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devide.py

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+import os
+import shutil
+
+ROOT = "./"
+MAX_FILES = 8000  # 每个子目录最多文件数
+
+def split_directory(dirpath):
+    """
+    将 dirpath 下的直接文件分成 part_xxx 子目录
+    """
+    print(f"→ Splitting directory: {dirpath}")
+
+    files = [
+        f for f in os.listdir(dirpath)
+        if os.path.isfile(os.path.join(dirpath, f))
+    ]
+
+    total = len(files)
+    print(f"  Found {total} files.")
+
+    # 按 MAX_FILES 分块
+    for idx in range(0, total, MAX_FILES):
+        part = idx // MAX_FILES
+        subdir = os.path.join(dirpath, f"part_{part:03d}")
+        os.makedirs(subdir, exist_ok=True)
+
+        for filename in files[idx: idx + MAX_FILES]:
+            src = os.path.join(dirpath, filename)
+            dst = os.path.join(subdir, filename)
+            shutil.move(src, dst)
+
+        print(f"  - Created {subdir}")
+
+    print(f"✔ Completed: {dirpath}\n")
+
+
+def walk_and_process(root):
+    """
+    递归遍历整个目录树，发现需要拆分的目录就拆分
+    """
+    for dirpath, dirnames, filenames in os.walk(root):
+        # 过滤掉我们自己创建的 part_000/part_001 目录，避免再次处理
+        dirnames[:] = [d for d in dirnames if not d.startswith("part_")]
+
+        file_count = len([
+            f for f in filenames
+            if os.path.isfile(os.path.join(dirpath, f))
+        ])
+
+        if file_count > 10000:
+            print(f"▶ Found big directory: {dirpath} ({file_count} files)")
+            split_directory(dirpath)
+
+
+if __name__ == "__main__":
+    walk_and_process(ROOT)
+    print("🎉 All oversized directories processed.")