Metadata naming the token is required and the API docs need to be updated to reflect this.
You want something like this:
body = swagger_client.IssueTokenRequest(
issue_address = "TUfp4Ss95xaKQPNGpbiZDsMPe4NR16CDiL",
amount = 10000,
divisibility = 0,
fee = 1000030000,
reissuable = False,
metadata = swagger_client.IssueTokenRequestMetadata(
token_name = "TEST",
issuer = "Me",
description = "My test token"
)
)