why ps/fname of a python interpreter changes across platforms?

[keobox]

Hello,
I'm writing a little supervisor of some python scripts.
To check if the scrips are running I'm using the ps -o pid,fname
command on both RH Linux and solaris 10.
All the scripts are launched using "python script.py" command, they
are not launched with exec permissions.

I don't know why the fname of the python interpreter changes across
platforms.

I saw a "isapytho" in some solaris 10 platforms.
I saw "python2." in some Linux platforms.
On most platforms the value is "python".
Why?

Ok, I know that I can easily work around the problem by not using
"fname" and parse the ps output in another way, but I don't understand
how is possible that the combination of ps and python behaves so
badly.
Any idea?

Regards,
Cesare

 

[Steven D'Aprano]

Hello,
I'm writing a little supervisor of some python scripts.
To check if the scrips are running I'm using the ps -o pid,fname
command on both RH Linux and solaris 10.
All the scripts are launched using "python script.py" command, they
are not launched with exec permissions.

I don't know why the fname of the python interpreter changes across
platforms.

Ask the person who built the system, or the people who made the
distribution. They are free to name the Python executable anything they
like.