Unable to use psutil on OS X

[amjith]

I'm on OS X 10.9.5 with a brew installed Python 2.7.9.

I installed psutil using pip install psutil and installation succeeds. But when I try it use it I get the following error.

$ python -c 'import psutil'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/local/lib/python2.7/site-packages/psutil/__init__.py", line 149, in <module>
    import psutil._psosx as _psplatform
  File "/usr/local/lib/python2.7/site-packages/psutil/_psosx.py", line 168, in <module>
    pids = cext.pids
AttributeError: 'module' object has no attribute 'pids'

Do I need to do something special to get this working in OS X

[giampaolo]

Mmm... that is weird. It looks like psutil wasn't properly installed.
What's the output of:

import _psutil_linux as cext
print(dir(cext))
print(cext.version)

Also, I would try to uninstall and reinstall.
If that won't work I would try to install psutil from sources.

[amjith]

I tried uninstalling and then reinstalling, no luck. I tried the commands you listed, here's the output.

Since I'm on OS X I replaced import _psutil_linux as cext with import _psutil_osx as cext.

$ python                                                                                                                                                                                             [22:00:19]
Python 2.7.9 (default, Jan 21 2015, 16:28:02)
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.56)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import _psutil_osx as cext
>>> print(dir(cext))
['PSUTIL_CONN_NONE', 'SIDL', 'SRUN', 'SSLEEP', 'SSTOP', 'SZOMB', 'TCPS_CLOSED', 'TCPS_CLOSE_WAIT', 'TCPS_CLOSING', 'TCPS_ESTABLISHED', 'TCPS_FIN_WAIT_1', 'TCPS_FIN_WAIT_2', 'TCPS_LAST_ACK', 'TCPS_LISTEN', 'TCPS_SYN_RECEIVED', 'TCPS_SYN_SENT', 'TCPS_TIME_WAIT', '__doc__', '__file__', '__name__', '__package__', 'get_disk_io_counters', 'get_disk_partitions', 'get_net_io_counters', 'get_num_cpus', 'get_pid_list', 'get_process_cmdline', 'get_process_connections', 'get_process_cpu_times', 'get_process_create_time', 'get_process_cwd', 'get_process_exe', 'get_process_gids', 'get_process_memory_info', 'get_process_memory_maps', 'get_process_name', 'get_process_num_ctx_switches', 'get_process_num_fds', 'get_process_num_threads', 'get_process_open_files', 'get_process_ppid', 'get_process_status', 'get_process_threads', 'get_process_tty_nr', 'get_process_uids', 'get_swap_mem', 'get_system_boot_time', 'get_system_cpu_times', 'get_system_per_cpu_times', 'get_system_users', 'get_virtual_mem']
>>> print(cext.version)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'version'
>>> print(cext.version())
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'version'
>>>

[giampaolo]

AttributeError: 'module' object has no attribute 'version'

It looks like this is not the latest psutil version. Try print(psutil.__version__).

[amjith]

Mystery solved.

I couldn't try print(psutil.__version) because psutil won't allow me to import it.

I ran a locate psutil and found this:

/Library/Python/2.7/site-packages/_psutil_osx.so
/Library/Python/2.7/site-packages/_psutil_posix.so

That is the system python that came with OS X and not the brew installed latest Python. I must have installed an old version of psutil using the old version Python and subsequently uninstalled it but those files were left behind after the uninstall. So when I installed the new version it kept referencing to this old .so files.

I removed them by hand and tried again and it works like a charm. Thank you!

>>> import psutil
>>> psutil.version_info
(2, 2, 0)
>>>