[python][flask]existing endpoint function flask AssertionError: View function mapping is overwriting an existing endpoint function:

 File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/Flask-0.10.1-py2.7.egg/flask/app.py", line 62, in wrapper_func
    return f(self, *args, **kwargs)
  File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/Flask-0.10.1-py2.7.egg/flask/app.py", line 984, in add_url_rule
    'existing endpoint function: %s' % endpoint)
AssertionError: View function mapping is overwriting an existing endpoint function: posts.list_board

existing endpoint function flask

Flask requires you to associate a single 'view function' with an 'endpoint'. You are calling Main.as_view('main') twice which creates two different functions (exactly the same functionality but different in memory signature). Short story, you should simply do

main_view_func = Main.as_view('main')

app.add_url_rule('/',
             view_func=main_view_func,
             methods=["GET"])

app.add_url_rule('/<page>/',
             view_func=main_view_func,
             methods=["GET"])

python - AssertionError: View function mapping is overwriting an existing endpoint function: main - Stack Overflow
http://stackoverflow.com/questions/17256602/assertionerror-view-function-mapping-is-overwriting-an-existing-endpoint-functi