adding update from NfNitLoop

Author: Dylan Storey

example_project/src/main.rs

@@ -25,5 +25,8 @@ fn main() {
         py.run("logging.warning('WARNING')", None, None).unwrap();
         py.run("logging.error('ERROR')", None, None).unwrap();
         py.run("logging.critical('CRITICAL')", None, None).unwrap();
+
+
+        py.run("logging.getLogger('foo.bar.baz').info('INFO')", None, None).unwrap();
     });
 }

src/lib.rs

@@ -13,7 +13,7 @@ pub fn register(target: &str) {
 
 /// Consume a Python `logging.LogRecord` and emit a Rust `Log` instead.
 #[pyfunction]
-fn host_log(record: &PyAny, target: &str) -> PyResult<()> {
+fn host_log(record: &PyAny, rust_target: &str) -> PyResult<()> {
     let level = record.getattr("levelno")?;
     let message = record.getattr("getMessage")?.call0()?.to_string();
     let pathname = record.getattr("pathname")?.to_string();
@@ -22,7 +22,19 @@ fn host_log(record: &PyAny, target: &str) -> PyResult<()> {
         .to_string()
         .parse::<u32>()
         .unwrap();
-    let _logger_name = record.getattr("name")?.to_string();
+    
+    let logger_name = record.getattr("name")?.to_string();
+
+    let full_target: Option<String> = if logger_name.trim().is_empty() || logger_name == "root" {
+        None
+    } else {
+        // Libraries (ex: tracing_subscriber::filter::Directive) expect rust-style targets like foo::bar,
+        // and may not deal well with "." as a module separator:
+        let logger_name = logger_name.replace(".", "::");
+        Some(format!("{rust_target}::{logger_name}"))
+    };
+    let target = full_target.as_ref().map(|x| x.as_str()).unwrap_or(rust_target);
+
 
     // error
     let error_metadata = if level.ge(40u8)? {