Missing plugin with imread in SKIMAGE

[chaoxinzheng]

Building script with SKIMAGE as below:

import os
from skimage import io
import skimage
from skimage.viewer import ImageViewer
import sys
from tkinter import *
import PIL
from PIL import Image as PILImage
import PIL.ImageTk as imagetk
import tkinter.filedialog

path = tkinter.filedialog.askopenfilename()
moon = io.imread(path)
imviewer = ImageViewer(moon)
imviewer.show()

The above script works while in Spyder but generating the below error after building with Pyinstaller

Traceback (most recent call last):
  File "imread_example.py", line 13, in <module>
  File "site-packages\skimage\io\_io.py", line 61, in imread
  File "contextlib.py", line 77, in __exit__
  File "site-packages\skimage\io\util.py", line 36, in file_or_url_context
  File "site-packages\skimage\io\_io.py", line 61, in imread
  File "site-packages\skimage\io\manage_plugins.py", line 198, in call_plugin
RuntimeError: No suitable plugin registered for imread.

You may load I/O plugins with the `skimage.io.use_plugin` command.  A list of all available plugins are shown in the `skimage.io` docstring.

I have tried solution from this link, but not working.

https://stackoverflow.com/questions/40676027/pyinstaller-valueerror-too-many-values-to-unpack?noredirect=1&lq=1

It indicates that the library cannot be found.

[DongChen06]

hi, have you solved it?

[htgoebel]

You need to add the required plugins using --hidden-import.

The stackoverflow solution is wrong since you want to add python modules (I assume) and no data-files.

[htgoebel]

We would appreciate if you'd submit a hook for this. See https://pyinstaller.readthedocs.org/en/latest/hooks.html for more information about how to implement hooks.

[chaoxinzheng]

I solve this by using the solution from pyinstaller/pyinstaller#583

first put these at the top of the spec file:

_from distutils.sysconfig import get_python_lib
from os import path
skimage_plugins = Tree(
path.join(get_python_lib(), "skimage","io","_plugins"),
prefix=path.join("skimage","io","plugins"),
)

then i added 'skimage_plugins' the so it looks like below:

coll = COLLECT(exe,
a.binaries,
a.zipfiles,
a.datas,
skimage_plugins,
strip=False,
upx=True,
name='whatevername')

although i am facing other issues at the moment, but at least i got away with the error.

don't follow the stackoverflow solution. it was incorrect. not sure why it was given a tick.

[htgoebel]

Somebody to create a real hook for this?

You just need to use collect_data or collect_submodules (please check the other hooks for which one and test) to collect the plugins.

[chaoxinzheng]

Still not solved. But I don't need it any more. Don't know how to create the hook file.

…

On Sat, 1 Sep 2018, 21:04 Hartmut Goebel, ***@***.***> wrote: Reopened pyinstaller/pyinstaller-hooks-contrib#510 <#510>. — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub <#510>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AX-a1kwuUYqBLLpONVY6lobV0pyH1z1oks5uWug_gaJpZM4SJT94> .

[HoLuLuLu]

You can create a hook file hook-skimage.io.py with the following content:

from PyInstaller.utils.hooks import collect_data_files, collect_submodules

datas = collect_data_files("skimage.io._plugins")`
hiddenimports = collect_submodules('skimage.io._plugins')

From: https://stackoverflow.com/a/35043355

Method 1: (global)

You have to do this method only one time. Your PyInstaller will use the file every time you have a project with skimage.io.
Copy the file in the hooks-folder of your PyInstaller directory (for me it is in ~/.local/lib/python3.6/site-packages/PyInstaller on Ubuntu, C:\Users\username\AppData\Local\Programs\Python\Python36\Lib\site-packages\PyInstaller on Windows).
Now PyInstaller includes the _plugin-folder of your skimage.io package into the generated directory/file and all I/O-operations with skimage will work correctly.

Method 2: (only for current project)

This method is NOT global. Your PyInstaller need to get this file every time you have a project with skimage.io.
Copy the file in a folder near to your project files e.g. hooks.
Then you start PyInstaller use the --additional-hooks-dirattribute like this:

pyinstaller --additional-hooks-dir=./hooks script.py

./hooks must the path to the folder there your hook-skimage.io.py is placed. script.py is your script with the application you want to pack with PyInstaller. You have to call this attribute every time you want to pack this script.

Both methods work for one-file and one-directory mode.
I recommend to use method 1.

I uploaded the file here:
https://drive.google.com/open?id=17Gg3AP000UnxTfIc0PV7wy4IJ15MhTqb

hook-skimage.io.zip

[GenevieveBuckley]

Should this issue be closed now that pyinstaller/pyinstaller#3934 is merged?

[bwoodsend]

So it can