depr(python): Make parameter of str.to_decimal keyword-only (pola-r…

…s#20570)
alexander-beedie · Jan 12, 2025 · c82fdd4 · c82fdd4
1 parent 74dad84
commit c82fdd4
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/py-polars/polars/expr/string.py b/py-polars/polars/expr/string.py
@@ -8,6 +8,7 @@
 from polars import functions as F
 from polars._utils.deprecation import (
     deprecate_function,
+    deprecate_nonkeyword_arguments,
     issue_deprecation_warning,
 )
 from polars._utils.parse import parse_into_expression
@@ -314,6 +315,7 @@ def strptime(
             msg = "`dtype` must be of type {Date, Datetime, Time}"
             raise ValueError(msg)
 
+    @deprecate_nonkeyword_arguments(allowed_args=["self"], version="1.20.0")
     def to_decimal(
         self,
         inference_length: int = 100,

diff --git a/py-polars/polars/series/string.py b/py-polars/polars/series/string.py
@@ -2,7 +2,7 @@
 
 from typing import TYPE_CHECKING
 
-from polars._utils.deprecation import deprecate_function
+from polars._utils.deprecation import deprecate_function, deprecate_nonkeyword_arguments
 from polars._utils.unstable import unstable
 from polars._utils.various import no_default
 from polars.datatypes.constants import N_INFER_DEFAULT
@@ -271,6 +271,7 @@ def strptime(
         ]
         """
 
+    @deprecate_nonkeyword_arguments(allowed_args=["self"], version="1.20.0")
     def to_decimal(
         self,
         inference_length: int = 100,