Make pip install for Jython work by removing JPype1 requirement for Jython

README.rst

@@ -160,6 +160,9 @@ Changelog
 =========
 
 - Next version - unreleased
+
+  - Make pip install for Jython work by removing JPype1 requirement for Jython
+
 - 1.2.2 - 2020-06-04
 
   - Return (big) decimal types as long value if scale is zero (thanks

setup.py

@@ -20,9 +20,7 @@ import sys
 
 from setuptools import setup
 
-install_requires = []
+install_requires = ['JPype1 ; platform_python_implementation != "Jython"']
-if not sys.platform.lower().startswith('java'):
-    install_requires.append('JPype1')
 
 setup(
     #basic package data