init

.gitignore

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+.venv
+.idea
+.config.cfg

app/config.py

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+import configparser
+from os import path
+
+# parse base config file
+config = configparser.ConfigParser()
+config_path = path.dirname(path.abspath(__file__))
+config.read(path.join(config_path, "../config_base.cfg"))
+
+# check if custom configuration file exists and eventually load it
+if path.exists((cfg_pth := path.join(config_path, "../config.cfg"))):
+    config.read(cfg_pth)
+
+settings = {
+    "mongodb_url": config.get("DB","MONGODB_URL")
+}

config_base.cfg

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+[DB]
+MONGODB_URL = "mongodb://localhost:27017"