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## RE: [Axiom-developer] Axiom crashing in Zope-Plone

 From: Bill Page Subject: RE: [Axiom-developer] Axiom crashing in Zope-Plone Date: Sat, 25 Sep 2004 16:22:45 -0400

Hans,

I am VERY HAPPY that you are motivated to do this! I would
like to provide you with as much help as I can.

I tried your demo.py program on the axiom-developer.org system
and it works fine. The program and outout is attached below.
As you can see, I only made a simple change to accommodate the
default location of AXIOMsys and the input file.

Although Bob McElrath has written separately about the issue of
programs that produce a large output, I don't think that this is
the problem since the MathAction axiom code already uses the
"fixed runCommand" (makeNonBlocking etc.) that Bob mentions.

Therefore I think the best approach would be to find the
meaning of the EXITSTATUS 139. I will let you know if I find
anything.

Regards,
Bill Page.

--------
address@hidden page]$cat demo.py import os from popen2 import Popen3 axiomTemplate = r""")set output algebra off )set output tex on )set message autoload off )set quit unprotected integrate(x**2,x) )quit """ LatexWikiHome = '' axTinput = open ( LatexWikiHome + 'axT.input', 'w' ) axTinput.write(axiomTemplate) axTinput.close() cmdLine = r'AXIOMsys < %s ' %(LatexWikiHome + 'axT.input') def echoWorld(): """ external method calling Popen3 """ p = Popen3 (cmdLine, 1, 4096) status = p.wait() p.tochild.close() out = p.fromchild.read() p.fromchild.close() err = '' if p.childerr: err = p.childerr.read(); p.childerr.close() error = os.WEXITSTATUS(status) or \ not os.WIFEXITED(status) if not error: return\ 'Output: ' + out +\ '\nWEXITSTATUS: ' + str(os.WEXITSTATUS(status)) +\ '\nWIFEXITED: ' + str(os.WIFEXITED(status)) else: return\ 'Error: ' + err +\ '\nOut: ' + out +\ '\nWEXITSTATUS:' + str(os.WEXITSTATUS(status)) +\ '\nWIFEXITED: ' + str(os.WIFEXITED(status)) # For Zope external testing print echoWorld() address@hidden page]$ python demo.py
Output:                         AXIOM Computer Algebra System
Version of Monday June 21, 2004 at 08:34:09
----------------------------------------------------------------------------
-
Issue )summary for a summary of useful system commands.
----------------------------------------------------------------------------
-

(1) -> (1) -> (1) -> (1) -> (1) ->
$${1 \over 3} \ {x \sp 3} \leqno(1)$$

Type: Polynomial Fraction
Integer
(2) ->
WEXITSTATUS: 0
WIFEXITED:   1