Use Python or Hscript to give me the session's context (mantra, hython, houdini)

[ah-fx]

Hey everyone,

Is it possible to use python or hscript to tell me which context houdini is running in. For example, mantra, hython, or interactive / native houdini?

Adam

[symek]

4 hours ago, ah-fx said:

Hey everyone,

Is it possible to use python or hscript to tell me which context houdini is running in. For example, mantra, hython, or interactive / native houdini?

Adam

Houdini and hython/hbatch/engine is simple:

hou.isUIAvailable()  // spots the difference

For python in Mantra filtering, check if you can import mantra module, and handle exception properly

is_this_mantra_filter = False
try: 
  import mantra
  is_this_mantra_filter = True
except:
  pass
  

For python running inside HDA instanced by Mantra afaik it is less obvious. I can deduce it from a details like content of sys.argv. From what I see in Mantra case it's empty:

import sys
if not sys.argv[0]:
  # this seems to be Engine running inside Mantra
  pass 

highly unreliable.

 

hth,

skk.

 

[ah-fx]

On 1/12/2018 at 7:45 PM, symek said:

Houdini and hython/hbatch/engine is simple:

hou.isUIAvailable()  // spots the difference

For python in Mantra filtering, check if you can import mantra module, and handle exception properly

is_this_mantra_filter = False
try: 
  import mantra
  is_this_mantra_filter = True
except:
  pass
  

For python running inside HDA instanced by Mantra afaik it is less obvious. I can deduce it from a details like content of sys.argv. From what I see in Mantra case it's empty:

import sys
if not sys.argv[0]:
  # this seems to be Engine running inside Mantra
  pass 

highly unreliable.

 

hth,

skk.

 

 

This is perfect, thanks symek