Comment 4 for bug 794210

I can't reproduce it with that repository either.

do you have patch installed?
sudo apt-get install patch

if yes can you execute:
python -c 'import tempfile; print tempfile.mkdtemp("-meld")'
it should print a the location of a directory

if that works can you add a
print command
in /usr/lib/meld/meld/misc.py line 244 before proc = subprocess.Popen(command...)
and post what it prints before the crash