closed python access local plantuml server, always get initial uml image

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asked Jun 29, 2021 in Question / help by BruceLee (120 points)
closed Jun 30, 2021 by BruceLee
I set up a docker plantuml-server locally. and I generate plantuml txt send to plantuml-server througn python, but always get the initial uml image, like :

Bob -> Alice : hello
closed with the note: error url cause to this problem