diff -r d5b0bb2a1790 Doc/c-api/arg.rst
--- a/Doc/c-api/arg.rst	Wed Dec 18 16:45:37 2013 +0200
+++ b/Doc/c-api/arg.rst	Wed Dec 18 17:56:56 2013 +0200
@@ -201,9 +201,10 @@
 
    .. versionadded:: 2.5
 
-``c`` (string of length 1) [char]
-   Convert a Python character, represented as a string of length 1, to a C
-   :c:type:`char`.
+``c`` (string or Unicode of length 1) [char]
+   Convert a Python character, represented as a string or Unicode object of
+   length 1, to a C :c:type:`char`.  Unicode object must contain ASCII
+   character (with code less 128).
 
 ``f`` (float) [float]
    Convert a Python floating point number to a C :c:type:`float`.
diff -r d5b0bb2a1790 Python/getargs.c
--- a/Python/getargs.c	Wed Dec 18 16:45:37 2013 +0200
+++ b/Python/getargs.c	Wed Dec 18 17:56:56 2013 +0200
@@ -824,6 +824,13 @@
         char *p = va_arg(*p_va, char *);
         if (PyString_Check(arg) && PyString_Size(arg) == 1)
             *p = PyString_AS_STRING(arg)[0];
+        else if (PyUnicode_Check(arg) && PyUnicode_GET_SIZE(arg) == 1) {
+            Py_UNICODE ch = PyUnicode_AS_UNICODE(arg)[0];
+            if (ch < 128)
+                *p = (char)ch;
+            else
+                return converterr("char", arg, msgbuf, bufsize);
+        }
         else
             return converterr("char", arg, msgbuf, bufsize);
         break;