OSL not working in 2.79 RC1 #52358

New Issue

Miguel Porces · 2017-08-11T18:36:59+02:00

Miguel Porces commented

2017-08-11 18:36:59 +02:00

System Information
Windows 10

Blender Version
Broken: 2.79 RC1 5e9132b
Worked: 2.78c

Short description of error
Python produces an «'ImportError: cannot import name '_remove_dead_weakref'», when choosing an osl script from the scriipt node

Exact steps for others to reproduce the error
Start Blender, choose Cycles, turn on OSL. Create a material for the default cube with an Osl script in it (any script will produce the same, even the templates from blender).
The script will not compile and the error will show in the console and in the InfoSpace.

**System Information** Windows 10 **Blender Version** Broken: 2.79 RC1 5e9132b Worked: 2.78c **Short description of error** Python produces an «'ImportError: cannot import name '_remove_dead_weakref'», when choosing an osl script from the scriipt node **Exact steps for others to reproduce the error** Start Blender, choose Cycles, turn on OSL. Create a material for the default cube with an Osl script in it (any script will produce the same, even the templates from blender). The script will not compile and the error will show in the console and in the InfoSpace.

Miguel Porces commented

2017-08-11 18:36:59 +02:00

Changed status to: 'Open'

Miguel Porces commented

2017-08-11 18:36:59 +02:00

Added subscriber: @Secrop

Ray molenkamp commented

2017-08-11 18:40:57 +02:00

Added subscriber: @LazyDodo

Ray molenkamp commented

2017-08-11 18:40:57 +02:00

I'm unable to reproduce on windows7/x64, what os are you on? does it work when you start blender with --factory-startup ?

Miguel Porces commented

2017-08-11 18:59:49 +02:00

It seems a python problem. I'm using Windows10/x64 and this is the output of the error with factory settings:

found bundled python: C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python
Traceback (most recent call last):
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 665, in exec_module
  File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
  File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\importlib\__init__.py", line 57, in <module>
    import types
  File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\types.py", line 166, in <module>
    import functools as _functools
  File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\functools.py", line 23, in <module>
    from weakref import WeakKeyDictionary
  File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\weakref.py", line 12, in <module>
    from _weakref import (
ImportError: cannot import name '_remove_dead_weakref'

During handling of the above exception, another exception occurred:

SystemError: <built-in function register> returned a result with an error set
Traceback (most recent call last):
  File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\scripts\addons\cycles\__init__.py", line 101, in update_script_node
    osl.update_script_node(node, self.report)
  File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\scripts\addons\cycles\osl.py", line 41, in update_script_node
    import shutil
  File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\shutil.py", line 10, in <module>
    import fnmatch
  File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\fnmatch.py", line 15, in <module>
    import functools
  File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\functools.py", line 23, in <module>
    from weakref import WeakKeyDictionary
  File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\weakref.py", line 12, in <module>
    from _weakref import (
ImportError: cannot import name '_remove_dead_weakref'

location: <unknown location>:-1

location: <unknown location>:-1

It seems a python problem. I'm using Windows10/x64 and this is the output of the error with factory settings: ``` found bundled python: C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python Traceback (most recent call last): File "<frozen importlib._bootstrap>", line 969, in _find_and_load File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 673, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 665, in exec_module File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\importlib\__init__.py", line 57, in <module> import types File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\types.py", line 166, in <module> import functools as _functools File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\functools.py", line 23, in <module> from weakref import WeakKeyDictionary File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\weakref.py", line 12, in <module> from _weakref import ( ImportError: cannot import name '_remove_dead_weakref' During handling of the above exception, another exception occurred: SystemError: <built-in function register> returned a result with an error set Traceback (most recent call last): File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\scripts\addons\cycles\__init__.py", line 101, in update_script_node osl.update_script_node(node, self.report) File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\scripts\addons\cycles\osl.py", line 41, in update_script_node import shutil File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\shutil.py", line 10, in <module> import fnmatch File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\fnmatch.py", line 15, in <module> import functools File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\functools.py", line 23, in <module> from weakref import WeakKeyDictionary File "C:\Users\Porces\Desktop\blender-2.79-rc1-windows64\2.79\python\lib\weakref.py", line 12, in <module> from _weakref import ( ImportError: cannot import name '_remove_dead_weakref' location: <unknown location>:-1 location: <unknown location>:-1 ```

Ray molenkamp commented

2017-08-11 19:18:32 +02:00

i'm also unable to repro on win10/32 bit.... in the future please be EXACT from the start on what you are running on so we don't waste a ton of time chasing ghosts.

while i install win10/x64, can you try the following

shut down blender.
go to

C:\Users[your user]\AppData\Roaming\Blender Foundation\Blender\2.79

and temporary rename it to

C:\Users[your user]\AppData\Roaming\Blender Foundation\Blender\2.79.bak

start blender and retry..

i'm also unable to repro on win10/32 bit.... in the future please be *EXACT* from the start on what you are running on so we don't waste a ton of time chasing ghosts. while i install win10/x64, can you try the following 1) shut down blender. 2) go to C:\Users\[your user]\AppData\Roaming\Blender Foundation\Blender\2.79 and temporary rename it to C:\Users\[your user]\AppData\Roaming\Blender Foundation\Blender\2.79.bak 3) start blender and retry..

Miguel Porces commented

2017-08-11 19:25:20 +02:00

Changing the 2.79 folder's name, or removing it completly still produces the same error in my win10/x64 machine.

I don't have any other OS in this machine to test it, but i'll try in the weekend to test it in linux to see if it happens there also.

Changing the 2.79 folder's name, or removing it completly still produces the same error in my win10/x64 machine. I don't have any other OS in this machine to test it, but i'll try in the weekend to test it in linux to see if it happens there also.

Ray molenkamp commented

2017-08-11 20:32:57 +02:00

can't reproduce on win10/x64 either.. maybe the unpacking somehow got interrupted and it's missing files? try redownloading the .zip and unpacking it again...

Sergey Sharybin commented

2017-08-11 20:39:26 +02:00

Added subscriber: @Sergey

Sergey Sharybin commented

2017-08-11 20:39:26 +02:00

Please attach exact .blends file which demonstrates the issue.

Brecht Van Lommel commented

2017-08-11 21:23:46 +02:00

Added subscriber: @brecht

Brecht Van Lommel commented

2017-08-11 21:23:46 +02:00

Do you have Python installed? Searching for this error message shows it's likely related to conflicting Python versions. More info on that:
https://docs.blender.org/manual/en/dev/troubleshooting/python.html

Do you have Python installed? Searching for this error message shows it's likely related to conflicting Python versions. More info on that: https://docs.blender.org/manual/en/dev/troubleshooting/python.html

Miguel Porces commented

2017-08-13 15:21:01 +02:00

Changed status from 'Open' to: 'Archived'

Miguel Porces closed this issue

2017-08-13 15:21:01 +02:00

Miguel Porces self-assigned this 2017-08-13 15:21:01 +02:00

Miguel Porces commented

2017-08-13 15:21:01 +02:00

After all it was my fault.

Some python files were corrupted.. Downloaded Blender again and it's now working.

sorry for the trouble

After all it was my fault. Some python files were corrupted.. Downloaded Blender again and it's now working. sorry for the trouble

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OSL not working in 2.79 RC1 #52358