feat: Configure optional feature for Python package (#91)

Author: yjshen

python/Cargo.toml

@@ -27,8 +27,11 @@ name = "hdfs_native._internal"
 [dependencies]
 bytes = "1.4" 
 env_logger = "0.10"
-hdfs-native = { path = "../crates/hdfs-native", features=["kerberos"] }
+hdfs-native = { path = "../crates/hdfs-native" }
 log = "0.4"
 pyo3 = { version = "0.20", features = ["extension-module", "abi3", "abi3-py38"] }
 thiserror = "1.0.43"
 tokio = { version = "1.28", features = ["rt-multi-thread"] }
+
+[features]
+kerberos = ["hdfs-native/kerberos"]