split out python feature from python-extension

Author: programmerjake

Cargo.toml

@@ -14,7 +14,8 @@ categories = ["algorithms", "data-structures", "science"]
 
 [features]
 default = []
-python-extension = ["pyo3", "pyo3/extension-module"]
+python = ["pyo3"]
+python-extension = ["python", "pyo3/extension-module"]
 
 [lib]
 name = "algebraics"

src/python.rs

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: LGPL-2.1-or-later
 // See Notices.txt for copyright information
 
-#![cfg(feature = "python-extension")]
+#![cfg(feature = "python")]
 
 use crate::algebraic_numbers::RealAlgebraicNumber;
 use crate::traits::ExactDivAssign;