diff --git a/Cargo.toml b/Cargo.toml
index 393c5dc..46a9690 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -96,6 +96,7 @@ default = ["f64", "cpal-api", "record"]
 # Use this for debugging extensions
 # default = ["f64", "python-bindings", "record", "cpal-api"]
 
+pulse-api = []
 cpal-api = ["dep:cpal"]
 record = ["dep:hdf5-sys", "dep:hdf5", "dep:chrono", "dep:uuid"]
 f64 = []
diff --git a/src/daq/api/mod.rs b/src/daq/api/mod.rs
index 9f5e5be..29f352b 100644
--- a/src/daq/api/mod.rs
+++ b/src/daq/api/mod.rs
@@ -32,7 +32,7 @@ pub trait Stream {
 }
 
 /// Stream API descriptor: type and corresponding text
-#[cfg_attr(feature = "python-bindings", pyclass)]
+#[cfg_attr(feature = "python-bindings", pyclass(eq, eq_int))]
 #[derive(strum_macros::EnumMessage, Debug, Clone, PartialEq, Serialize, Deserialize, strum_macros::Display)]
 #[allow(dead_code)]
 pub enum StreamApiDescr {
diff --git a/src/daq/datatype.rs b/src/daq/datatype.rs
index d79fb66..ed53a63 100644
--- a/src/daq/datatype.rs
+++ b/src/daq/datatype.rs
@@ -8,7 +8,7 @@ use crate::config::*;
 /// Data type description for samples coming from a stream
 #[derive(strum_macros::EnumMessage, PartialEq, Copy, Debug, Clone, Serialize, Deserialize)]
 #[allow(dead_code)]
-#[cfg_attr(feature = "python-bindings", pyclass)]
+#[cfg_attr(feature = "python-bindings", pyclass(eq, eq_int))]
 pub enum DataType {
     /// 32-bit floats
     #[strum(message = "F32", detailed_message = "32-bits floating points")]
diff --git a/src/daq/mod.rs b/src/daq/mod.rs
index 5987c2e..408463a 100644
--- a/src/daq/mod.rs
+++ b/src/daq/mod.rs
@@ -50,7 +50,7 @@ use api::*;
 use crate::config::*;
 /// Stream types that can be started
 ///
-#[cfg_attr(feature = "python-bindings", pyclass)]
+#[cfg_attr(feature = "python-bindings", pyclass(eq, eq_int))]
 #[derive(PartialEq, Clone, Copy)]
 pub enum StreamType {
     /// Input-only stream
diff --git a/src/daq/qty.rs b/src/daq/qty.rs
index ec17140..c3049b7 100644
--- a/src/daq/qty.rs
+++ b/src/daq/qty.rs
@@ -8,7 +8,7 @@ use serde::{Serialize, Deserialize};
 
 /// Physical quantities that are I/O of a Daq device.
 #[derive(PartialEq, Serialize, Deserialize, strum_macros::EnumMessage, Debug, Clone, Copy)]
-#[cfg_attr(feature = "python-bindings", pyclass)]
+#[cfg_attr(feature = "python-bindings", pyclass(eq, eq_int))]
 #[allow(dead_code)]
 pub enum Qty {
     /// Number
diff --git a/src/daq/streamerror.rs b/src/daq/streamerror.rs
index cae0d19..b3f4539 100644
--- a/src/daq/streamerror.rs
+++ b/src/daq/streamerror.rs
@@ -2,8 +2,8 @@ use strum_macros::Display;
 use crate::config::*;
 
 /// Errors that happen in a stream
-#[derive(strum_macros::EnumMessage, Debug, Clone, Display, Copy)]
-#[cfg_attr(feature = "python-bindings", pyclass)]
+#[derive(strum_macros::EnumMessage, PartialEq, Debug, Clone, Display, Copy)]
+#[cfg_attr(feature = "python-bindings", pyclass(eq, eq_int))]
 pub enum StreamError {
     /// Input overrun
     #[strum(
diff --git a/src/filter/seriesbiquad.rs b/src/filter/seriesbiquad.rs
index e4457a1..10b6515 100644
--- a/src/filter/seriesbiquad.rs
+++ b/src/filter/seriesbiquad.rs
@@ -97,7 +97,7 @@ impl SeriesBiquad {
         let filter_coefs = &[1., 0., 0., 1., 0., 0.];
         SeriesBiquad::new(filter_coefs).unwrap()
     }
-    // pub fn fromZpk(ZerosOrPoles)
+
     fn clone_dyn(&self) -> Box<dyn Filter> {
         Box::new(self.clone())
     }
diff --git a/src/ps/aps.rs b/src/ps/aps.rs
index 82bc3cf..7a98bd7 100644
--- a/src/ps/aps.rs
+++ b/src/ps/aps.rs
@@ -587,12 +587,12 @@ mod test {
     #[test]
     #[should_panic]
     fn test_apssettings1() {
-        let s = ApsSettingsBuilder::default().build().unwrap();
+        let _ = ApsSettingsBuilder::default().build().unwrap();
     }
 
     #[test]
     fn test_apssettings2() {
-        let s = ApsSettingsBuilder::default()
+        let _ = ApsSettingsBuilder::default()
             .nfft(2048)
             .fs(1.0)
             .build()
diff --git a/src/ps/timebuffer.rs b/src/ps/timebuffer.rs
index 1408610..ec1e971 100644
--- a/src/ps/timebuffer.rs
+++ b/src/ps/timebuffer.rs
@@ -171,7 +171,7 @@ mod test {
         let tres = tb.pop(10, 5).unwrap();
         assert_eq!(tres.shape(), [10, 1]);
         assert_eq!(tb.nsamples(), 15);
-        let tres = tb.pop(10, 0).unwrap();
+        let _ = tb.pop(10, 0).unwrap();
         assert_eq!(tb.nsamples(), 5);
         let tres = tb.pop(5, 5).unwrap();
         assert_eq!(tres.shape(), [5, 1]);