java.sql.Connection.unwrap throws JavaException: Invalid python object for this argument about pyjnius HOT 4 CLOSED

pip install git+git://github.com/kivy/pyjnius.git

Downloading/unpacking git+git://github.com/kivy/pyjnius.git
  Cloning git://github.com/kivy/pyjnius.git to /tmp/pip-LCFF6F-build
  Running setup.py egg_info for package from git+git://github.com/kivy/pyjnius.git

Requirement already satisfied (use --upgrade to upgrade): cython in /usr/lib/pymodules/python2.7 (from jnius==1.1-dev)
Installing collected packages: jnius
  Running setup.py install for jnius
    building 'jnius' extension
    gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include -I/usr/include/linux -I/usr/include/python2.7 -c jnius/jnius.c -o build/temp.linux-x86_64-2.7/jnius/jnius.o
    gcc: error: jnius/jnius.c: No such file or directory
    gcc: fatal error: no input files
    compilation terminated.
    error: command 'gcc' failed with exit status 4
    Complete output from command /home/ian/my_new_env/bin/python -c "import setuptools;__file__='/tmp/pip-LCFF6F-build/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-TOMvhq-record/install-record.txt --single-version-externally-managed --install-headers /home/ian/my_new_env/include/site/python2.7:
    running install

running build

running build_py

creating build

creating build/lib.linux-x86_64-2.7

creating build/lib.linux-x86_64-2.7/jnius

copying jnius/reflect.py -> build/lib.linux-x86_64-2.7/jnius

copying jnius/__init__.py -> build/lib.linux-x86_64-2.7/jnius

running build_ext

building 'jnius' extension

creating build/temp.linux-x86_64-2.7

creating build/temp.linux-x86_64-2.7/jnius

gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include -I/usr/include/linux -I/usr/include/python2.7 -c jnius/jnius.c -o build/temp.linux-x86_64-2.7/jnius/jnius.o

gcc: error: jnius/jnius.c: No such file or directory

gcc: fatal error: no input files

compilation terminated.

error: command 'gcc' failed with exit status 4

----------------------------------------
Command /home/ian/my_new_env/bin/python -c "import setuptools;__file__='/tmp/pip-LCFF6F-build/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-TOMvhq-record/install-record.txt --single-version-externally-managed --install-headers /home/ian/my_new_env/include/site/python2.7 failed with error code 1 in /tmp/pip-LCFF6F-build
Storing complete log in /home/ian/.pip/pip.log