Auto str conversion for constants

granian/constants.py

@@ -1,25 +1,30 @@
 from enum import Enum
 
 
-class Interfaces(str, Enum):
+class StrEnum(str, Enum):
+    def __str__(self) -> str:
+        return str(self.value)
+
+
+class Interfaces(StrEnum):
     ASGI = 'asgi'
     ASGINL = 'asginl'
     RSGI = 'rsgi'
     WSGI = 'wsgi'
 
 
-class HTTPModes(str, Enum):
+class HTTPModes(StrEnum):
     auto = 'auto'
     http1 = '1'
     http2 = '2'
 
 
-class ThreadModes(str, Enum):
+class ThreadModes(StrEnum):
     runtime = 'runtime'
     workers = 'workers'
 
 
-class Loops(str, Enum):
+class Loops(StrEnum):
     auto = 'auto'
     asyncio = 'asyncio'
     uvloop = 'uvloop'