Tuning atest/requirements.txt
@@ -5,8 +5,9 @@ docutils >= 0.9; platform_python_implementation != 'IronPython' # https://githu
pygments
pyyaml
enum34; python_version < '3.0'
+pillow; platform_system == 'Windows'
# On Linux installing lxml with pip may require compilation and development
# headers. Alternatively it can be installed using a package manager like
# `sudo apt-get install python-lxml`.
-lxml; platform_python_implementation == 'CPython' or platform_python_implementation == 'PyPy'
+lxml; platform_python_implementation == 'CPython' or platform_python_implementation == 'PyPy' and platform_system != 'Windows'
