doctest tests test_richcmp?.py, make test updated.

[SVN r10662]

example/test_richcmp2.py

@@ -0,0 +1,41 @@
+r'''>>> import richcmp2
+    >>> c1 = richcmp2.code(1)
+    >>> c2 = richcmp2.code(2)
+    >>> c3 = richcmp2.code(2)
+    >>> print c1 == c2
+    0
+    >>> print c1 != c2
+    1
+    >>> print c2 == c3
+    1
+    >>> print c2 != c3
+    0
+    >>> print c1 < c2
+    1
+    >>> print c1 <= c2
+    1
+    >>> print c1 == c2
+    0
+    >>> print c1 != c2
+    1
+    >>> print c1 > c2
+    0
+    >>> print c1 >= c2
+    0
+'''
+
+def run(args = None):
+    if args is not None:
+        import sys
+        sys.argv = args
+    import doctest, test_richcmp1
+    return doctest.testmod(test_richcmp1)
+
+if __name__ == '__main__':
+    import sys
+    if (    hasattr(sys, 'version_info')
+        and (   (sys.version_info[0] == 2 and sys.version_info[1] >= 1)
+             or sys.version_info[0] > 2)):
+      sys.exit(run()[0])
+    else:
+      print "Python version 2.1 or higher required. Test skipped."