1.11.0
testing: comment out an assert which fails on Python 3.9 for now
terminalwriter.should_do_markup: support $NO_COLOR
disable apiwarn tests for all pytest 3.1
Skip test_samefile_symlink on pypy3 on Windows
Drop support for EOL Python <= 2.6, 3.0-3.3
coverage: add NotImplementedError to exclude_lines
remove py/_test and proxy py.test namespace to the new 'pytest' package (version 2) remove py/_cmdline and command line tools (now in separate 'pytools' package)