pg.ddx.io pgsql-admin@postgresql.org mailing list archive
help / color / mirror / Atom feedERROR: ImportError: No module named 'psutil'
7+ messages / 3 participants
[nested] [flat]
* ERROR: ImportError: No module named 'psutil'
@ 2021-07-27 15:41 Ganesh Korde <ganeshakorde@gmail.com>
0 siblings, 1 reply; 7+ messages in thread
From: Ganesh Korde @ 2021-07-27 15:41 UTC (permalink / raw)
To: pgsql-admin
Hi Everyone,
Environment
OS : Linux ubuntu 4.4.0-87-generic
Database: PostgreSQL 10.7 on x86_64-pc-linux-gnu,
Extension: plpython3u
Python version: Python 3.5.2
I am trying to run a python function using the language plpython3u and I
am getting the below error, though I have installed psutil.
postgres=# select * from get_psutil_mem();
ERROR: ImportError: No module named 'psutil'
CONTEXT: Traceback (most recent call last):
PL/Python function "get_psutil_mem", line 2, in <module>
from psutil import virtual_memory, swap_memory
PL/Python function "get_psutil_mem"
Below is the successful execution of psutil
root@ubuntu:~# python
Python 3.5.2 (default, Jan 26 2021, 13:30:48)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import psutil
>>> psutil.cpu_times()
scputimes(user=139677.25, nice=755.4, system=53408.11, idle=10956992.84,
iowait=18110.06, irq=0.0, softirq=1294.34, steal=0.0, guest=0.0,
guest_nice=0.0)
>>>
Function details:
CREATE OR REPLACE FUNCTION get_psutil_mem(
OUT total float8, OUT used float8, OUT free float8, OUT buff_cache float8,
OUT available float8, OUT percent float8,
OUT swap_total float8, OUT swap_used float8, OUT swap_free float8, OUT
swap_percent float8
)
LANGUAGE plpython3u
AS $FUNCTION$
from psutil import virtual_memory, swap_memory
vm = virtual_memory()
sw = swap_memory()
return vm.total, vm.used, vm.free, vm.buffers + vm.cached, vm.available,
vm.percent, sw.total, sw.used, sw.free, sw.percent
$FUNCTION$;
The above function is used by pgwatch2 to monitor memory.
*I tried installing python3.4.3 from source code but still the same
error.* Also
tried most of the solutions provided on the internet but nothing helped.
Problem is with the psutil module only.
Please let me know if I am missing anything.
Any help will be much appreciated.
Regards,
Ganesh Korde.
^ permalink raw reply [nested|flat] 7+ messages in thread
* ERROR: ImportError: No module named 'psutil'
@ 2021-08-01 14:40 Ganesh Korde <ganeshakorde@gmail.com>
parent: Ganesh Korde <ganeshakorde@gmail.com>
0 siblings, 1 reply; 7+ messages in thread
From: Ganesh Korde @ 2021-08-01 14:40 UTC (permalink / raw)
To: pgsql-general <pgsql-general@lists.postgresql.org>
Hi Everyone,
Environment
OS : Linux ubuntu 4.4.0-87-generic
Database: PostgreSQL 10.7 on x86_64-pc-linux-gnu,
Extension: plpython3u
Python version: Python 3.5.2
I am trying to run a python function using the language plpython3u and I
am getting the below error, though I have installed psutil.
postgres=# select * from get_psutil_mem();
ERROR: ImportError: No module named 'psutil'
CONTEXT: Traceback (most recent call last):
PL/Python function "get_psutil_mem", line 2, in <module>
from psutil import virtual_memory, swap_memory
PL/Python function "get_psutil_mem"
Below is the successful execution of psutil
root@ubuntu:~# python
Python 3.5.2 (default, Jan 26 2021, 13:30:48)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import psutil
>>> psutil.cpu_times()
scputimes(user=139677.25, nice=755.4, system=53408.11, idle=10956992.84,
iowait=18110.06, irq=0.0, softirq=1294.34, steal=0.0, guest=0.0,
guest_nice=0.0)
>>>
Function details:
CREATE OR REPLACE FUNCTION get_psutil_mem(
OUT total float8, OUT used float8, OUT free float8, OUT buff_cache float8,
OUT available float8, OUT percent float8,
OUT swap_total float8, OUT swap_used float8, OUT swap_free float8, OUT
swap_percent float8
)
LANGUAGE plpython3u
AS $FUNCTION$
from psutil import virtual_memory, swap_memory
vm = virtual_memory()
sw = swap_memory()
return vm.total, vm.used, vm.free, vm.buffers + vm.cached, vm.available,
vm.percent, sw.total, sw.used, sw.free, sw.percent
$FUNCTION$;
The above function is used by pgwatch2 to monitor memory.
