Update dependencies

Cargo.toml

@@ -12,18 +12,18 @@ keywords = ["plot", "graph", "curve", "surface"]
 categories = ["science", "visualization", "mathematics", "graphics"]
 
 [dependencies]
-numpy = "0.21"
-ndarray = "0.15.6"
+numpy = "0.22.1"
+ndarray = "0.16.1"
 curve-sampling = { version = "0.5", optional = true, git = "https://github.com/Chris00/rust-curve-sampling.git" }
 lazy_static = "1.4.0"
 
 [dependencies.pyo3]
-version = "0.21.2"
+version = "0.22.5"
 features = ["auto-initialize"]
 
 [features]
 default = ["curve-sampling"]
 
 [dev-dependencies]
 doc-comment = "0.3.3"
-polars-core = { version = "0.38.1", features = ["fmt"] }
+polars-core = { version = "0.44.2", features = ["fmt"] }

examples/flower.rs

@@ -6,18 +6,21 @@ use matplotlib as plt;
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     let (fig, [[mut ax]]) = plt::subplots()?;
-    let pseudacorus_sepal_length = Series::new("Pseudacorus_Sepal_Length",
+    let pseudacorus_sepal_length = Series::new(
+        "Pseudacorus_Sepal_Length".into(),
         &[6.0,6.0,5.8,6.5,5.7,6.8,6.5,6.8,7.0,6.2,6.5,6.6,7.0,7.0,7.5,7.0,
             6.8,6.5,6.3,6.2,6.9,6.3,6.3,7.0,6.2,6.8,6.2,6.3,5.8,5.9,6.2,6.3,
             6.9,7.3,7.5,6.4,6.6,6.4,6.7,6.4,6.4,6.6,6.4,6.2,6.3,7.9,6.9,6.2,
             5.9,6.3]);
-    let pseudacorus_sepal_width = Series::new("Pseudacorus_Sepal_width",
+    let pseudacorus_sepal_width = Series::new(
+        "Pseudacorus_Sepal_width".into(),
         &[4.0,3.1,4.0,3.8,3.4,3.7,4.7,4.0,4.5,3.2,3.9,4.0,4.1,4.0,4.6,4.4,
             4.0,4.2,3.9,4.0,4.8,4.0,4.2,3.8,3.6,3.3,3.4,3.5,3.1,3.7,4.4,4.5,
             4.4,4.2,4.2,4.4,4.0,4.2,4.0,4.9,4.3,4.4,3.6,3.8,3.5,4.3,4.6,3.8,
             3.6,3.8]);
-    let df = DataFrame::new(
-        vec![pseudacorus_sepal_length,pseudacorus_sepal_width])?;
+    let df = DataFrame::new(vec![
+        Column::Series(pseudacorus_sepal_length),
+        Column::Series(pseudacorus_sepal_width)])?;
     println!("df is {:?}", &df);
     let x_col = df.column("Pseudacorus_Sepal_Length")?.f64()?;
     let y_col = df.column("Pseudacorus_Sepal_width")?.f64()?;

src/lib.rs

@@ -136,7 +136,7 @@ lazy_static! {
 
 /// Container for most of the (sub-)plot elements: Axis, Tick,
 /// [`Line2D`], Text, Polygon, etc., and sets the coordinate system.
-#[derive(Debug, Clone)]
+#[derive(Debug)]
 pub struct Axes {
     ax: PyObject,
 }
@@ -190,28 +190,29 @@ impl Figure {
     ) -> Result<[[Axes; C]; R], Error> {
         Python::with_gil(|py| {
             let axs = self.fig
-                .call_method1(py, "subplots", (R, C))?;
+                .bind(py)
+                .call_method1("subplots", (R, C))?;
             let axes;
             if R == 1 {
                 if C == 1 {
-                    axes = grid(|_,_| Axes { ax: axs.clone() });
+                    axes = grid(|_,_| Axes { ax: axs.clone().unbind() });
                 } else { // C > 1
                     let axg: &Bound<PyArray1<PyObject>> =
-                        axs.downcast_bound(py).unwrap();
+                        axs.downcast().unwrap();
                     axes = grid(|_,c| {
                         let ax = axg.get_owned(c).unwrap();
                         Axes { ax } });
                 }
             } else { // R > 1
                 if C == 1 {
                     let axg: &Bound<PyArray1<PyObject>> =
-                        axs.downcast_bound(py).unwrap();
+                        axs.downcast().unwrap();
                     axes = grid(|r,_| {
                         let ax = axg.get_owned(r).unwrap();
                         Axes { ax } });
                 } else { // C > 1
                     let axg: &Bound<PyArray2<PyObject>> =
-                        axs.downcast_bound(py).unwrap();
+                        axs.downcast().unwrap();
                     axes = grid(|r, c| {
                         let ax = axg.get_owned([r, c]).unwrap();
                         Axes { ax } });
@@ -238,8 +239,8 @@ impl Figure {
     }
 
     /// Save the figure to a file.
-    pub fn save(&self) -> Savefig {
-        Savefig { fig: self.fig.clone(), dpi: None }
+    pub fn save(&self) -> Savefig<'_> {
+        Savefig { fig: &self.fig, dpi: None }
     }
 
     /// Default width: 6.4, default height: 4.8
@@ -256,12 +257,12 @@ impl Figure {
 
 /// Options for saving figures.
 #[must_use]
-pub struct Savefig {
-    fig: PyObject,
+pub struct Savefig<'a> {
+    fig: &'a PyObject,
     dpi: Option<f64>,
 }
 
-impl Savefig {
+impl<'a> Savefig<'a> {
     pub fn dpi(&mut self, dpi: f64) -> &mut Self {
         if dpi > 0. {
             self.dpi = Some(dpi);
@@ -632,7 +633,7 @@ impl<'a> PlotOptions<'a> {
         }
     }
 
-    fn kwargs(&'a self, py: Python<'a>) -> Bound<PyDict> {
+    fn kwargs(&'a self, py: Python<'a>) -> Bound<'a, PyDict> {
         let kwargs = PyDict::new_bound(py);
         if self.animated {
             kwargs.set_item("animated", true).unwrap()