Fixed bug found by G-LiTe and added a test.

plugins/Math.py

@@ -127,6 +127,7 @@ class Math(callbacks.Privmsg):
         text = privmsgs.getArgs(args)
         text = text.translate(string.ascii, '_[] \t')
         text = text.replace('lambda', '')
+        #debug.printf(text)
         def handleMatch(m):
             s = m.group(1)
             if s.startswith('0x'):
@@ -138,8 +139,12 @@ class Math(callbacks.Privmsg):
                     i = int(s)
             else:
                 i = float(s)
-            return str(complex(i))
+            x = complex(i)
+            if x == abs(x):
+                x = abs(x)
+            return str(x)
         text = self._mathRe.sub(handleMatch, text)
+        #debug.printf(text)
         try:
             x = complex(eval(text, self._mathEnv, self._mathEnv))
             irc.reply(msg, self._complexToString(x))

test/test_Math.py

@@ -42,6 +42,7 @@ class MathTestCase(PluginTestCase, PluginDocumentation):
         self.assertResponse('calc -((-5)**.5)', '-2.2360679775i')
         self.assertNotRegexp('calc [9, 5] + [9, 10]', 'TypeError')
         self.assertError('calc [9, 5] + [9, 10]')
+        self.assertNotError('calc degrees(2)')
 
     def testRpn(self):
         self.assertResponse('rpn 5 2 +', '7')