Bug#592563: sympy.galgebra.latex_ex.xdvi() creates a file named NUL on non-Linux architectures

[Jakub Wilk]

Package: python-sympy
Version: 0.6.7-1.1
Severity: normal
User: debian-...@lists.debian.org
Usertags: kfreebsd
Tags: patch

$ ls -l NUL
ls: cannot access NUL: No such file or directory

-rw-r--r-- 1 jwilk jwilk 1666 Aug 11 00:22 NUL

The attached patch fixes this bug.


-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: kfreebsd-i386 (i686)

Kernel: kFreeBSD 7.3-1-686
Locale: LANG=C, LC_CTYPE=pl_PL.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages python-sympy depends on:
ii  python                        2.6.5-12   interactive high-level object-orie
ii  python-support                1.0.9      automated rebuilding support for P

Versions of packages python-sympy recommends:
pn  ipython                       <none>     (no description available)
ii  python [python-ctypes]        2.6.5-12   interactive high-level object-orie
pn  python-imaging                <none>     (no description available)

--
Jakub Wilk

import sympy.galgebra.latex_ex as tex
tex.Format()
print 'eggs'
tex.xdvi()

--- sympy-0.6.7.orig/sympy/galgebra/latex_ex.py
+++ sympy-0.6.7/sympy/galgebra/latex_ex.py
@@ -1155,10 +1155,7 @@
         if debug: #Display latex excution output for debugging purposes
             os.system(latex_str+' '+filename[:-4])
         else: #Works for Linux don't know about Windows
-            if sys.platform == 'linux2':
-                os.system(latex_str+' '+filename[:-4]+' > /dev/null')
-            else:
-                os.system(latex_str+' '+filename[:-4]+' > NUL')
+            os.system(latex_str+' '+filename[:-4]+' > '+os.devnull)
         os.system(xdvi_str+' '+filename[:-4]+' &')
     LatexPrinter.LaTeX_flg = False
     return

$ python sympy-NUL.py $ ls -l NUL

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