I am done

rl/Lib/site-packages/mpmath/tests/test_pickle.py

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+import os
+import tempfile
+import pickle
+
+from mpmath import *
+
+def pickler(obj):
+    fn = tempfile.mktemp()
+
+    f = open(fn, 'wb')
+    pickle.dump(obj, f)
+    f.close()
+
+    f = open(fn, 'rb')
+    obj2 = pickle.load(f)
+    f.close()
+    os.remove(fn)
+
+    return obj2
+
+def test_pickle():
+
+    obj = mpf('0.5')
+    assert obj == pickler(obj)
+
+    obj = mpc('0.5','0.2')
+    assert obj == pickler(obj)