python - Couldn't import Django error when I try to startapp -

i work on pc's started work on projects on mac. run python 3 , when started new project did following:

1) in main project folder, installed virtualenv , activated it.

2) install django , gunicorn

3) did startproject

when try python3 manage.py startapp www error django not imported. below in terminal:

(venv) ab:directory ab$ pip freeze django==1.10 gunicorn==19.6.0  (venv) ab:directory ab$ ls directory   manage.py  (venv) ab:directory ab$ python3 manage.py startpap www  traceback (most recent call last):   file "manage.py", line 8, in <module>     django.core.management import execute_from_command_line importerror: no module named 'django'  during handling of above exception, exception occurred:  traceback (most recent call last):   file "manage.py", line 14, in <module>     import django importerror: no module named 'django'  during handling of above exception, exception occurred:  traceback (most recent call last):   file "manage.py", line 17, in <module>     "couldn't import django. sure it's installed , " importerror: couldn't import django. sure it's installed , available on pythonpath environment variable? did forget activate virtual environment? 

try using

python -m pip install django 

this safest way far know