The "ValueError: A PythonObject is not attached to a node" error occurs when using a script that attempts to access a node in Nuke that does not exist or has not been correctly attached to the script. This error can occur even when using a try/except block because the block may not catch all possible exceptions.
To resolve this error, you can check if the node that is causing the error exists before accessing it. You can do this by using the nuke.exists() function, which returns true if the node exists in the script.
Here is an example:
try:
node = nuke.toNode('NodeName')
if nuke.exists(node):
# Access the node here
pass
else:
print('Node does not exist')
except ValueError as e:
print('Error:', e)
This code will first try to access the node "NodeName". If the node exists, the script will continue to execute. If it does not exist, the script will print a message saying "Node does not exist".
By checking if the node exists before accessing it, you can avoid the "ValueError: A PythonObject is not attached to a node" error in your script.
Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss
Asked: 2023-02-24 11:00:00 +0000
Seen: 8 times
Last updated: Jan 28
How can popen() be used to direct streaming data to TAR?
In Python, can a string be utilized to retrieve a dataframe that has the same name as the string?
What is the method for merging field value and text into a singular line for display?
What is the method for programmatic access to a time series?