Make installation with pip possible

setup.py

@@ -0,0 +1,51 @@
+# This file is part of ENSO.
+#
+# Copyright (C) 2020 Sebastian Ehlert
+#
+# ENSO is free software: you can redistribute it and/or modify it under
+# the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# ENSO is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with ENSO. If not, see <https://www.gnu.org/licenses/>.
+
+from setuptools import setup
+from codecs import open
+from os import path
+
+here = path.abspath(path.dirname(__file__))
+
+with open(path.join(here, "README.md"), encoding="utf-8") as f:
+    long_description = f.read()
+
+setup(
+    name="enso",
+    version="2.0.1",
+    description="Energetic sorting of CREST CRE for automated NMR calculations",
+    long_description=long_description,
+    long_description_content_type="text/markdown",
+    url="https://github.com/grimme-lab/enso",
+    license="LGPL3",
+    classifiers=[
+        "Development Status :: 5 - Production/Stable",
+        "License :: OSI Approved :: LGPL3",
+        "Intended Audience :: Science/Research",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+        "Topic :: Scientific/Engineering :: Chemistry",
+    ],
+    package_dir={"": "."},
+    py_modules=["enso"],
+    entry_points={"console_scripts": ["enso=enso:main"]},
+    install_requires=[
+        "argparse",
+    ],
+)