python - Detecting multiple sessions from same user on Google App Engine -

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i writing application uses google user api , having google account can login. want prevent multiple users using same google account login simultaneously. basically, allow 1 user / account using application. running subscription service, need restrict users sharing accounts , simultaneously logging in.

can accomplish somehow in app engine using users module? if not, can please suggest alternate mechanism?

i using python on app engine.

yes can, you'll have build session tracking functionality yourself.


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