Update README.md

Author: pydn

README.md

@@ -10,18 +10,74 @@ The `ComfyUI-to-Python-Extension` is a powerful tool that translates ComfyUI wor
 **To this:**
 
 ```
+import os
 import random
-import torch
 import sys
+from typing import Sequence, Mapping, Any, Union
+import torch
+
+
+def add_comfyui_directory_to_sys_path() -> None:
+    """
+    Recursively looks at parent folders starting from the current working directory until it finds 'ComfyUI'.
+    Once found, the directory is added to sys.path.
+    """
+    start_path = os.getcwd()  # Get the current working directory
+
+    def search_directory(path: str) -> None:
+        # Check if the current directory contains 'ComfyUI'
+        if "ComfyUI" in os.listdir(path):
+            directory_path = os.path.join(path, "ComfyUI")
+            sys.path.append(directory_path)
+            print(f"ComfyUI found and added to sys.path: {directory_path}")
+
+        # Get the parent directory
+        parent_directory = os.path.dirname(path)
+
+        # If the parent directory is the same as the current directory, we've reached the root and stop the search
+        if parent_directory == path:
+            return
+
+        # Recursively call the function with the parent directory
+        search_directory(parent_directory)
+
+    # Start the search from the current working directory
+    search_directory(start_path)
+
+
+def get_value_at_index(obj: Union[Sequence, Mapping], index: int) -> Any:
+    """Returns the value at the given index of a sequence or mapping.
+
+    If the object is a sequence (like list or string), returns the value at the given index.
+    If the object is a mapping (like a dictionary), returns the value at the index-th key.
+
+    Some return a dictionary, in these cases, we look for the "results" key
 
-sys.path.append("../")
+    Args:
+        obj (Union[Sequence, Mapping]): The object to retrieve the value from.
+        index (int): The index of the value to retrieve.
+
+    Returns:
+        Any: The value at the given index.
+
+    Raises:
+        IndexError: If the index is out of bounds for the object and the object is not a mapping.
+    """
+    try:
+        return obj[index]
+    except KeyError:
+        return obj["result"][index]
+
+
+add_comfyui_directory_to_sys_path()
 from nodes import (
-    VAEDecode,
+    CLIPTextEncode,
     KSamplerAdvanced,
-    EmptyLatentImage,
-    SaveImage,
     CheckpointLoaderSimple,
-    CLIPTextEncode,
+    VAEDecode,
+    SaveImage,
+    EmptyLatentImage,
+    NODE_CLASS_MAPPINGS,
 )
 
 
@@ -39,25 +95,26 @@ def main():
 
         cliptextencode = CLIPTextEncode()
         cliptextencode_6 = cliptextencode.encode(
-            text="evening sunset scenery blue sky nature, glass bottle with a galaxy in it",
-            clip=checkpointloadersimple_4[1],
+            text="Kylo Ren trapped inside of a Mark Rothko painting",
+            clip=get_value_at_index(checkpointloadersimple_4, 1),
         )
 
         cliptextencode_7 = cliptextencode.encode(
-            text="text, watermark", clip=checkpointloadersimple_4[1]
+            text="text, watermark", clip=get_value_at_index(checkpointloadersimple_4, 1)
         )
 
         checkpointloadersimple_12 = checkpointloadersimple.load_checkpoint(
             ckpt_name="sd_xl_refiner_1.0.safetensors"
         )
 
         cliptextencode_15 = cliptextencode.encode(
-            text="evening sunset scenery blue sky nature, glass bottle with a galaxy in it",
-            clip=checkpointloadersimple_12[1],
+            text="Kylo Ren trapped inside of a Mark Rothko painting",
+            clip=get_value_at_index(checkpointloadersimple_12, 1),
         )
 
         cliptextencode_16 = cliptextencode.encode(
-            text="text, watermark", clip=checkpointloadersimple_12[1]
+            text="text, watermark",
+            clip=get_value_at_index(checkpointloadersimple_12, 1),
         )
 
         ksampleradvanced = KSamplerAdvanced()
@@ -75,10 +132,10 @@ def main():
                 start_at_step=0,
                 end_at_step=20,
                 return_with_leftover_noise="enable",
-                model=checkpointloadersimple_4[0],
-                positive=cliptextencode_6[0],
-                negative=cliptextencode_7[0],
-                latent_image=emptylatentimage_5[0],
+                model=get_value_at_index(checkpointloadersimple_4, 0),
+                positive=get_value_at_index(cliptextencode_6, 0),
+                negative=get_value_at_index(cliptextencode_7, 0),
+                latent_image=get_value_at_index(emptylatentimage_5, 0),
             )
 
             ksampleradvanced_11 = ksampleradvanced.sample(
@@ -91,18 +148,19 @@ def main():
                 start_at_step=20,
                 end_at_step=10000,
                 return_with_leftover_noise="disable",
-                model=checkpointloadersimple_12[0],
-                positive=cliptextencode_15[0],
-                negative=cliptextencode_16[0],
-                latent_image=ksampleradvanced_10[0],
+                model=get_value_at_index(checkpointloadersimple_12, 0),
+                positive=get_value_at_index(cliptextencode_15, 0),
+                negative=get_value_at_index(cliptextencode_16, 0),
+                latent_image=get_value_at_index(ksampleradvanced_10, 0),
             )
 
             vaedecode_17 = vaedecode.decode(
-                samples=ksampleradvanced_11[0], vae=checkpointloadersimple_12[2]
+                samples=get_value_at_index(ksampleradvanced_11, 0),
+                vae=get_value_at_index(checkpointloadersimple_12, 2),
             )
 
             saveimage_19 = saveimage.save_images(
-                filename_prefix="ComfyUI", images=vaedecode_17[0]
+                filename_prefix="ComfyUI", images=get_value_at_index(vaedecode_17, 0)
             )
 
 
@@ -168,4 +226,4 @@ if __name__ == "__main__":
 
 9. After running `comfyui_to_python.py`, a new .py file will be created in the current working directory that contains the same name as the `input` variable. If you made no changes, look for `workflow_api.py`.
 
-10. Now you can execute the newly created .py file to generate images without launching a server.
+10. Now you can execute the newly created .py file to generate images without launching a server.