• superpants@lemmy.world
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    1 year ago

    The python container should connect on postgres:5432 not localhost. To the web container, localhost is itself, not the physical host running docker

    • sunwoo1524@lemmy.worldOP
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      1 year ago

      I changed host to postgres:5432, but python made an error.

      sqlalchemy.exc.OperationalError: (psycopg2.OperationalError) could not translate host name "postgres" to address: Temporary failure in name resolution