diff --git a/Cargo.toml b/Cargo.toml
index 6c76ecf..5ec6758 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,9 +12,26 @@ members = [
 ]
 default-members = [
 	"members/pt",
+	"members/pt-bin",
 	"members/pt-core",
 	"members/pt-py",
 	"members/pt-log",
 	"members/pt-math",
 ]
+[workspace.package]
+publish = false
+default-run = "pt"
+name = "libpt"
+version = "0.1.7"
+edition = "2021"
+authors = ["Christoph J. Scherr <software@cscherr.de>"]
+license = "MIT"
+description = "Personal multitool"
+readme = "README.md"
+homepage = "https://git.cscherr.de/PlexSheep/pt"
+repository = "https://git.cscherr.de/PlexSheep/pt"
+keywords = ["cli", "python", "scriptable", "pyo3", "library"]
+categories = ["command-line-utilities", "development-tools", "development-tools::ffi"]
 
+[workspace.dependencies]
+pyo3 = "0.19"
diff --git a/members/pt-bin/Cargo.toml b/members/pt-bin/Cargo.toml
index f7f64a7..5c00af2 100644
--- a/members/pt-bin/Cargo.toml
+++ b/members/pt-bin/Cargo.toml
@@ -1,4 +1,5 @@
 [package]
+autobins = true
 name = "pt-bin"
 version = "0.1.0"
 edition = "2021"
diff --git a/members/pt-ccc/src/main.rs b/members/pt-ccc/src/lib.rs
similarity index 100%
rename from members/pt-ccc/src/main.rs
rename to members/pt-ccc/src/lib.rs
diff --git a/members/pt-hedu/src/main.rs b/members/pt-hedu/src/lib.rs
similarity index 100%
rename from members/pt-hedu/src/main.rs
rename to members/pt-hedu/src/lib.rs
diff --git a/members/pt-log/Cargo.toml b/members/pt-log/Cargo.toml
index 9753159..af166c0 100644
--- a/members/pt-log/Cargo.toml
+++ b/members/pt-log/Cargo.toml
@@ -10,6 +10,7 @@ tracing = "0.1.37"
 tracing-appender = "0.2.2"
 tracing-subscriber = "0.3.17"
 env_logger = "0.10.0"
+pyo3 = {workspace = true}
 
 [dev-dependencies]
 gag = "1.0.0"
diff --git a/members/pt-log/src/error.rs b/members/pt-log/src/error.rs
index 9fb721b..435ee9f 100644
--- a/members/pt-log/src/error.rs
+++ b/members/pt-log/src/error.rs
@@ -18,6 +18,7 @@
 #![warn(clippy::pedantic)]
 
 //// IMPORTS ///////////////////////////////////////////////////////////////////////////////////////
+use pyo3::{exceptions::PyException, PyErr};
 use tracing::subscriber::SetGlobalDefaultError;
 
 //// TYPES /////////////////////////////////////////////////////////////////////////////////////////
@@ -57,6 +58,19 @@ impl From<SetGlobalDefaultError> for Error {
     }
 }
 
+////////////////////////////////////////////////////////////////////////////////////////////////////
+impl Into<PyErr> for Error {
+    fn into(self) -> PyErr {
+        match self {
+            Error::IO(err) => PyException::new_err(format!("LoggerError: IO {err:?}")),
+            Error::Usage(err) => PyException::new_err(format!("LoggerError: Usage {err}")),
+            Error::SetGlobalDefaultFail(err) => {
+                PyException::new_err(format!("LoggerError: SetGlobalDefaultFail {err}"))
+            }
+        }
+    }
+}
+
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 impl std::fmt::Debug for Error {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
@@ -82,3 +96,4 @@ impl std::fmt::Display for Error {
 //// PUBLIC FUNCTIONS //////////////////////////////////////////////////////////////////////////////
 
