Fetch package version dynamically

Author: issy

setup.py

@@ -1,3 +1,5 @@
+import subprocess
+
 from setuptools import setup
 
 with open("README.md", "r") as fp:
@@ -6,7 +8,7 @@
 
 setup(
     name="jsondataclasses",
-    version="0.0.3",
+    version=subprocess.check_output(["git", "describe", "--tags"]).decode("ascii").replace("v", "").strip(),
     url="https://github.com/issy/python-jsondataclasses",
     license="MIT",
     description="Typed JSON dataclasses",