Automatic update from web-platform-testsUse the print function in some scripts.
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Use Python3-compatible except syntax.
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Prepare mathml/tools/utils/misc.py for python3.
wpt-commits: f1536eed16c7b743acbf9188150041f049b646b9, b762b7fa54e2e830b6e400fc5d8c369c95c53e82, 911d525247327484c66ef851d6219a9ef555b0ac
wpt-pr: 8839
wpt-commits: f1536eed16c7b743acbf9188150041f049b646b9, b762b7fa54e2e830b6e400fc5d8c369c95c53e82, 911d525247327484c66ef851d6219a9ef555b0ac
wpt-pr: 8839