diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 3b29d7584..b57d304d4 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -110,7 +110,7 @@ before committing your change. That will run our autoformatters:
 
 - ``rustfmt`` for Rust
 - ``fish_indent`` (shipped with fish) for fish script
-- ``black`` for python
+- ``ruff format`` for python
 
 If you’ve already committed your changes that’s okay since it will then
 check the files in the most recent commit. This can be useful after
diff --git a/build_tools/style.fish b/build_tools/style.fish
index 707246825..6f6b18c16 100755
--- a/build_tools/style.fish
+++ b/build_tools/style.fish
@@ -44,7 +44,7 @@ if test $all = yes
         end
     end
     set fish_files $workspace_root/{benchmarks,build_tools,etc,share}/**.fish
-    set python_files {doc_src,share,tests}/**.py
+    set python_files .
 else
     # Format the files specified as arguments.
     set -l files $argv
@@ -76,19 +76,19 @@ if set -q fish_files[1]
 end
 
 if set -q python_files[1]
-    if not type -q black
+    if not type -q ruff
         echo
-        echo $yellow'Please install `black` to style python'$normal
+        echo $yellow'Please install `ruff` to style python'$normal
         exit 127
     end
-    echo === Running "$green"black"$normal"
+    echo === Running "$green"ruff format"$normal"
     if set -l -q _flag_check
-        if not black --check $python_files
+        if not ruff format --check $python_files
             echo $red"Python files are not formatted correctly."$normal
             exit 1
         end
     else
-        black $python_files
+        ruff format $python_files
     end
 end
 
diff --git a/share/tools/web_config/webconfig.py b/share/tools/web_config/webconfig.py
index f8538501a..117344509 100755
--- a/share/tools/web_config/webconfig.py
+++ b/share/tools/web_config/webconfig.py
@@ -1423,7 +1423,7 @@ fish_bin_path = None
 fish_bin_name = "fish.exe" if is_windows() else "fish"
 
 if not fish_bin_dir:
-    print("The $__fish_bin_dir environment variable is not set. " "Looking in $PATH...")
+    print("The $__fish_bin_dir environment variable is not set. Looking in $PATH...")
     fish_bin_path = find_executable(fish_bin_name)
     if not fish_bin_path:
         print("fish could not be found. Is fish installed correctly?")
diff --git a/tests/pexpects/torn_escapes.py b/tests/pexpects/torn_escapes.py
index a528ef81e..1ab25b783 100644
--- a/tests/pexpects/torn_escapes.py
+++ b/tests/pexpects/torn_escapes.py
@@ -38,9 +38,7 @@ sendline(
         echo Got SIGUSR1 $sigusr1_count;
         commandline -f repaint;
     end
-""".strip().replace(
-        "\n", os.linesep
-    )
+""".strip().replace("\n", os.linesep)
 )
 expect_prompt()
 
@@ -51,9 +49,7 @@ sendline(
         set wacky_count (math $wacky_count + 1);
         echo Wacky Handler $wacky_count
     end
-""".strip().replace(
-        "\n", os.linesep
-    )
+""".strip().replace("\n", os.linesep)
 )
 expect_prompt()