CFD Online Discussion Forums - [General] import local functions in pvpython

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import local functions in pvpython

So I have a script in my working directory which has functions I want to call in to pv python, but for some reason when I call them,

for example

Code:

import os

os.chdir('pathtomyscript')

from script import function

python says it can't find the module.

Does anyone know why this might be happening and how I can fix the issue?

If you're in a folder with myscript.py which has a function named myFunction then

Code:

from myscript import myFunction

should work.

Regards,
Mikko

seems to be working today, I must have been doing something careless yesterday, but now, although I can import the function fine, it isn't recognising the things that I call from paraview.simple. For example currently I am using the following function:

Code:

def clip():



    import paraview



    FluentCaseReader1 = GetActiveSource()





    Clip1 = Clip( ClipType="Plane" )



    Clip1.Scalars = ['POINTS', 'DENSITY']



    Clip1.ClipType = "Plane"



    Clip1.ClipType.Origin = [-0.0454, -0.02, -0.002]



    Clip1.ClipType.Normal = [0.03, 0.1, 1]



    return(Clip1)

to define a clip, which works fine if I feed the body into pvpython, however when I import the function in pv python and then call the function, two strange things happen. Firstly, it saying

TypeError: clip() takes exactly 1 argument (0 given)

which is strange because clip() doesn't take any arguments.

Secondly, if I give it an arbitrary argument, say 1 for example, I get

FluentCaseReader1 = GetActiveSource()

NameError: global name 'GetActiveSource' is not defined

also, if I run the script in containing the functions in pv python and then call them they work fine...

Any suggestions?

The namespaces are somehow confused. Why are you importing paraview in the beginning of your function? Can you try this?

Code:

import myscript

import paraview.simple as pv



myscript.clip()



so = pv.GetActiveSource()

pv.Clip(so)

Code:

>>> PA.clip()

Traceback (most recent call last):

  File "<console>", line 1, in <module>

  File "/media/sean/data/MASTERSNASAL/Sean Read/Elderly flow paper/images/slicedata/PA.py", line 24, in clip

    DataRepresentation1 = GetDisplayProperties( FluentCaseReader1 )

NameError: global name 'GetDisplayProperties' is not defined

Code:

>>> pv.Clip(so)

<paraview.servermanager.Clip object at 0x7f8fd451dd50>

I added import paraview because it wasn't recognising the modules imported from paraview, but it didn't help. Is it something wrong with how I compiled paraview?

In the beginning of your script files you should import the ParaView Simple module. Simple module contains all the filters (Clip, Slice...). Either by

Code:

from paraview.simple import *

Clip(..)

Code:

import paraview.simple as pv

pv.Clip(...)

seems to have done the trick, thanks again!

hey you know this is weird, but I just did a clean install of paraview4.4 with openfoam from the debian package on ubuntu 15.10 and the same original problem with importing functions from the local folder has manifested. Do you have any thoughts as to why this might be?