# Generate a pub and privkey
# openssl genrsa 2048 > priv.pem
# cat priv.pem|openssl rsa -pubout > pub.pem

# encode.py:
import jwt
pubkey = open("priv.pem",'r').read()
key = "\n".join([l.lstrip() for l in pubkey.split("\n")])
claim = {'test': 'hello'}
token=jwt.encode(claim, key, algorithm='RS256')
print(token.decode())

# decode.py:
import jwt
pubkey = open("pub.pem", 'r').read()
token = input()
key = "\n".join([l.lstrip() for l in pubkey.split("\n")])
claims = jwt.decode(token, key, algorithms=['RS256'])
print(claims)

# $ python3 encode.py | python3 decode.py                                                                                                                                                                                                         ✔  3182  21:45:39
# {'test': 'hello'}