Comment #1 on issue 1622 by smichr: pprint arg doesn't work
http://code.google.com/p/sympy/issues/detail?id=1622
Something I saw on python tutor some years ago might be of use: you can use
stringIO
to capture what would normally be printed (if that's what you need).
###
import StringIO, sys
savedsysstdout=sys.stdout
sys.stdout = io = StringIO.StringIO()
var('x')
pprint((1/x+3)**2, True)
#if you want to see it, seek to 0 and read, just like a file and print
#to stderr instead of stdout
io.seek(0)
sys.stderr.write(io.read())
#restore stdout when finished
sys.stdout = savedsysstdout
###
/c
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