Traceback (most recent call last):


 "/home/jayendran/elephas-master/examples/ml_mlp.py", line 10, in <module>

from elephas.ml_model import ElephasEstimator


 "/usr/local/lib/python2.7/dist-packages/elephas/ml_model.py", line 6, in <module>

from pyspark.ml.util import keyword_only
ImportError: cannot import name keyword_only

Traceback (most recent call last):


 "manage.py", line 23, in <module>

execute_from_command_line(sys.argv)


 "/root/.pyenv/versions/venv-sspanel/lib/python3.6/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line

utility.execute()


 "/root/.pyenv/versions/venv-sspanel/lib/python3.6/site-packages/django/core/management/__init__.py", line 377, in execute

django.setup()


 "/root/.pyenv/versions/venv-sspanel/lib/python3.6/site-packages/django/__init__.py", line 24, in setup

apps.populate(settings.INSTALLED_APPS)


 "/root/.pyenv/versions/venv-sspanel/lib/python3.6/site-packages/django/apps/registry.py", line 114, in populate

app_config.import_models()


 "/root/.pyenv/versions/venv-sspanel/lib/python3.6/site-packages/django/apps/config.py", line 211, in import_models

self.models_module = import_module(models_module_name)


 "/root/.pyenv/versions/3.6.3/lib/python3.6/importlib/__init__.py", line 126, in import_module

return _bootstrap._gcd_import(name[level:], package, level)


 "<frozen importlib._bootstrap>", line 994, in _gcd_import


 "<frozen importlib._bootstrap>", line 971, in _find_and_load


 "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked


 "<frozen importlib._bootstrap>", line 665, in _load_unlocked


 "<frozen importlib._bootstrap_external>", line 678, in exec_module


 "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed


 "/root/.pyenv/versions/venv-sspanel/lib/python3.6/site-packages/jet/models.py", line 3, in <module>

from django.utils.encoding import python_2_unicode_compatible
ImportError: cannot import name 'python_2_unicode_compatible'
