Fix #883466: don't allow Unicode as arguments to quopri and uu codecs.

Lib/encodings/quopri_codec.py

@@ -18,7 +18,8 @@ def quopri_encode(input, errors='strict'):
 
     """
     assert errors == 'strict'
-    f = StringIO(input)
+    # using str() because of cStringIO's Unicode undesired Unicode behavior.
+    f = StringIO(str(input))
     g = StringIO()
     quopri.encode(f, g, 1)
     output = g.getvalue()
@@ -33,7 +34,7 @@ def quopri_decode(input, errors='strict'):
 
     """
     assert errors == 'strict'
-    f = StringIO(input)
+    f = StringIO(str(input))
     g = StringIO()
     quopri.decode(f, g)
     output = g.getvalue()

Lib/encodings/uu_codec.py

@@ -25,7 +25,8 @@ def uu_encode(input,errors='strict',filename='<data>',mode=0666):
     assert errors == 'strict'
     from cStringIO import StringIO
     from binascii import b2a_uu
-    infile = StringIO(input)
+    # using str() because of cStringIO's Unicode undesired Unicode behavior.
+    infile = StringIO(str(input))
     outfile = StringIO()
     read = infile.read
     write = outfile.write
@@ -60,7 +61,7 @@ def uu_decode(input,errors='strict'):
     assert errors == 'strict'
     from cStringIO import StringIO
     from binascii import a2b_uu
-    infile = StringIO(input)
+    infile = StringIO(str(input))
     outfile = StringIO()
     readline = infile.readline
     write = outfile.write