diff --git a/src/config.rs b/src/config.rs
index 91c69b4..c52697d 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -131,6 +131,7 @@ impl Config {
         cfg_path: &std::path::Path,
         k: &str,
         v: &serde_yaml::Value,
+        verbose: bool,
     ) -> Result<()> {
         let vstr = serde_yaml::to_string(v)?;
         let vstr = vstr.trim();
@@ -192,7 +193,11 @@ impl Config {
                 }
             }
             _ => {
-                eprintln!("reclass-config.yml entry '{k}={vstr}' not implemented yet, ignoring...");
+                if verbose {
+                    eprintln!(
+                        "reclass-config.yml entry '{k}={vstr}' not implemented yet, ignoring..."
+                    );
+                }
             }
         };
 
@@ -203,8 +208,9 @@ impl Config {
     ///
     /// This method assumes that you've created a Config object with a suitable `inventory_path`.
     ///
-    /// The method will print diagnostic messages for config options which aren't implemented yet.
-    pub fn load_from_file(&mut self, config_file: &str) -> Result<()> {
+    /// If `verbose` is true, the method will print diagnostic messages for config options which
+    /// aren't implemented yet.
+    pub fn load_from_file(&mut self, config_file: &str, verbose: bool) -> Result<()> {
         let mut cfg_path = PathBuf::from(&self.inventory_path);
         cfg_path.push(config_file);
 
@@ -216,7 +222,7 @@ impl Config {
         {
             let kstr = serde_yaml::to_string(k)?;
             let kstr = kstr.trim();
-            self.set_option(&cfg_path, kstr, v)?;
+            self.set_option(&cfg_path, kstr, v, verbose)?;
         }
         self.compile_ignore_class_notfound_patterns()?;
         Ok(())
@@ -268,11 +274,18 @@ impl Config {
     }
 
     /// Creates a Config object based on the provided `inventory_path` and the config options
-    /// passed in the `config` Python dict.
+    /// passed in the `config` Python dict. If `verbose` is set to `true`, reclass-rs will print
+    /// diagnostic messages for unknown config options.
     ///
     /// Returns a `Config` object or raises a `ValueError`.
     #[classmethod]
-    fn from_dict(_cls: &PyType, inventory_path: &str, config: &PyDict) -> PyResult<Self> {
+    #[pyo3(signature = (inventory_path, config, verbose=false))]
+    fn from_dict(
+        _cls: &PyType,
+        inventory_path: &str,
+        config: &PyDict,
+        verbose: bool,
+    ) -> PyResult<Self> {
         let mut cfg = Config::new(Some(inventory_path), None, None, None).map_err(|e| {
             PyValueError::new_err(format!(
                 "Failed to initialize reclass-rs config object: {e}"
@@ -288,9 +301,10 @@ impl Config {
         for (k, v) in config {
             let kstr = k.extract::<&str>()?;
             let val: crate::types::Value = TryInto::try_into(v)?;
-            cfg.set_option(&cfg_path, kstr, &val.into()).map_err(|e| {
-                PyValueError::new_err(format!("Error while setting option {kstr}: {e}"))
-            })?;
+            cfg.set_option(&cfg_path, kstr, &val.into(), verbose)
+                .map_err(|e| {
+                    PyValueError::new_err(format!("Error while setting option {kstr}: {e}"))
+                })?;
         }
 
         Ok(cfg)
diff --git a/src/inventory.rs b/src/inventory.rs
index 294f686..96b9551 100644
--- a/src/inventory.rs
+++ b/src/inventory.rs
@@ -101,7 +101,7 @@ mod inventory_tests {
     #[test]
     fn test_render() {
         let mut c = crate::Config::new(Some("./tests/inventory"), None, None, None).unwrap();
-        c.load_from_file("reclass-config.yml").unwrap();
+        c.load_from_file("reclass-config.yml", false).unwrap();
         let r = Reclass::new_from_config(c).unwrap();
         let inv = Inventory::render(&r).unwrap();
 
@@ -263,7 +263,8 @@ mod inventory_tests {
             None,
         )
         .unwrap();
-        c.load_from_file("reclass-config-compat.yml").unwrap();
+        c.load_from_file("reclass-config-compat.yml", false)
+            .unwrap();
         let r = Reclass::new_from_config(c).unwrap();
 
         let inv = Inventory::render(&r).unwrap();
@@ -312,7 +313,7 @@ mod inventory_tests {
             None,
         )
         .unwrap();
-        c.load_from_file("reclass-config.yml").unwrap();
+        c.load_from_file("reclass-config.yml", false).unwrap();
         let r = Reclass::new_from_config(c).unwrap();
 
         let inv = Inventory::render(&r).unwrap();
diff --git a/src/lib.rs b/src/lib.rs
index 891d275..7519297 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -293,10 +293,16 @@ impl Reclass {
     ///
     /// Returns a `Reclass` instance or raises a `ValueError`
     #[classmethod]
-    fn from_config_file(cls: &PyType, inventory_path: &str, config_file: &str) -> PyResult<Self> {
+    #[pyo3(signature = (inventory_path, config_file, verbose=false))]
+    fn from_config_file(
+        cls: &PyType,
+        inventory_path: &str,
+        config_file: &str,
+        verbose: bool,
+    ) -> PyResult<Self> {
         let mut c = Config::new(Some(inventory_path), None, None, None)
             .map_err(|e| PyValueError::new_err(format!("{e}")))?;
-        c.load_from_file(config_file)
+        c.load_from_file(config_file, verbose)
             .map_err(|e| PyValueError::new_err(format!("{e}")))?;
         Self::from_config(cls, c)
     }
@@ -447,7 +453,7 @@ mod tests {
             None,
         )
         .unwrap();
-        c.load_from_file("reclass-config.yml").unwrap();
+        c.load_from_file("reclass-config.yml", true).unwrap();
         let r = Reclass::new_from_config(c).unwrap();
         assert_eq!(r.nodes.len(), 8);
         let mut nodes = r.nodes.keys().collect::<Vec<_>>();
diff --git a/src/node/node_render_tests_ignore_class_notfound_regexp.rs b/src/node/node_render_tests_ignore_class_notfound_regexp.rs
index 90b617b..76bcf0a 100644
--- a/src/node/node_render_tests_ignore_class_notfound_regexp.rs
+++ b/src/node/node_render_tests_ignore_class_notfound_regexp.rs
@@ -10,7 +10,7 @@ fn test_render_n1() {
         None,
     )
     .unwrap();
-    c.load_from_file("reclass-config.yml").unwrap();
+    c.load_from_file("reclass-config.yml", false).unwrap();
     let r = Reclass::new_from_config(c).unwrap();
 
     let n1 = r.render_node("n1").unwrap();
@@ -33,7 +33,7 @@ fn test_render_n2() {
         None,
     )
     .unwrap();
-    c.load_from_file("reclass-config.yml").unwrap();
+    c.load_from_file("reclass-config.yml", false).unwrap();
     let r = Reclass::new_from_config(c).unwrap();
 
     let n2 = r.render_node("n2");