 //// PRIVATE FUNCTIONS /////////////////////////////////////////////////////////////////////////////
+
diff --git a/members/pt-log/src/lib.rs b/members/pt-log/src/lib.rs
index 6fe76cf..7cbf81b 100644
--- a/members/pt-log/src/lib.rs
+++ b/members/pt-log/src/lib.rs
@@ -25,6 +25,8 @@ use error::*;
 pub use tracing::{debug, error, info, trace, warn, Level};
 use tracing_appender;
 use tracing_subscriber::{prelude::*, fmt::format::FmtSpan};
+
+use pyo3::prelude::*;
 //// CONSTANTS /////////////////////////////////////////////////////////////////////////////////////
 /// The log level used when none is specified
 pub const DEFAULT_LOG_LEVEL: Level = Level::INFO;
@@ -52,6 +54,7 @@ static INITIALIZED: AtomicBool = AtomicBool::new(false);
 /// - `Info`
 /// - `Warn`
 /// - `Error`
+#[pyclass]
 pub struct Logger {}
 
 //// IMPLEMENTATION ////////////////////////////////////////////////////////////////////////////////
@@ -188,6 +191,61 @@ impl Logger {
     }
 }
 
+////////////////////////////////////////////////////////////////////////////////////////////////////
+/// ## Implementation of the python interface
+#[pymethods]
+impl Logger {
+    /// ## Python version of [`new()`](Logger::new)
+    #[new]
+    pub fn py_new() -> PyResult<Self> {
+        Ok(Logger::new())
+    }
+    /// ## Python version of [`init()`](Logger::init)
+    #[pyo3(name = "init")]
+    #[staticmethod]
+    pub fn py_init(log_dir: Option<PathBuf>, max_level: Option<String>) -> Result<()> {
+        Self::init(
+            log_dir,
+            match max_level {
+                Some(s) => match s.to_uppercase().as_str() {
+                    "TRACE" => Some(tracing::Level::TRACE),
+                    "DEBUG" => Some(tracing::Level::DEBUG),
+                    "INFO" => Some(tracing::Level::INFO),
+                    "WARN" => Some(tracing::Level::WARN),
+                    "ERROR" => Some(tracing::Level::ERROR),
+                    _ => return Err(Error::Usage(format!("'{s}' is not a valid log level"))),
+                },
+                None => None,
+            },
+        )
+    }
+    /// ## Python version of [`error()`](Logger::error)
+    #[pyo3(name = "error")]
+    pub fn py_error(&self, printable: String) {
+        self.error(printable)
+    }
+    /// ## Python version of [`warn()`](Logger::warn)
+    #[pyo3(name = "warn")]
+    pub fn py_warn(&self, printable: String) {
+        self.warn(printable)
+    }
+    /// ## Python version of [`info()`](Logger::info)
+    #[pyo3(name = "info")]
+    pub fn py_info(&self, printable: String) {
+        self.info(printable)
+    }
+    /// ## Python version of [`debug()`](Logger::debug)
+    #[pyo3(name = "debug")]
+    pub fn py_debug(&self, printable: String) {
+        self.debug(printable)
+    }
+    /// ## Python version of [`trace()`](Logger::trace)
+    #[pyo3(name = "trace")]
+    pub fn py_trace(&self, printable: String) {
+        self.trace(printable)
+    }
+}
+
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 impl fmt::Debug for Logger {
     /// ## Debug representation for [`Logger`]
@@ -203,3 +261,4 @@ impl fmt::Debug for Logger {
 //// PUBLIC FUNCTIONS //////////////////////////////////////////////////////////////////////////////
 
 //// PRIVATE FUNCTIONS /////////////////////////////////////////////////////////////////////////////
+
diff --git a/members/pt-py/Cargo.toml b/members/pt-py/Cargo.toml
index 4da490f..f0d14ed 100644
--- a/members/pt-py/Cargo.toml
+++ b/members/pt-py/Cargo.toml
@@ -6,3 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+pt = { version = "0.1.0", path = "../pt" }
+pyo3 = { workspace = true }
diff --git a/members/pt-py/src/lib.rs b/members/pt-py/src/lib.rs
index fa8f42a..bc2f15b 100644
--- a/members/pt-py/src/lib.rs
+++ b/members/pt-py/src/lib.rs
@@ -1,14 +1,98 @@
+use pt::*;
+
 use pyo3::prelude::*;
 
-/// Formats the sum of two numbers as string.
+//// PUBLIC FUNCTIONS //////////////////////////////////////////////////////////////////////////////
+/// ## Check if [`libpt`](crate) has been loaded
+///
+/// Always returns `true` if you can execute it.
 #[pyfunction]
-fn sum_as_string(a: usize, b: usize) -> PyResult<String> {
-    Ok((a + b).to_string())
+pub fn is_loaded() -> bool {
+    true
 }
 
