PYCH is an online, open source, Python code checking tool made in 3 hours from scratch. It uses Flakements script to check the code for errors and pep8 deviations. Flakements uses pep8 script and pyflakes so the accuracy of the checks depends on those two scripts. PYCH is not a debugger. You shouldn't rely on it to solve every problem. Think of PYCH as an extended lint tool with pep8 checks.
Just paste your code inside the textarea and click the submit button. Make sure your code is Python. There is no persistence, so the code is for your eyes only and has lifetime of 1 request. PYCH doesn't store any data.
We need to thank all developers/companies for the packages we used for PYCH