Fix issue #1726: isort ignores reverse_sort when force_sort_within_sections is true.

CHANGELOG.md

@@ -6,7 +6,8 @@ Find out more about isort's release policy [here](https://pycqa.github.io/isort/
 
 ### 5.9.0 TBD
   - Fixed (https://github.com/PyCQA/isort/pull/1695) added imports being added to doc string in some cases.
-  - Fixed (https://github.com/PyCQA/isort/pull/1714) in rare case line continuation combined with tab can output invalid code.
+  - Fixed (https://github.com/PyCQA/isort/pull/1714) in rare cases line continuation combined with tabs can output invalid code.
+  - Fixed (https://github.com/PyCQA/isort/pull/1726) isort ignores reverse_sort when force_sort_within_sections is true.
   - Implemented #1697: Provisional support for PEP 582: skip `__pypackages__` directories by default.
   - Implemented #1705: More intuitive handling of isort:skip_file comments on streams.
 

isort/output.py

@@ -108,6 +108,7 @@ def sorted_imports(
             new_section_output = sorting.naturally(
                 new_section_output,
                 key=partial(sorting.section_key, config=config),
+                reverse=config.reverse_sort,
             )
 
             # uncollapse comments

tests/unit/test_ticketed_features.py

@@ -1082,3 +1082,36 @@ def test_isort_can_push_star_imports_above_others_issue_1504():
 from ._bar import All, Any, Not
 """
     )
+
+
+def test_isort_can_combine_reverse_sort_with_force_sort_within_sections_issue_1726():
+    """isort should support reversing import order even with force sort within sections turned on.
+    See: https://github.com/PyCQA/isort/issues/1726
+    """
+    assert (
+        isort.code(
+            """
+import blaaa
+from bl4aaaaaaaaaaaaaaaa import r
+import blaaaaaaaaaaaa
+import bla
+import blaaaaaaa
+from bl1aaaaaaaaaaaaaa import this_is_1
+from bl2aaaaaaa import THIIIIIIIIIIIISS_is_2
+from bl3aaaaaa import less
+""",
+            length_sort=True,
+            reverse_sort=True,
+            force_sort_within_sections=True,
+        )
+        == """
+from bl2aaaaaaa import THIIIIIIIIIIIISS_is_2
+from bl1aaaaaaaaaaaaaa import this_is_1
+from bl4aaaaaaaaaaaaaaaa import r
+from bl3aaaaaa import less
+import blaaaaaaaaaaaa
+import blaaaaaaa
+import blaaa
+import bla
+"""
+    )