[Paraview] Python shell, os.environ

[Heiland, Randy]

Thanks Utkarsh. Yes, running pvpython from a Terminal is indeed different from running the Python Shell in the PV app (on OS X anyway), in terms of os.environ.

Regardless, hopefully my proposed approach of creating an envs.py module in the PV installation will work. I’m just looking for the simplest solution for our users.

-Randy
 
> On Dec 20, 2017, at 9:16 PM, Utkarsh Ayachit <utkarsh.ayachit at kitware.com> wrote:
> 
> Randy,
> 
> No, `os` hasn't been hijacked by PV.  Here's what I get on Linux.
> 
> ./bin/pvpython
> Python 3.5.2 (default, Nov 23 2017, 16:37:01)
> [GCC 5.4.0 20160609] on linux
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import os
>>>> os.environ["FOO"]
> '12'
> 
> 
> I suspect it's something to do with App bundles on macOS and what
> environment variables they see based on how you launch them. I can't
> remember that of the top of my head, but that's where I'd start
> looking.
> 
> Utkarsh
> 
> 
> On Wed, Dec 20, 2017 at 5:50 PM, Heiland, Randy <heiland at iu.edu> wrote:
>> Ah, I see ‘os’ has been hijacked by PV. But something like this seems to accomplish what I want, maybe…
>> 
>> Create a new module for PV:
>> 
>> /Applications/ParaView-5.4.1.app/Contents/Python$ more envs.py
>> import os
>> os.environ['PHYSICELL_DATA']=‘/fill_in_path’
>> 
>> and then in the PV Python shell, the os.environ will indeed contain this new env var.
>> 
>> 
>>> On Dec 20, 2017, at 4:30 PM, Heiland, Randy <heiland at iu.edu> wrote:
>>> 
>>> I noticed the Python shell has a very limited os.environ, e.g.:
>>>>>> os.environ
>>> {'SHELL': '/bin/bash', 'SSH_AUTH_SOCK': '/private/tmp/com.apple.launchd.y86uYmHWFV/Listeners', 'XPC_FLAGS': '0x0', '__CF_USER_TEXT_ENCODING': '0x1F5:0x0:0x0', 'Apple_PubSub_Socket_Render': '/private/tmp/com.apple.launchd.CM4C6EMoE6/Render', 'LOGNAME': 'heiland', 'USER': 'heiland', 'XPC_SERVICE_NAME': 'org.paraview.ParaView.33336', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'HOME': '/Users/heiland', 'DISPLAY': '/private/tmp/com.apple.launchd.4ORv1l0yeN/org.macosforge.xquartz:0', 'TMPDIR': '/var/folders/l6/s467rzgs75n91gdbkn7vr0f40000gn/T/'}
>>>>>> 
>>> 
>>> I’m guessing this is a security measure? Anyway, is there any way one can use an env var to pass in desirable info to PV’s Python, e.g., a dir path to data to be read by a Programmable Source? Or perhaps there’s some other entirely different way to do this?
>>> 
>>> thanks, Randy
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