TypeError: memory_maps() takes exactly 2 arguments (1 given)

[Ustilago]

Hi,
I'm having an error on a vserver linux machine that I don't have on my laptop or my raspberry pi, with psutils 2.1.1 and python 2.7.3 on a debian 7 :

>>> import psutil
>>> p = psutil.Process()
>>> p.memory_maps()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/ustilago/src/glances-venv/local/lib/python2.7/site-packages/psutil/__init__.py", line 921, in memory_maps
    it = self._proc.memory_maps()
TypeError: memory_maps() takes exactly 2 arguments (1 given)

I know vserver introduces some access restrictions (can't use iptable for instance), but I didn't think it would impact psutils, top and htop commands are working well.

$ python --version
Python 2.7.3
$ uname -a
Linux 2.6.32.22-tl04-grsec2.2.0-vs2.3.0.36.29.6 #1 SMP Sun Oct 3 14:10:24 UTC 2010 x86_64 GNU/Linux

Regards,
Sébastien

[giampaolo]

It seems the problem is here:

psutil/psutil/_pslinux.py

Line 966 in 653ef91

else:

Basically your system does not provide any /proc/{PID}/smaps file, hence psutil cannot retrieve memory mappings.
NotImplementedError should be raised instead of TypeError though.