fix some "json" capitalisation

py-polars/polars/expr/string.py

@@ -1232,8 +1232,8 @@ def json_decode(
 
         See Also
         --------
-        json_path_match : Extract the first match of json string with provided JSONPath
-            expression.
+        json_path_match : Extract the first match from a JSON string using the provided
+            JSONPath.
 
         Examples
         --------
@@ -1259,19 +1259,18 @@ def json_decode(
 
     def json_path_match(self, json_path: IntoExprColumn) -> Expr:
         """
-        Extract the first match of JSON string with the provided JSONPath expression.
+        Extract the first match from a JSON string using the provided JSONPath.
 
-        Throws errors if invalid JSON strings are encountered.
-        All return values will be cast to :class:`String` regardless of the original
-        value.
+        Throws errors if invalid JSON strings are encountered. All return values
+        are cast to :class:`String`, regardless of the original value.
 
-        Documentation on JSONPath standard can be found
+        Documentation on the JSONPath standard can be found
         `here <https://goessner.net/articles/JsonPath/>`_.
 
         Parameters
         ----------
         json_path
-            A valid JSON path query string.
+            A valid JSONPath query string.
 
         Returns
         -------

py-polars/polars/series/string.py

@@ -679,10 +679,10 @@ def json_decode(
 
     def json_path_match(self, json_path: IntoExprColumn) -> Series:
         """
-        Extract the first match of json string with provided JSONPath expression.
+        Extract the first match of JSON string with provided JSONPath expression.
 
-        Throw errors if encounter invalid json strings.
-        All return value will be cast to String regardless of the original value.
+        Throw errors if encounter invalid JSON strings.
+        All return values will be cast to String regardless of the original value.
 
         Documentation on JSONPath standard can be found
         `here <https://goessner.net/articles/JsonPath/>`_.

py-polars/tests/unit/operations/namespaces/string/test_string.py

@@ -688,8 +688,8 @@ def test_json_decode_primitive_to_list_11053() -> None:
     )
 
     output = df.select(
-        pl.col("json").str.json_decode(schema).alias("casted_json")
-    ).unnest("casted_json")
+        pl.col("json").str.json_decode(schema).alias("decoded_json")
+    ).unnest("decoded_json")
     expected = pl.DataFrame({"col1": [["123"], ["xyz"]], "col2": [["123"], None]})
     assert_frame_equal(output, expected)