We are deploying some changes to check50 and submit50. If you're having trouble using check50 or submit50 in the CS50 IDE, you may run:
sudo pip3 install --upgrade check50 submit50
If you're using CS50 Sandbox or CS50 Lab, you may run:
pip3 install --upgrade check50 submit50
for now to upgrade the versions of both tools. These versions will eventually be upgraded automatically too once the deployment is complete. Let firstname.lastname@example.org
know if you need further help!