fix: PyExpr::__neq__ is not the != oeprator (#1276)

docs/Makefile

@@ -8,7 +8,7 @@ SPHINXBUILD   ?= sphinx-build
 SOURCEDIR     = .
 BUILDDIR      = _build
 
-.PHONY: Makefile help clean rust-html
+.PHONY: Makefile help rust-html
 
 # Put it first so that "make" without argument is like "make help".
 help:

pyvortex/src/expr.rs

@@ -80,6 +80,24 @@ use crate::dtype::PyDType;
 ///     "Joseph"
 ///   ]
 ///
+/// Read all the rows whose name is _not_ `Joseph`
+///
+/// >>> name = vortex.expr.column("name")
+/// >>> e = vortex.io.read_path("a.vortex", row_filter = name != "Joseph")
+/// >>> e.to_arrow_array()
+/// <pyarrow.lib.StructArray object at ...>
+/// -- is_valid: all not null
+/// -- child 0 type: int64
+///   [
+///     null,
+///     57
+///   ]
+/// -- child 1 type: string_view
+///   [
+///     "Angela",
+///     "Mikhail"
+///   ]
+///
 /// Read rows whose name is `Angela` or whose age is between 20 and 30, inclusive. Notice that the
 /// Angela row is excluded because its age is null. The entire row filtering expression therefore
 /// evaluates to null which is interpreted as false:
@@ -160,7 +178,7 @@ impl PyExpr {
         py_binary_opeartor(self_, Operator::Eq, coerce_expr(right)?)
     }
 
-    fn __neq__<'py>(
+    fn __ne__<'py>(
         self_: PyRef<'py, Self>,
         right: &Bound<'py, PyAny>,
     ) -> PyResult<Bound<'py, PyExpr>> {