Framework Pyramid - ModuleNotFoundError

hello j'ai récupéré le code du framework Pyramid mais j'ai malheureusement une erreur module pyramid manquant

Code:

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from wsgiref.simple_server import make_server
from pyramid.config import Configurator
from pyramid.response import Response
 
def hello_world(request):
    return Response('Hello World!')
 
if __name__ == '__main__':
    with Configurator() as config:
        config.add_route('hello', '/')
        config.add_view(hello_world, route_name='hello')
        app = config.make_wsgi_app()
    server = make_server('0.0.0.0', 6543, app)
    server.serve_forever()

Citation:

log ModuleNotFoundError: No module named 'pyramid'