SonarSource delivers what is probably the best static code analyzer you can find on the market for Python. Based on our own Python analyzer, it can find code smells, bugs and security vulnerabilities. As for any product we develop at SonarSource, it was built on the following principles: depth, accuracy and speed.
SonarPython covers some well-established quality standards. The SonarPython capability is available in Eclipse and IntelliJ for developers (SonarLint) as well as throughout the development chain for automated code review with self-hosted SonarQube or on-line SonarCloud.
Code Coverage by Tests: SonarPython supports the import of test coverage reports generated by Ned Batchelder's Coverage.py.
SonarPython supports custom rules written in XPath.