How do I query project engine settings config from python?

Development Programming & Scripting
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6

What I’m finding now is that it works - it changes the “EditorPerProjectUserSettings.ini” file, and updates it the way I want (it adds / changes settings).

The problem is that Unreal itself needs to be told to “read” the INI (ie. refresh the editor preferences) and I haven’t been able to find how to do that yet. :slight_smile:
Here’s my code anyway:

import os
import unreal
import sys

data = {}

proj_dir = unreal.Paths.project_dir()

ini_path = os.path.join(proj_dir, 'Saved', 'Config', 'WindowsEditor', 'EditorPerProjectUserSettings.ini').replace("\\","/")

# -----------------------------
# Read the INI file and store as
# an array variable called 'data'
# -----------------------------

print("*****************************")
print("-----------------------------")
print("AnimPal: Starting to optimize your settings...")

print("AnimPal: Reading INI file 'EditorPerProjectUserSettings.ini'...")

with open(ini_path, "r") as f:
    raw_data = f.read()
    
    section = ""
    lines = raw_data.split("\n")

    for line in lines:
        
        if len(line) == 0:
            continue

        if line.startswith("[") and line.endswith("]"):
            section = line[1:-1]
            data[section] = {}
            continue

        parts = line.split("=", 1)
        key = parts[0]
        value = ""

        if len(parts) > 1:
            value = parts[1]

        if not data[section].get(key):
            data[section][key] = value
            continue
        
        if isinstance(data[section][key], str):
            data[section][key] = [data[section][key]]
            
        data[section][key].append(value)






# ORBIT CAMERA AROUND SELECTION
print("-------")
try:
    # Tries to pull the value, to see if it exists
    orbitcamstatusstr = str(data['/Script/UnrealEd.LevelEditorViewportSettings']['bOrbitCameraAroundSelection'])
    if orbitcamstatusstr == "True":
        print("AnimPal: A setting for 'Orbit camera around selection' was found, and it's set to True. No change will be made.")
    else:
        print("AnimPal: A setting for 'Orbit camera around selection' was found, and it's set to False.")
        data['/Script/UnrealEd.LevelEditorViewportSettings']['bOrbitCameraAroundSelection'] = "True"
        print("AnimPal: Setting change to True.")
except:
    print("AnimPal: There is no current setting for 'Orbit camera around selection'. Adding a setting and making it True.")
    data['/Script/UnrealEd.LevelEditorViewportSettings']['bOrbitCameraAroundSelection'] = "True"
    print("AnimPal: Setting added.")





# -----------------------------
# Write back the INI file:
# -----------------------------
print("-------")
print("AnimPal: Starting to write INI file 'EditorPerProjectUserSettings.ini'.")

deleting_key=False

if deleting_key:
    if section in data:
        data[section].pop(key, None)
else:
    if not section in data:
        data[section] = {}
        
    data[section][key] = value

output = ""

for section_key, section_value in data.items():
    output += "[" + section_key + "]" + "\n"
    
    for item_key, item_value in section_value.items():
        
        if isinstance(item_value, str):
            output += item_key + "=" + item_value + "\n"
            
        elif isinstance(item_value, list):
            for list_item in item_value:
                output += item_key + "=" + list_item + "\n"
                
    output += "\n"

with open(ini_path, "w") as f:
    f.write(output)

print("AnimPal: Completed update of INI file 'EditorPerProjectUserSettings.ini'.")

print("AnimPal: Finished optimizing your settings.")
print("-----------------------------")
print("*****************************")
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