diff --git a/sdks/python/julep/env.py b/sdks/python/julep/env.py
index 69a935e05..f4d7c69a6 100644
--- a/sdks/python/julep/env.py
+++ b/sdks/python/julep/env.py
@@ -4,9 +4,12 @@
 
 from .api.environment import JulepApiEnvironment
 
+# Initialize the environment variable handler.
 env = Env()
 
+# Optional environment variable for the Julep API key. Defaults to None if not set.
 JULEP_API_KEY: Optional[str] = env.str("JULEP_API_KEY", None)
+# Optional environment variable for the Julep API URL. Defaults to the Julep API's default environment URL if not set.
 JULEP_API_URL: Optional[str] = env.str(
     "JULEP_API_URL", JulepApiEnvironment.DEFAULT.value
 )