diff --git a/README.md b/README.md
index bb511fa386087a9488bae64c7d5a09edc9113810..0ee5199212ae6dc7128a1ec5ac3b868aba2d8c9d 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,8 @@ Installing
 * pkg-config (for `make test`)
 * glib-2.0 (>= 2.29) (for `make test`)
 * glib-2.0-dev (for `make test`)
+* swig (for Python bindings)
+* python2.7-dev (for Python bindings)
 
 To build, type `scons`. To run the built-in test suite, type `scons test`. For a debug build, add `--variant=debug`
 
@@ -60,6 +62,10 @@ The `examples/` directory contains some simple examples, currently including:
 * base64
 * DNS
 
+Known Issues
+============
+The Python bindings only work with Python 2.7. SCons doesn't work with Python 3, and PyCapsule isn't available in 2.6 and below, so 2.7 is all you get. Sorry about that.
+
 Community
 =========
 Please join us at `#hammer` on `irc.upstandinghackers.com` if you have any questions or just want to talk about parsing.