minor

Author: Chilipp

setup.py

@@ -41,8 +41,6 @@ def run_tests(self):
         'Topic :: Scientific/Engineering :: GIS',
         'Topic :: Scientific/Engineering',
         'License :: OSI Approved :: GNU General Public License v2 (GPLv2)',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3 :: Only',
         'Programming Language :: Python :: 3.6',
@@ -61,6 +59,7 @@ def run_tests(self):
       author_email='philipp.sommer@hzg.de',
       license="GPLv2",
       packages=find_packages(exclude=['docs', 'tests*', 'examples']),
+      python_requires=">=3.7",
       install_requires=[
           'psyplot',
           'psy-simple>=1.3.0',