-/// A Python module implemented in Rust.
+//// PRIVATE FUNCTIONS /////////////////////////////////////////////////////////////////////////////
+/// ## Python module: logger
 #[pymodule]
-fn pt_py(_py: Python, m: &PyModule) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(sum_as_string, m)?)?;
+fn py_logger(py: Python, parent: &PyModule) -> PyResult<()> {
+    let module = PyModule::new(py, "logger")?;
+    module.add_class::<Logger>()?;
+
+    parent.add_submodule(module)?;
     Ok(())
-}
\ No newline at end of file
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+/// ## Python module: common
+#[pymodule]
+fn py_common(py: Python, parent: &PyModule) -> PyResult<()> {
+    let module = PyModule::new(py, "common")?;
+    py_common_printing(py, module)?;
+
+    parent.add_submodule(module)?;
+    Ok(())
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+/// ## Python module: common.printing
+#[pymodule]
+fn py_common_printing(py: Python, parent: &PyModule) -> PyResult<()> {
+    let module = PyModule::new(py, "printing")?;
+    module.add_function(wrap_pyfunction!(common::printing::divider, module)?)?;
+    module.add_function(wrap_pyfunction!(common::printing::print_divider, module)?)?;
+
+    parent.add_submodule(module)?;
+    Ok(())
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+/// ## Python module: networking
+#[pymodule]
+fn py_networking(py: Python, parent: &PyModule) -> PyResult<()> {
+    let module = PyModule::new(py, "networking")?;
+    py_networking_monitoring(py, module)?;
+
+    parent.add_submodule(module)?;
+    Ok(())
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+/// ## Python module: networking.monitoring
+#[pymodule]
+fn py_networking_monitoring(py: Python, parent: &PyModule) -> PyResult<()> {
+    let module = PyModule::new(py, "monitoring")?;
+    py_networking_monitoring_uptime(py, module)?;
+
+    parent.add_submodule(module)?;
+    Ok(())
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+/// ## Python module: networking.monitoring.uptime
+#[pymodule]
+fn py_networking_monitoring_uptime(py: Python, parent: &PyModule) -> PyResult<()> {
+    let module = PyModule::new(py, "uptime")?;
+    module.add_class::<networking::monitoring::uptime::UptimeStatus>()?;
+    module.add_function(wrap_pyfunction!(
+        networking::monitoring::uptime::py_continuous_uptime_monitor,
+        module
+    )?)?;
+
+    parent.add_submodule(module)?;
+    Ok(())
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+/// ## Python module: root
+///
+/// This function is the entry point of [`PyO3`](pyo3). This is where the main module is built.
+#[pymodule]
+fn _libpt(py: Python, m: &PyModule) -> PyResult<()> {
+    m.add_function(wrap_pyfunction!(is_loaded, m)?)?;
+
+    // load sub modules
+    py_common(py, m)?;
+    py_logger(py, m)?;
+    py_networking(py, m)?;
+    Ok(())
+}
diff --git a/members/pt/Cargo.toml b/members/pt/Cargo.toml
index e746e81..4add354 100644
--- a/members/pt/Cargo.toml
+++ b/members/pt/Cargo.toml
@@ -1,18 +1,7 @@
 [package]
-publish = true
-autobins = true
 default-run = "pt"
-name = "libpt"
-version = "0.1.6"
-edition = "2021"
-authors = ["Christoph J. Scherr <software@cscherr.de>"]
-license = "GPL-3.0-or-later"
-description = "Personal multitool"
-readme = "README.md"
-homepage = "https://git.cscherr.de/PlexSheep/pt"
-repository = "https://git.cscherr.de/PlexSheep/pt"
-keywords = ["cli", "python", "scriptable", "pyo3", "library"]
-categories = ["command-line-utilities", "development-tools", "development-tools::ffi"]
+name = "pt"
+version = "0.1.0"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
@@ -39,7 +28,12 @@ num = "0.4.0"
 num-traits = "0.2.16"
 openssl = "0.10.55"
 openssl-sys = "0.9.90"
-pyo3 = "0.18.1"
+pt-bin = { version = "0.1.0", path = "../pt-bin" }
+pt-core = { version = "0.1.0", path = "../pt-core" }
+pt-hedu = { version = "0.1.0", path = "../pt-hedu" }
+pt-log = { version = "0.1.0", path = "../pt-log" }
+pt-math = { version = "0.1.0", path = "../pt-math" }
+pt-net = { version = "0.1.0", path = "../pt-net" }
 regex = "1.9.1"
 reqwest = { version = "0.11.18", features = ["blocking"] }
 serde = { version = "1.0.171", features = ["derive"] }
diff --git a/members/pt/src/lib.rs b/members/pt/src/lib.rs
index dd093e3..fc9bbff 100644
--- a/members/pt/src/lib.rs
+++ b/members/pt/src/lib.rs
@@ -21,109 +21,7 @@
 
