set_linedash: bug fix

seehuhn · seehuhn · commit 9a3ff5d1df01 · 2004-12-01T11:24:52.000Z
svn path=/trunk/matplotlib/; revision=725
diff --git a/lib/matplotlib/backends/backend_ps.py b/lib/matplotlib/backends/backend_ps.py
@@ -100,7 +100,7 @@ def set_linecap(self, linecap):
 
     def set_linedash(self, offset, seq):
         if (offset,seq) != self.linedash:
-            if seq:
+            if seq is not None and len(seq):
                 s="[%s] %d setdash\n"%(_nums_to_str(*seq), offset)
                 self._pswriter.write(s)
             else:
