diff --git a/data_structures/linked_list/partition_linked_list.py b/data_structures/linked_list/partition_linked_list.py
index 6cc9a66793b8..52bc5ed35989 100644
--- a/data_structures/linked_list/partition_linked_list.py
+++ b/data_structures/linked_list/partition_linked_list.py
@@ -103,9 +103,9 @@ def add(self, item: Any, position: int = 0) -> None:
 
     def partition_liked_list(self, value: int) -> None:
         """
-        Partition Linked List based on node elements in-order.
-        All nodes with elements less than value should occur in the left,
-        while those greater than to value, in the right.
+        Partition the linked list based on node elements in order.
+        All nodes with elements less than value should occur on the left,
+        while those greater than or equal to value should occur on the right.
 
         >>> linked_list = LinkedList()
         >>> linked_list.add(1)
@@ -156,7 +156,7 @@ def partition_liked_list(self, value: int) -> None:
         1
         """
         if self.head is None:
-            return None
+            return
 
         less_nodes, greater_nodes = Node(0), Node(0)
         current, current_less, current_greater = self.head, less_nodes, greater_nodes
diff --git a/scripts/pr_file_map.py b/scripts/pr_file_map.py
new file mode 100644
index 000000000000..338c7f95d4ac
--- /dev/null
+++ b/scripts/pr_file_map.py
@@ -0,0 +1,115 @@
+#!/usr/bin/env python3
+"""
+pr_file_map.py
+
+Lists all open pull requests in the current directory's git repo (via `gh`)
+and, for each file touched by any open PR, which PR number(s) touch it.
+
+Output is GitHub-flavored Markdown: a sorted list of files that currently
+exist in the working directory, each with its modifying PR numbers, followed
+by a separate section for files referenced by open PRs but that do not exist
+in the working directory (e.g. deleted, renamed, or on a branch not checked
+out locally).
+
+Requirements: gh (GitHub CLI), authenticated (`gh auth login`)
+
+Usage:
+    ./pr_file_map.py
+    ./pr_file_map.py > report.md
+"""
+
+import json
+import os
+import shutil
+import subprocess
+import sys
+from collections import defaultdict
+
+
+def run_gh(args: list[str]) -> str:
+    try:
+        result = subprocess.run(  # noqa: S603
+            ["gh", *args],  # noqa: S607
+            capture_output=True,
+            text=True,
+            check=True,
+        )
+    except FileNotFoundError:
+        sys.exit("Error: 'gh' (GitHub CLI) is not installed or not in PATH.")
+    except subprocess.CalledProcessError as e:
+        sys.exit(f"Error running 'gh {' '.join(args)}':\n{e.stderr.strip()}")
+    return result.stdout
+
+
+def check_gh_auth() -> None:
+    try:
+        subprocess.run(
+            ["gh", "auth", "status"],  # noqa: S607
+            capture_output=True,
+            text=True,
+            check=True,
+        )
+    except subprocess.CalledProcessError:
+        sys.exit("Error: gh is not authenticated. Run 'gh auth login' first.")
+
+
+def get_open_prs() -> list[dict]:
+    raw = run_gh(
+        ["pr", "list", "--state", "open", "--limit", "1000", "--json", "number,title"]
+    )
+    return json.loads(raw)
+
+
+def get_pr_files(pr_number: int) -> list[str]:
+    raw = run_gh(["pr", "view", str(pr_number), "--json", "files"])
+    data = json.loads(raw)
+    return [f["path"] for f in data.get("files", [])]
+
+
+def main() -> None:
+    if shutil.which("gh") is None:
+        sys.exit("Error: 'gh' (GitHub CLI) is not installed or not in PATH.")
+
+    check_gh_auth()
+
+    prs = get_open_prs()
+    if not prs:
+        print("No open pull requests found.")
+        return
+
+    file_to_prs: dict[str, list[int]] = defaultdict(list)
+
+    for pr in prs:
+        pr_number = pr["number"]
+        for path in get_pr_files(pr_number):
+            file_to_prs[path].append(pr_number)
+
+    existing: dict[str, list[int]] = {}
+    missing: dict[str, list[int]] = {}
+
+    for path, pr_numbers in file_to_prs.items():
+        target = existing if os.path.exists(path) else missing
+        target[path] = sorted(set(pr_numbers))
+
+    # --- Render GitHub-flavored Markdown ---
+    print("# Open Pull Request File Map\n")
+
+    print("## Existing files\n")
+    if existing:
+        for path in sorted(existing):
+            pr_list = " ".join(f"#{n}" for n in existing[path])
+            print(f"- `{path}`: {pr_list}")
+    else:
+        print("_None._")
+
+    print("\n## Files not present in the working directory\n")
+    if missing:
+        for path in sorted(missing):
+            pr_list = " ".join(f"#{n}" for n in missing[path])
+            print(f"- `{path}`: {pr_list}")
+    else:
+        print("_None._")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/sorts/bucket_sort.py b/sorts/bucket_sort.py
index c83470636083..98185cbd32ca 100644
--- a/sorts/bucket_sort.py
+++ b/sorts/bucket_sort.py
@@ -77,6 +77,10 @@ def bucket_sort(
     >>> data = [9, 2, 7, 1, 5]
     >>> bucket_sort(data) == sorted(data)
     True
+    >>> bucket_sort(data, 3.5)
+    Traceback (most recent call last):
+    ...
+    TypeError: bucket_count must be an integer
     """
 
     if not isinstance(bucket_count, int):