launch_ipdb_on_exception() gives :Context manager 'generator' doesn't implement __enter__ and __exit__. [E1129]

Question

I am using: ipdb (ipdb==0.13.9).

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For the with launch_ipdb_on_exception(): line in code-block from answer for Launch an IPython shell on exception

from ipdb import launch_ipdb_on_exception

def main():
    with launch_ipdb_on_exception():
        # The rest of the code goes here.
        [...]

I am getting following warning message: [not-context-manager] Context manager 'generator' doesn't implement __enter__ and __exit__. [E1129]

What is the main cause of this error? How could I prevent this warning message?