# LazyITKModule error

**URL:** https://discourse.itk.org/t/lazyitkmodule-error/1254
**Category:** Beginner Questions
**Created:** [September 5, 2018, 12:51pm UTC](https://discourse.itk.org/t/lazyitkmodule-error/1254 "2018-09-05T12:51:06Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Tirupathi\_Rao\_N](https://discourse.itk.org/letter_avatar_proxy/v4/letter/t/dc4da7/32.png) [@Tirupathi\_Rao\_N](https://discourse.itk.org/u/Tirupathi_Rao_N)
#### Post date: [September 5, 2018, 12:51pm UTC](https://discourse.itk.org/t/lazyitkmodule-error/1254/1 "2018-09-05T12:51:06Z")

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Hello ,  
I’m using latest version of itk in my python while calling function itk.ITKVTK() I’m getting an error of LazyITKModule object is not callable. I tried to search for solving error that is fixing scipy module, I’m facing some errors can’t able to fix the issue,I’m using Jupyter notebooks and anaconda.Please guide me to fix the error

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### Author: ![matt.mccormick](https://discourse.itk.org/user_avatar/discourse.itk.org/matt.mccormick/32/7_2.png) [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)
#### Post date: [September 5, 2018, 2:03pm UTC](https://discourse.itk.org/t/lazyitkmodule-error/1254/2 "2018-09-05T14:03:19Z")

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Hello @Tirupathi_Rao_N ,

`itk.ITKVTK` is not function; it is a Python module. This Python module contains Python classes for the corresponding [ITKVTK](https://itk.org/Insight/Doxygen/html/group__ITKVTK.html) ITK module.

Classes from this module can be nstantiated like this:

```auto
importer = itk.ITKVTK.VTKImageImport.New()

```

for example.

Classes from ITK modules are also made available in the top level `itk` package, so it is possible to call the shorter

```auto
importer = itk.VTKImageImport.New()

```

However, the classes that you probably want to use directly from Python are the classes from the [ITKVtkGlue](https://itk.org/Insight/Doxygen/html/group__ITKVtkGlue.html) module. Internally, `ITKVtkGlue` uses the `ITKVTK` classes. Because `ITKVtkGlue` requires building against VTK, it will be made available as a separate Python package, `itk-vtkglue`.

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### Author: ![Tirupathi\_Rao\_N](https://discourse.itk.org/letter_avatar_proxy/v4/letter/t/dc4da7/32.png) [@Tirupathi\_Rao\_N](https://discourse.itk.org/u/Tirupathi_Rao_N)
#### Post date: [September 5, 2018, 2:39pm UTC](https://discourse.itk.org/t/lazyitkmodule-error/1254/3 "2018-09-05T14:39:48Z")

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Thank you for replying @matt.mccormick,so i can use ItkvtGlue module to convert my itk image data into vtk image data right

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### Author: ![matt.mccormick](https://discourse.itk.org/user_avatar/discourse.itk.org/matt.mccormick/32/7_2.png) [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)
#### Post date: [September 6, 2018, 1:52pm UTC](https://discourse.itk.org/t/lazyitkmodule-error/1254/4 "2018-09-06T13:52:59Z")

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Correct
