Hello, and thanks for your contribution!

I'm a bot set up to make sure that the project can legally accept your contribution by verifying you have signed the PSF contributor agreement (CLA).

Unfortunately our records indicate you have not signed the CLA. For legal reasons we need you to sign this before we can look at your contribution. Please follow the steps outlined in the CPython devguide to rectify this issue.

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Thanks again to your contribution and we look forward to looking at it!

I signed the CLA (my bugtracker name is "yzongyue").
Please remove the "CLA not signed label"

Closed as a duplicate.