* adjust minimum python requirement to 3.7 as stated in readme

* pyxcp is production ready

setup.py

@@ -114,7 +114,7 @@ def run(self):
         "build_py": CustomBuildPy,
         "develop": CustomDevelop,
     },
-    python_requires=">=3.6",
+    python_requires=">=3.7",
     include_package_data=True,
     install_requires=install_reqs,
     extras_require={"docs": ["sphinxcontrib-napoleon"], "develop": ["bumpversion"]},
@@ -130,7 +130,7 @@ def run(self):
         #   3 - Alpha
         #   4 - Beta
         #   5 - Production/Stable
-        "Development Status :: 4 - Beta",
+        "Development Status :: 5 - Production/Stable",
         # Indicate who your project is intended for
         "Intended Audience :: Developers",
         "Topic :: Software Development",
@@ -139,7 +139,6 @@ def run(self):
         "License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)",
         # Specify the Python versions you support here. In particular, ensure
         # that you indicate whether you support Python 2, Python 3 or both.
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",