some changes idk

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "plexcryptool"
-version = "0.2.0"
+version = "0.2.1"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

src/lib.rs

@@ -38,6 +38,7 @@ fn register_binary_module(py: Python, parent_module: &PyModule) -> PyResult<()>
 fn register_math_module(py: Python, parent_module: &PyModule) -> PyResult<()> {
     let math_module = PyModule::new(py, "math")?;
     math_module.add_function(wrap_pyfunction!(math::modexp::py_modular_exponentiation, math_module)?)?;
+    math_module.add_function(wrap_pyfunction!(math::pm1::py_p_minus_one, math_module)?)?;
     parent_module.add_submodule(math_module)?;
     Ok(())
 }

src/main.rs

@@ -31,7 +31,7 @@ use num_bigint;
 /*************************************************************************************************/
 // This is just structures for parsing Cli args
 #[derive(Parser, Debug)]
-#[command(author, version, about, long_about = None)]
+#[clap(name="plexcryptool", author="Christoph J. Scherr", version, about="Various tools for use with math and cryptology, includes executable and a library.")]
 struct Cli {
     /// Which submodule to use
     #[command(subcommand)]

src/math/pm1.rs

@@ -8,7 +8,7 @@
 /// License:    MIT
 /// Source:     <https://git.cscherr.de/PlexSheep/plexcryptool/>
 
-use pyo3::prelude::*;
+use pyo3::{prelude::*, exceptions::PyArithmeticError};
 
 use num::integer::gcd;
 
@@ -93,6 +93,17 @@ pub fn p_minus_one(n: u128, max_prime: u128, verbose: bool) -> Result<Vec<u128>,
     return Ok(prime_parts);
 }
 
+#[pyfunction]
+#[pyo3(name = "p_minus_one")]
+/// python wrapper for p_minus_one
+pub fn py_p_minus_one(n: u128, max_prime: u128, verbose: bool)-> PyResult<Vec<u128>> {
+    let res = p_minus_one(n, max_prime, verbose);
+    match res {
+        Ok(vec) => Ok(vec),
+        Err(e) => Err(PyArithmeticError::new_err(e))
+    }
+}
+
 /// alternative simple implementation for gcd
 pub fn alt_gcd(mut a: u128, mut b: u128) -> u128 {
     let mut tmp: u128;