wx.lib.agw.thumbnailctrl (IO Error and other problems)

Javier_Pais · May 10, 2015, 3:07pm

Hello,

I’m trying to use wx.lib.agw.thumbnailctrl but I got, randomly, several crashes:

python: Fatal IO error 11 (El recurs no es troba disponible temporalment) on X server :0.0.
python: Fatal IO error 0 (El recurs no es troba disponible temporalment) on X server :0.0.
A X server frozen

I’m running ubuntu 14.04 with:

Python 2.7.6
wx-2.8-gtk2-unicode
Pillow 1.1.7

Originally I’veen trying to use a inherited class from ThumbnailCtrl. Thinking that the crash where caused by my code. I discarded my inheritance and all my code and get trying with the demo downloaded from here: https://groups.google.com/group/wxpython-users/attach/3b5f2e5d303d1eb/ThumbnailCtrl.zip?part=0.1&authuser=0&view=1

Replacing the 4th line to use the ThumbnailCtrl distributed with wxPython:

import wx.lib.agw.thumbnailctrl as TC

While the image list is short enough, it runs well, but when the list is more large, I’ve got the same issue…

Could someone help me to get this component working?

Tank you,

···

Javier_Pais · May 11, 2015, 8:17am

Ok, I’ve got it… it’s caused by the old thread and it’s use… one approach could be using the new threading, process, multiprocessing, …

Here’s a little (improvable) patch, that works for me:

— /usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/lib/agw/thumbnailctrl.py.old
+++ /usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/lib/agw/thumbnailctrl.py
@@ -137,7 +137,7 @@
import cStringIO
import zlib

-import thread
+import threading
from math import pi

from wx.lib.embeddedimage import PyEmbeddedImage
@@ -1460,7 +1460,6 @@

         if not self._isrunning:
             self._isrunning = False

           thread.exit()
           return

       self.LoadImages(filenames[count], count)

@@ -1472,8 +1471,6 @@
count = count + 1

     self._isrunning = False

```
   thread.exit()
```

···

 def LoadImages(self, newfile, imagecount):
     """

@@ -1484,7 +1481,6 @@
“”"

     if not self._isrunning:

       thread.exit()
       return

   img, originalsize, alpha = self._imageHandler.LoadThumbnail(newfile, (300, 240))

@@ -1519,8 +1515,9 @@
newfiles = SortFiles(items, self._items, myfiles)
self._isrunning = True

   thread.start_new_thread(self.ThreadImage, (newfiles,))

```
   wx.MilliSleep(20)
```

   t = threading.Thread(target=self.ThreadImage, args=(newfiles,))

```
   t.start()
```

   t.join()

   self._selectedarray = []
   self.UpdateProp()

El domingo, 10 de mayo de 2015, 18:30:44 (UTC+2), Javier Pais escribió:

Hello,

I’m trying to use wx.lib.agw.thumbnailctrl but I got, randomly, several crashes:

python: Fatal IO error 11 (El recurs no es troba disponible temporalment) on X server :0.0.

python: Fatal IO error 0 (El recurs no es troba disponible temporalment) on X server :0.0.

A X server frozen

I’m running ubuntu 14.04 with:

Python 2.7.6

wx-2.8-gtk2-unicode

Pillow 1.1.7

Originally I’veen trying to use a inherited class from ThumbnailCtrl. Thinking that the crash where caused by my code. I discarded my inheritance and all my code and get trying with the demo downloaded from here: https://groups.google.com/group/wxpython-users/attach/3b5f2e5d303d1eb/ThumbnailCtrl.zip?part=0.1&authuser=0&view=1

Replacing the 4th line to use the ThumbnailCtrl distributed with wxPython:

import wx.lib.agw.thumbnailctrl as TC

While the image list is short enough, it runs well, but when the list is more large, I’ve got the same issue…

Could someone help me to get this component working?

Tank you,

Javier_Pais · May 11, 2015, 8:19am

I forgot to attach the patch file, here it is!

parche.diff (1.21 KB)

···

El lunes, 11 de mayo de 2015, 10:17:02 (UTC+2), Javier Pais escribió:

Ok, I’ve got it… it’s caused by the old thread and it’s use… one approach could be using the new threading, process, multiprocessing, …

Here’s a little (improvable) patch, that works for me:

— /usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/lib/agw/thumbnailctrl.py.old
+++ /usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/lib/agw/thumbnailctrl.py
@@ -137,7 +137,7 @@
import cStringIO
import zlib

-import thread
+import threading
from math import pi

from wx.lib.embeddedimage import PyEmbeddedImage
@@ -1460,7 +1460,6 @@
         if not self._isrunning:
             self._isrunning = False
           thread.exit()
           return

       self.LoadImages(filenames[count], count)
@@ -1472,8 +1471,6 @@
count = count + 1
     self._isrunning = False
   thread.exit()
 def LoadImages(self, newfile, imagecount):
     """
@@ -1484,7 +1481,6 @@
“”"
     if not self._isrunning:
       thread.exit()
       return

   img, originalsize, alpha = self._imageHandler.LoadThumbnail(newfile, (300, 240))
@@ -1519,8 +1515,9 @@
newfiles = SortFiles(items, self._items, myfiles)
self._isrunning = True
   thread.start_new_thread(self.ThreadImage, (newfiles,))
   wx.MilliSleep(20)
   t = threading.Thread(target=self.ThreadImage, args=(newfiles,))
   t.start()
   t.join()

   self._selectedarray = []
   self.UpdateProp()
El domingo, 10 de mayo de 2015, 18:30:44 (UTC+2), Javier Pais escribió:

Hello,

I’m trying to use wx.lib.agw.thumbnailctrl but I got, randomly, several crashes:

python: Fatal IO error 11 (El recurs no es troba disponible temporalment) on X server :0.0.

python: Fatal IO error 0 (El recurs no es troba disponible temporalment) on X server :0.0.

A X server frozen

I’m running ubuntu 14.04 with:

Python 2.7.6

wx-2.8-gtk2-unicode

Pillow 1.1.7

Originally I’veen trying to use a inherited class from ThumbnailCtrl. Thinking that the crash where caused by my code. I discarded my inheritance and all my code and get trying with the demo downloaded from here: https://groups.google.com/group/wxpython-users/attach/3b5f2e5d303d1eb/ThumbnailCtrl.zip?part=0.1&authuser=0&view=1

Replacing the 4th line to use the ThumbnailCtrl distributed with wxPython:

import wx.lib.agw.thumbnailctrl as TC

While the image list is short enough, it runs well, but when the list is more large, I’ve got the same issue…

Could someone help me to get this component working?

Tank you,