expose libs to polars (#2460)

polars/polars-core/src/chunked_array/ops/interpolate.rs

@@ -17,7 +17,7 @@ where
     fn interpolate(&self) -> Self {
         // This implementation differs from pandas as that boundary None's are not removed
         // this prevents a lot of errors due to expressions leading to different lengths
-        if !self.has_validity() {
+        if !self.has_validity() || self.null_count() == self.len() {
             return self.clone();
         }
 

polars/src/lib.rs

@@ -267,6 +267,8 @@
 pub mod docs;
 pub mod prelude;
 
+#[cfg(feature = "temporal")]
+pub use polars_core::time;
 #[cfg(feature = "dtype-categorical")]
 pub use polars_core::toggle_string_cache;
 pub use polars_core::{chunked_array, datatypes, doc, error, frame, functions, series, testing};

polars/src/prelude.rs

@@ -1,7 +1,10 @@
-pub use polars_core::prelude::QuantileInterpolOptions;
+pub use polars_core::frame::groupby::*;
 pub use polars_core::{prelude::*, utils::NoNull};
 #[cfg(feature = "polars-io")]
 pub use polars_io::prelude::*;
 
 #[cfg(feature = "lazy")]
 pub use polars_lazy::prelude::*;
+
+#[cfg(feature = "temporal")]
+pub use polars_core::time::*;