Mention the cffi issue (fixes bpython#470)

sebastinas · sebastinas · commit d853c2e7e288 · 2015-02-01T00:23:59.000+01:00
Signed-off-by: Sebastian Ramacher &lt;sebastian+dev@ramacher.at&gt;
(cherry picked from commit f616167984b16539f3b9d2f8d73207ad3103adc4)
diff --git a/README.rst b/README.rst
@@ -21,6 +21,17 @@ bpython-curtsies
 * curtsies >= 0.0.32
 * greenlet
 
+If you are using Python 2 on Mac OS X, the following dependencies are required
+as well:
+
+* pyOpenSSL
+* ndg-httpsclien
+* pyasn1
+
+If you have problems installing cffi which is needed by pyOpenSSL,
+please take a look at https://cffi.readthedocs.org/en/release-0.8/#macos-x.
+
+
 bpython-urwid
 -------------
 ``bpython-urwid`` requires the following additional packages:
