# problem in "self"
**URL:** https://discourse.paraview.org/t/problem-in-self/2367
**Category:** Development
**Tags:** python
**Created:** [August 6, 2019, 11:23am UTC](https://discourse.paraview.org/t/problem-in-self/2367 "2019-08-06T11:23:33Z")
**Posts on this page:** 16
**Page:** 1
### Author:  [@ikram](https://discourse.paraview.org/u/ikram)
#### Post date: [August 6, 2019, 11:23am UTC](https://discourse.paraview.org/t/problem-in-self/2367/1 "2019-08-06T11:23:33Z")
hi how can i fix this problem
File “”, line 1, in
NameError: name ‘self’ is not defined
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 6, 2019, 11:24am UTC](https://discourse.paraview.org/t/problem-in-self/2367/2 "2019-08-06T11:24:56Z")
please update your post with relevant information about your problem.
---
### Author:  [@ikram](https://discourse.paraview.org/u/ikram)
#### Post date: [August 6, 2019, 11:27am UTC](https://discourse.paraview.org/t/problem-in-self/2367/3 "2019-08-06T11:27:42Z")
i try to execute this code :
from paraview.simple import \*
from paraview import vtk
reader = OpenDataFile(’/home/ikram/Bureau/C0002.vtk’)
pdi = self.GetPolyDataInput()
pdo = self.GetPolyDataOutput()
numPoints = pdi.GetNumberOfPoints()
pdo.Allocate()
for i in range(0, numPoints-1):
points = [i, i+1]
# VTK\_LINE is 3
pdo.InsertNextCell(3, 2, points)
Show(reader)
but it bugs :
NameError: name ‘self’ is not defined
how can i fix it
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 6, 2019, 11:29am UTC](https://discourse.paraview.org/t/problem-in-self/2367/4 "2019-08-06T11:29:51Z")
```
from paraview.simple import *
from paraview import vtk
reader = OpenDataFile(’/home/ikram/Bureau/C0002.vtk’)
Show(reader)
```
This part if pvpython code.
```
pdi = self.GetPolyDataInput()
pdo = self.GetPolyDataOutput()
numPoints = pdi.GetNumberOfPoints()
pdo.Allocate()
for i in range(0, numPoints-1):
points = [i, i+1]
# VTK_LINE is 3
pdo.InsertNextCell(3, 2, points)
```
This part is vtkPython, probably to put in a Programmable Filter. Are you trying to create lines between points ?
Looks like you are trying to put vtkPython code in pvpython or python shell. Is that the case ?
---
### Author:  [@ikram](https://discourse.paraview.org/u/ikram)
#### Post date: [August 6, 2019, 11:30am UTC](https://discourse.paraview.org/t/problem-in-self/2367/5 "2019-08-06T11:30:49Z")
yes !
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 6, 2019, 11:32am UTC](https://discourse.paraview.org/t/problem-in-self/2367/6 "2019-08-06T11:32:52Z")
So use your code in a ProgrammableFilter instead.
---
### Author:  [@ikram](https://discourse.paraview.org/u/ikram)
#### Post date: [August 6, 2019, 11:35am UTC](https://discourse.paraview.org/t/problem-in-self/2367/7 "2019-08-06T11:35:21Z")
> [@mwestphal](#):
>
> pvpython
how i do this ! sorry
but i already start using paraview !
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 6, 2019, 11:41am UTC](https://discourse.paraview.org/t/problem-in-self/2367/8 "2019-08-06T11:41:47Z")
pvpython is available in ParaView
View -\> Python Shell
---
### Author:  [@ikram](https://discourse.paraview.org/u/ikram)
#### Post date: [August 6, 2019, 11:45am UTC](https://discourse.paraview.org/t/problem-in-self/2367/9 "2019-08-06T11:45:20Z")
i found python shell in tools , and i did run script test.py , it contains
pdi = self.GetPolyDataInput()
pdo = self.GetPolyDataOutput()
numPoints = pdi.GetNumberOfPoints()
pdo.Allocate()
for i in range(0, numPoints-1):
points = [i, i+1]
# VTK\_LINE is 3
pdo.InsertNextCell(3, 2, points)
but it show me this
nameError: name ‘self’ is not defined
😕 how can i fixe it
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 6, 2019, 11:48am UTC](https://discourse.paraview.org/t/problem-in-self/2367/10 "2019-08-06T11:48:43Z")
This code is for a programmable filter, not the python shell.
Filters -\> ProgrammableFilter
---
### Author:  [@ikram](https://discourse.paraview.org/u/ikram)
#### Post date: [August 6, 2019, 11:51am UTC](https://discourse.paraview.org/t/problem-in-self/2367/11 "2019-08-06T11:51:27Z")
ok
i think is not installed !
how can i fix it !
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 6, 2019, 11:52am UTC](https://discourse.paraview.org/t/problem-in-self/2367/12 "2019-08-06T11:52:30Z")
Download ParaView here:
[https://www.paraview.org/download/](https://www.paraview.org/download/)
---
### Author:  [@ikram](https://discourse.paraview.org/u/ikram)
#### Post date: [August 6, 2019, 12:09pm UTC](https://discourse.paraview.org/t/problem-in-self/2367/13 "2019-08-06T12:09:09Z")
excuse me for my stupid question !
i download ParaView-5.7.0-RC1-osmesa-MPI-Linux-64bit.tar.gz
and i extracted it
after that , how i install it !
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 6, 2019, 12:12pm UTC](https://discourse.paraview.org/t/problem-in-self/2367/14 "2019-08-06T12:12:37Z")
Just untar it somewhere and run paraview.
---
### Author:  [@ikram](https://discourse.paraview.org/u/ikram)
#### Post date: [August 6, 2019, 7:40pm UTC](https://discourse.paraview.org/t/problem-in-self/2367/15 "2019-08-06T19:40:14Z")
hi mathiew , i uninstall parview and reinstall it , and i have the same issue , no programmable filter !!
how can i fixe it please ?
---
### Author:  [@ikram](https://discourse.paraview.org/u/ikram)
#### Post date: [August 6, 2019, 7:53pm UTC](https://discourse.paraview.org/t/problem-in-self/2367/16 "2019-08-06T19:53:30Z")
actually i fixed it , but when i click on apply of the programmable filter, the paraview shutdown !
😕
i need a solution please