change the setup file so version is accessible

setup.py

@@ -0,0 +1,29 @@
+import os
+
+from setuptools import find_packages, setup
+
+version = {}
+with open(os.path.join("src", "pyxtend", "_version.py")) as fp:
+    exec(fp.read(), version)
+
+setup(
+    name="pyxtend",
+    version=version["__version__"],
+    author="Julius",
+    author_email="julius.simonelli@gmail.com",
+    description="Some functions for Python",
+    long_description=open("README.md").read(),
+    long_description_content_type="text/markdown",
+    url="https://github.com/jss367/pyxtend",
+    project_urls={
+        "Bug Tracker": "https://github.com/jss367/pyxtend/issues",
+    },
+    classifiers=[
+        "Programming Language :: Python :: 3",
+        "License :: OSI Approved :: MIT License",
+        "Operating System :: OS Independent",
+    ],
+    package_dir={"": "src"},
+    packages=find_packages(where="src"),
+    python_requires=">=3.8",
+)

src/pyxtend/__init__.py

@@ -1,2 +1,3 @@
+from ._version import __version__
 from .struct import *  # noqa
 from .vprint import *  # noqa

src/pyxtend/_version.py

@@ -0,0 +1 @@
+__version__ = "0.4.1"