trying to understand how to make a python script that render, save the picture with the name of the Blender file, export a JSON file that according to the name of the Blender file assign some properties that I decide.
For example if the file name is AA3_CC6 I would like that the Json file contains something like: Shape: Cube Color: Red
Where "Shape: Cube" is represented by AA3 and "Color: Red" is represented by CC6
Any idea about the code or how to deal with this?
I wasn't sure if I should answer since it's mostly a Python question, but it has a few small Blender specific aspects...
import bpy, json from pathlib import Path C = bpy.context # define what identifiers mean: shapes = { "AA1": "Sphere", "AA2": "Cylinder", "AA3": "Cube", "AA4": "Torus", } colors = { "CC1": "White", "CC2": "Blue", "CC3": "Cyan", "CC4": "Green", "CC5": "Yellow", "CC6": "Red", "CC7": "Black", } blendpath = Path(C.blend_data.filepath) # create Path object based on absolute path to current .blend file JSONpath = blendpath.with_suffix(".txt") # where JSON will be saved fileformat = C.scene.render.image_settings.file_format.lower() renderpath = blendpath.with_suffix(f".{fileformat}") # where render will be saved if renderpath.exists() or JSONpath.exists(): raise FileExistsError("I don't want to override something!") shapeid, colorid = blendpath.stem.split("_") # assumes only one underscore shape = shapes[shapeid] # translate AA3 to Cube color = colors[colorid] # translate CC6 to Red output_dict = {"Shape": shape, "Color": color} # create a structure to be converted to JSON # using "x" instead of "w" to error if the file already exists, though very unlikely due to line 29 with open(JSONpath, "x") as f: json.dump(output_dict, f) C.scene.render.filepath = str(renderpath) # Blender gets confused without explicitly converting to str # thanks to "INVOKE_DEFAULT" the script will finish before the render is done and so will not hang the interface bpy.ops.render.render("INVOKE_DEFAULT", write_still=True) 
from pathlib import upvote sice the file can't exist (error thrown in code above), could use JSONpath.write_text(json.dumpa(output_dictt) Inclined to close as dupe (first in borcker's comment below question), Thoughts? $\endgroup$ .write_text(). $\endgroup$ i used this base code to resolve this
# 1 - Export data as JSON file # dict with all your data dict = { "description": "description", "external_url": "external_url", "image": "image", "name": "name", "attributes": [ "a", "b", "c" ], } # encode dict as JSON data = json.dumps(dict, indent=1, ensure_ascii=True) # set output path and file name (set your own) save_path = 'YOUR PATH' file_name = os.path.join(save_path, "test.json") # write JSON file with open(file_name, 'w') as outfile: outfile.write(data + '\n') # 2 - Import data from JSON file # read JSON file #with open(file_name, 'r') as fp: # data_file = json.load(fp) # get data name = data_file['name'] attributes = data_file['attributes'] description = data_file['description'] image = data_file['image'] url = data_file['external_url'] print({ "description": description, "external_url": url, "image": image, "name": name, "attributes": attributes, }) 