Add YAML serialization of options

This uses ruamel.yaml. The library seems well-supported, and can do in-place
modification of config files that retains user comments and file structure.

1 files changed, 1 insertions, 0 deletions

diff --git a/setup.py b/setup.py
index 56ba46fc..35f7edb3 100644
--- a/setup.py
+++ b/setup.py
@@ -79,6 +79,7 @@ setup(
         "pyparsing>=2.1.3, <2.2",
         "pyperclip>=1.5.22, <1.6",
         "requests>=2.9.1, <3",
+        "ruamel.yaml>=0.13.2, <0.14",
         "tornado>=4.3, <4.5",
         "urwid>=1.3.1, <1.4",
         "watchdog>=0.8.3, <0.9",