text()
+    data = tomllib.loads(text)
+    return data["tool"]["poetry"]["version"]
+
+
+def test_version():
+    assert _read_version() == __version__

tortoise/__init__.py

@@ -1,5 +1,6 @@
 import asyncio
 import importlib
+import importlib.metadata as importlib_metadata
 import json
 import os
 import warnings
@@ -690,7 +691,7 @@ async def do_stuff():
         loop.run_until_complete(connections.close_all(discard=True))
 
 
-__version__ = "0.20.1"
+__version__ = importlib_metadata.version("tortoise-orm")
 
 __all__ = [
     "Model",