Refactor and translate comments and docstrings in utility modules to English for better clarity and maintainability. Update Gunicorn and application startup messages for consistency in language. Enhance documentation with English translations for better accessibility.

backend_api_python/app/config/data_sources.py

@@ -1,5 +1,5 @@
 """
-数据源配置
+Data source configuration
 """
 import os
 
@@ -24,7 +24,7 @@ class MetaDataSourceConfig(type):
 
 
 class DataSourceConfig(metaclass=MetaDataSourceConfig):
-    """数据源通用配置"""
+    """General data source configuration."""
     pass
 
 
@@ -51,9 +51,7 @@ class MetaFinnhubConfig(type):
 
 
 class FinnhubConfig(metaclass=MetaFinnhubConfig):
-    """Finnhub 数据源配置"""
-    pass
-
+    """Finnhub data source configuration"""
 
 class MetaTiingoConfig(type):
     @property
@@ -68,9 +66,7 @@ class MetaTiingoConfig(type):
 
 
 class TiingoConfig(metaclass=MetaTiingoConfig):
-    """Tiingo 数据源配置"""
-    pass
-
+    """Tiingo data source configuration"""
 
 class MetaYFinanceConfig(type):
     @property
@@ -94,9 +90,7 @@ class MetaYFinanceConfig(type):
 
 
 class YFinanceConfig(metaclass=MetaYFinanceConfig):
-    """Yahoo Finance 数据源配置"""
-    pass
-
+    """Yahoo Finance data source configuration"""
 
 class MetaCCXTConfig(type):
     @property
@@ -146,7 +140,7 @@ class MetaCCXTConfig(type):
 
 
 class CCXTConfig(metaclass=MetaCCXTConfig):
-    """CCXT 加密货币数据源配置"""
+    """CCXT cryptocurrency data source configuration."""
     pass
 
 
@@ -166,5 +160,4 @@ class MetaAkshareConfig(type):
 
 
 class AkshareConfig(metaclass=MetaAkshareConfig):
-    """Akshare 数据源配置"""
-    pass
+    """Akshare data source configuration"""