*I tried installing python3.4.3 from source code but still the same
error.* Also
tried most of the solutions provided on the internet but nothing helped.
Problem is with the psutil module only.
Please let me know if I am missing anything.
Any help will be much appreciated.
Regards,
Ganesh Korde.
^ permalink raw reply [nested|flat] 7+ messages in thread
* Re: ERROR: ImportError: No module named 'psutil'
@ 2021-08-01 15:35 Adrian Klaver <adrian.klaver@aklaver.com>
parent: Ganesh Korde <ganeshakorde@gmail.com>
0 siblings, 1 reply; 7+ messages in thread
From: Adrian Klaver @ 2021-08-01 15:35 UTC (permalink / raw)
To: Ganesh Korde <ganeshakorde@gmail.com>; pgsql-general <pgsql-general@lists.postgresql.org>
On 8/1/21 7:40 AM, Ganesh Korde wrote:
> Hi Everyone,
>
> Environment
> OS : Linux ubuntu 4.4.0-87-generic
> Database: PostgreSQL 10.7 on x86_64-pc-linux-gnu,
> Extension: plpython3u
> Python version: Python 3.5.2
>
> I am trying to run a python function using the language plpython3u and
> I am getting the below error, though I have installed psutil.
>
> postgres=# select * from get_psutil_mem();
> ERROR: ImportError: No module named 'psutil'
> CONTEXT: Traceback (most recent call last):
> PL/Python function "get_psutil_mem", line 2, in <module>
> from psutil import virtual_memory, swap_memory
> PL/Python function "get_psutil_mem"
>
> The above function is used by pgwatch2 to monitor memory.
>
> *I tried installing python3.4.3 from source code but still the same
> error.* Also tried most of the solutions provided on the internet but
> nothing helped. Problem is with the psutil module only.
>
> Please let me know if I am missing anything.
How did you install plpython3u?
How did you install psutil?
>
> Any help will be much appreciated.
>
> Regards,
> Ganesh Korde.
--
Adrian Klaver
adrian.klaver@aklaver.com
^ permalink raw reply [nested|flat] 7+ messages in thread
* Re: ERROR: ImportError: No module named 'psutil'
@ 2021-08-01 15:51 Tom Lane <tgl@sss.pgh.pa.us>
parent: Adrian Klaver <adrian.klaver@aklaver.com>
0 siblings, 1 reply; 7+ messages in thread
From: Tom Lane @ 2021-08-01 15:51 UTC (permalink / raw)
To: Adrian Klaver <adrian.klaver@aklaver.com>; +Cc: Ganesh Korde <ganeshakorde@gmail.com>; pgsql-general <pgsql-general@lists.postgresql.org>
Adrian Klaver <adrian.klaver@aklaver.com> writes:
> On 8/1/21 7:40 AM, Ganesh Korde wrote:
>> I am trying to run a python function using the language plpython3u and
>> I am getting the below error, though I have installed psutil.
>>
>> postgres=# select * from get_psutil_mem();
>> ERROR: ImportError: No module named 'psutil'
> How did you install plpython3u?
> How did you install psutil?
