Lib/test/test_softspace.py

import test_support
import StringIO

# SF bug 480215:  softspace confused in nested print
f = StringIO.StringIO()
class C:
    def __str__(self):
        print >> f, 'a'
        return 'b'

print >> f, C(), 'c ', 'd\t', 'e'
print >> f, 'f', 'g'
# In 2.2 & earlier, this printed ' a\nbc  d\te\nf g\n'
test_support.vereq(f.getvalue(), 'a\nb c  d\te\nf g\n')