Comment 1 for bug 613675

Here's a reproducible test case:

from subprocess import *

p1 = Popen('python2.6 -m py_compile -', bufsize=1, shell=True, stdin=PIPE)
p2 = Popen('python2.7 -m py_compile -', bufsize=1, shell=True, stdin=PIPE)

print 'p1.communicate()'
p1.communicate()
print 'p2.communicate()'
p2.communicate()

## print 'p1.terminate()'
## p1.terminate()
## print 'p2.terminate()'
## p2.terminate()