Django : psycopg2.OperationalError: FATAL: password authentication failed for user 'nouman'

Django : psycopg2.OperationalError: FATAL: password authentication failed for user "nouman"
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Django : psycopg2.OperationalError: FATAL: password authentication failed for user "nouman"
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: "nouman" password authentication Django psycopg2.OperationalError: FATAL: failed for user