No module named ‘download data’

jp13579 · April 4, 2023, 9:50pm

Hello all,

I am new to using SITK and I’m trying to follow the Environment setup tutorial but when I try to run the following “from download data import fetch_data, fetch_data_all” I get an error saying: “No module named ‘download data’. I checked the github repository and downloaddata seems to be one of the modules of SITK so I’m not sure what the issue is? I believe I need this to be able to read my png image properly. Can someone please help me with this?

The version of SITK I am using is: 2.2.1 (ITK 5.3)

dchen · April 5, 2023, 12:58am

downloaddata.py is from the SimpleITK notebooks. Here’s where it is:

github.com

InsightSoftwareConsortium/SimpleITK-Notebooks/blob/master/Utilities/downloaddata.py

#!/usr/bin/env python

"""
Since we do not want to store large binary data files in our Git repository,
we fetch_data_all from a network resource.

The data we download is described in a json file. The file format is a dictionary
of dictionaries. The top level key is the file name. The returned dictionary
contains a sha512 checksum and possibly a url and boolean flag indicating
the file is part of an archive. The sha512 checksum is mandatory.
When the optional url is given, we attempt to download from that url, otherwise
we attempt to download from the list of servers returned by the
get_servers() function. Files that are contained in archives are
identified by the archive flag.

Example json file contents:

{
 "SimpleITK.jpg": {
  "sha512": "f1b5ce1bf9d7ebc0bd66f1c3bc0f90d9e9798efc7d0c5ea7bebe0435f173355b27df632971d1771dc1fc3743c76753e6a28f6ed43c5531866bfa2b38f1b8fd46"

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