 //// IMPORTS ///////////////////////////////////////////////////////////////////////////////////////
 /// contains useful code, such as macros, for general use
-pub mod common;
-/// logger used by libpt
-pub mod logger;
-/// networking tools
-pub mod networking;
-/// math tools
-pub mod math;
-
-use crate::logger::Logger;
-
-use pyo3::prelude::*;
-
-//// PUBLIC FUNCTIONS //////////////////////////////////////////////////////////////////////////////
-/// ## Check if [`libpt`](crate) has been loaded
-///
-/// Always returns `true` if you can execute it.
-#[pyfunction]
-pub fn is_loaded() -> bool {
-    true
-}
-
-//// PRIVATE FUNCTIONS /////////////////////////////////////////////////////////////////////////////
-/// ## Python module: logger
-#[pymodule]
-fn py_logger(py: Python, parent: &PyModule) -> PyResult<()> {
-    let module = PyModule::new(py, "logger")?;
-    module.add_class::<Logger>()?;
-
-    parent.add_submodule(module)?;
-    Ok(())
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-/// ## Python module: common
-#[pymodule]
-fn py_common(py: Python, parent: &PyModule) -> PyResult<()> {
-    let module = PyModule::new(py, "common")?;
-    py_common_printing(py, module)?;
-
-    parent.add_submodule(module)?;
-    Ok(())
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-/// ## Python module: common.printing
-#[pymodule]
-fn py_common_printing(py: Python, parent: &PyModule) -> PyResult<()> {
-    let module = PyModule::new(py, "printing")?;
-    module.add_function(wrap_pyfunction!(common::printing::divider, module)?)?;
-    module.add_function(wrap_pyfunction!(common::printing::print_divider, module)?)?;
-
-    parent.add_submodule(module)?;
-    Ok(())
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-/// ## Python module: networking
-#[pymodule]
-fn py_networking(py: Python, parent: &PyModule) -> PyResult<()> {
-    let module = PyModule::new(py, "networking")?;
-    py_networking_monitoring(py, module)?;
-
-    parent.add_submodule(module)?;
-    Ok(())
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-/// ## Python module: networking.monitoring
-#[pymodule]
-fn py_networking_monitoring(py: Python, parent: &PyModule) -> PyResult<()> {
-    let module = PyModule::new(py, "monitoring")?;
-    py_networking_monitoring_uptime(py, module)?;
-
-    parent.add_submodule(module)?;
-    Ok(())
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-/// ## Python module: networking.monitoring.uptime
-#[pymodule]
-fn py_networking_monitoring_uptime(py: Python, parent: &PyModule) -> PyResult<()> {
-    let module = PyModule::new(py, "uptime")?;
-    module.add_class::<networking::monitoring::uptime::UptimeStatus>()?;
-    module.add_function(wrap_pyfunction!(
-        networking::monitoring::uptime::py_continuous_uptime_monitor,
-        module
-    )?)?;
-
-    parent.add_submodule(module)?;
-    Ok(())
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
-/// ## Python module: root
-///
-/// This function is the entry point of [`PyO3`](pyo3). This is where the main module is built.
-#[pymodule]
-fn _libpt(py: Python, m: &PyModule) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(is_loaded, m)?)?;
-
-    // load sub modules
-    py_common(py, m)?;
-    py_logger(py, m)?;
-    py_networking(py, m)?;
-    Ok(())
-}
+pub use pt_core;
+pub use pt_log;
+pub use pt_net;
+pub use pt_hedu;