* Bump standards version to 3.9.3. + Update debian/copyright URI. * Export PYTHONWARNINGS=d in debian/rules to enable all warnings in Python code. * Make binary(-indep) target depend on build stamp file rather than build target. * Don't pass control file path to pyversions explicitly. * Remove ‘zip_safe = True’ from setup.py; this is a setuptools-specific option, but in Debian we use pure distutils. * Add “<< 2.8” to XS-Python-Version. The package requires porting to each Python version separately. * Test more comprehensively: try to re-bytecopile whole Python standard library. * Add DEP-8 tests.