Experimenting locally, I observe something that seems relevant:
I get that error message phrasing from python *2*. In python 3,
an unknown module name draws "ModuleNotFoundError":
$ python3
Python 3.6.8 (default, Mar 18 2021, 08:58:41)
[GCC 8.4.1 20200928 (Red Hat 8.4.1-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from z import virtual_memory, swap_memory
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'z'
Now it's possible that the wording didn't change exactly at the 2/3
boundary, but I doubt it. So it looks to me like the alleged plpython3u
language is actually invoking python 2.something, which is unlikely
to work well at all.
regards, tom lane
^ permalink raw reply [nested|flat] 7+ messages in thread
* Re: ERROR: ImportError: No module named 'psutil'
@ 2021-08-01 16:30 Adrian Klaver <adrian.klaver@aklaver.com>
parent: Tom Lane <tgl@sss.pgh.pa.us>
0 siblings, 1 reply; 7+ messages in thread
From: Adrian Klaver @ 2021-08-01 16:30 UTC (permalink / raw)
To: Tom Lane <tgl@sss.pgh.pa.us>; +Cc: Ganesh Korde <ganeshakorde@gmail.com>; pgsql-general <pgsql-general@lists.postgresql.org>
On 8/1/21 8:51 AM, Tom Lane wrote:
> Adrian Klaver <adrian.klaver@aklaver.com> writes:
>
> Now it's possible that the wording didn't change exactly at the 2/3
> boundary, but I doubt it. So it looks to me like the alleged plpython3u
> language is actually invoking python 2.something, which is unlikely
> to work well at all.
In that vein the OP could run:
DO $$
import sys
plpy.notice(sys.version)
$$ LANGUAGE plpython3u;
in the database to see what plpython3u is actually pointing at?
>
> regards, tom lane
>
--
Adrian Klaver
adrian.klaver@aklaver.com
^ permalink raw reply [nested|flat] 7+ messages in thread
* Re: ERROR: ImportError: No module named 'psutil'
@ 2021-08-01 16:35 Tom Lane <tgl@sss.pgh.pa.us>
parent: Adrian Klaver <adrian.klaver@aklaver.com>
0 siblings, 1 reply; 7+ messages in thread
From: Tom Lane @ 2021-08-01 16:35 UTC (permalink / raw)
To: Adrian Klaver <adrian.klaver@aklaver.com>; +Cc: Ganesh Korde <ganeshakorde@gmail.com>; pgsql-general <pgsql-general@lists.postgresql.org>
Adrian Klaver <adrian.klaver@aklaver.com> writes:
> In that vein the OP could run:
> DO $$
> import sys
> plpy.notice(sys.version)
> $$ LANGUAGE plpython3u;
> in the database to see what plpython3u is actually pointing at?
+1 ... looking at sys.path in the same way would also be useful.
regards, tom lane
^ permalink raw reply [nested|flat] 7+ messages in thread
* Re: ERROR: ImportError: No module named 'psutil'
@ 2021-08-02 15:05 Ganesh Korde <ganeshakorde@gmail.com>
parent: Tom Lane <tgl@sss.pgh.pa.us>
0 siblings, 0 replies; 7+ messages in thread
From: Ganesh Korde @ 2021-08-02 15:05 UTC (permalink / raw)
To: Tom Lane <tgl@sss.pgh.pa.us>; +Cc: Adrian Klaver <adrian.klaver@aklaver.com>; pgsql-general <pgsql-general@lists.postgresql.org>
Ok, thanks guys. Let me check that.
On Sun, Aug 1, 2021 at 10:05 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Adrian Klaver <adrian.klaver@aklaver.com> writes:
> > In that vein the OP could run:
>
> > DO $$
> > import sys
> > plpy.notice(sys.version)
> > $$ LANGUAGE plpython3u;
>
> > in the database to see what plpython3u is actually pointing at?
>
> +1 ... looking at sys.path in the same way would also be useful.
>
> regards, tom lane
>
^ permalink raw reply [nested|flat] 7+ messages in thread
end of thread, other threads:[~2021-08-02 15:05 UTC | newest]
Thread overview: 7+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2021-07-27 15:41 ERROR: ImportError: No module named 'psutil' Ganesh Korde <ganeshakorde@gmail.com>
2021-08-01 14:40 ` Ganesh Korde <ganeshakorde@gmail.com>
2021-08-01 15:35 ` Adrian Klaver <adrian.klaver@aklaver.com>
2021-08-01 15:51 ` Tom Lane <tgl@sss.pgh.pa.us>
2021-08-01 16:30 ` Adrian Klaver <adrian.klaver@aklaver.com>
2021-08-01 16:35 ` Tom Lane <tgl@sss.pgh.pa.us>
2021-08-02 15:05 ` Ganesh Korde <ganeshakorde@gmail.com>
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox