title: module 'jwt' has no attribute 'ExpiredSignature'
body: <p>I have been developing a Django application using graphene/graphql running over AWS using Docker alpine image. I have been using django-grapql-jwt-0.3.1 module for calling jwt-2.0.0 authentication in my application. Where it is calling ExpiredSignature from PyJWT instead of ExpiredSignatureError. And graphQL is returning &quot;module 'jwt' has no attribute 'ExpiredSignature'&quot; error. How to resolve the issue?</p>
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