Improved app_config.get_config_value - added ability to get hierarchical YAML configs

app_config.py

@@ -31,6 +31,12 @@ def read_app_config():
     return j
 
 def get_config_value(cfg, section, key, default):
+    if '.' in section:
+        s = section.split('.', 1)
+        new_section = s[1]
+        new_cfg = cfg[s[0]]
+        return get_config_value(new_cfg, new_section, key, default)
+    else:
         return cfg[section][key] if section in cfg and key in cfg[section] else default
 
 def parse_config(cfg):

main.py

@@ -385,7 +385,7 @@ async def download_file(
 async def download_link(
         file_id: str
 ):
-    """Download a file by LINK (without API key)"""
+    """Download a file by DIRECT LINK (without API key)"""
     async with db_pool.acquire() as conn:
         # Get file info and verify ownership
         file_info = await conn.fetchrow("""