pyperclip

[:platform_system == "Darwin"]
pyobjc-core
pyobjc

[:platform_system == "Linux" and python_version < "3.0"]
Xlib

[:platform_system == "Linux" and python_version >= "3.0"]
python3-Xlib

[:python_version == "2.7" or python_version >= "3.5" and python_version <= "3.7"]
Pillow
