ComfyUI Node: FL Code Node

FL Code Node:

FL_CodeNode is designed to execute custom user-provided Python code, making it a versatile tool for integrating custom logic or algorithms into your workflows. This node allows you to input code directly as a string or load it from a specified file, providing flexibility in how you manage and execute your scripts. It processes dynamic inputs and offers four generic output slots, which can be used to capture the results of your code execution. The node includes predefined inputs and outputs dictionaries to facilitate interaction with the code, ensuring that you can easily pass data in and out of your scripts. Additionally, FL_CodeNode incorporates robust error handling to provide informative feedback in case of execution failures, making it easier to debug and refine your custom code.

FL Code Node Input Parameters:

code_input

This parameter allows you to input the Python code you wish to execute directly as a string. The default value is outputs[0] = 'hello, world!', which demonstrates a simple assignment to the first output slot. This input supports multiline text, enabling you to write more complex scripts. The code_input parameter is particularly useful when you want to quickly test or run small snippets of code without needing to save them to a file.

file

This parameter specifies the path to a Python file containing the code you wish to execute. The default value is ./res/hello.py. This input does not support multiline text and is intended for cases where your code is already saved in a file. Using this parameter can help manage larger scripts or when you prefer to keep your code organized in separate files.

use_file

This boolean parameter determines whether the node should execute the code provided in the file parameter instead of the code_input string. The default value is False. When set to True, the node will read and execute the code from the specified file, allowing you to switch between inline code and file-based code execution easily.

FL Code Node Output Parameters:

output_0

This is the first of the four generic output slots provided by the node. It captures the result of the code execution assigned to outputs[0]. The value and type of this output depend on the code you execute, making it highly flexible for various use cases.

output_1

This is the second output slot, corresponding to outputs[1]. Like output_0, the value and type of this output are determined by the code you execute, allowing you to capture different results or data points from your script.

output_2

This is the third output slot, corresponding to outputs[2]. It functions similarly to the other output slots, providing a place to store and retrieve results from your custom code execution.

output_3

This is the fourth and final output slot, corresponding to outputs[3]. It offers the same flexibility as the other output slots, enabling you to capture additional results or data points from your script.

FL Code Node Usage Tips:

• When writing code directly in the code_input parameter, make sure to test small snippets first to ensure they work as expected before integrating them into larger workflows.
• Use the file parameter to manage and execute larger scripts, which can help keep your workspace organized and make it easier to debug and maintain your code.
• Take advantage of the inputs and outputs dictionaries to pass data into and out of your scripts, making your code more modular and reusable.
• Always include error handling in your scripts to catch and manage exceptions, which can help prevent your workflows from failing unexpectedly.

FL Code Node Common Errors and Solutions:

Error executing user code: <error_message>

• Explanation: This error occurs when there is an issue with the Python code you provided, such as a syntax error or a runtime exception.
• Solution: Review the error message to identify the specific issue in your code. Check for common mistakes like syntax errors, undefined variables, or incorrect function calls. Debug and test your code in smaller parts to isolate and fix the problem.

[ FL Code Node] error loading code file: <error_message>

• Explanation: This error occurs when the node is unable to load the specified file, either because the file does not exist or there is an issue with the file path.
• Solution: Verify that the file path provided in the file parameter is correct and that the file exists at the specified location. Ensure that the file is accessible and not corrupted. If necessary, adjust the file path or move the file to the correct location.