python 把文件夹及子文件夹内的所有文件移动到指定文件夹中

【1】提取路径下所有文件到指定文件夹下

import shutil
import os
def move_files(source, dest):
    for root, dirs, files in os.walk(source):
        for file in files:
            source_path = os.path.join(root, file)
            destination_path = os.path.join(dest, file)
            shutil.move(source_path, destination_path)
# 请填写要移动的源文件夹和目标文件夹的路径
source_folder = "old"
destination_folder = "new_20230401"
move_files(source_folder, destination_folder)

【2】提取路径下所有指定后缀文件到指定文件夹下 ,以.txt为例

import shutil
import os
def move_txt_files(source, dest):
    for root, dirs, files in os.walk(source):
        for file in files:
            if file.endswith('.txt'):
                source_path = os.path.join(root, file)
                destination_path = os.path.join(dest, file)
                shutil.move(source_path, destination_path)
# 请填写要移动的源文件夹和目标文件夹的路径
source_folder = "src_folder"
destination_folder = "dst_folder"
if not os.path.exists(destination_folder):
    os.makedirs(destination_folder)
move_txt_files(source_folder, destination_folder)

【3】留言提到了不同文件夹下存在同名文件，想都保存下来。

建议直接将分散在各个文件夹内的原始文件，缀加文件夹名后重命名再移动，这样既保留了所有文件，又知道原始出处。如下：

import shutil
import os

def move_files(source, dest):
    for root, dirs, files in os.walk(source):
        for file in files:
            source_path = os.path.join(root, file)
            file_name, file_ext = os.path.splitext(file)
            folder_name = os.path.basename(root)
            new_file_name = f"{file_name}_{folder_name}{file_ext}"
            destination_path = os.path.join(dest, new_file_name)
            shutil.move(source_path, destination_path)

#
source_folder = "old"
destination_folder = "new"
move_files(source_folder, destination_folder)

【4】接上述第3，如果非要仅对同名的文件进行重命名。那就需要在移动每一个文件时对目标文件夹再重新遍历，相比3对多出n倍工作量。如下：

import shutil
import os

def move_files(source, dest):
    for root, dirs, files in os.walk(source):
        for file in files:
            source_path = os.path.join(root, file)
            file_name, file_ext = os.path.splitext(file)
            folder_name = os.path.basename(root)
            new_file_name = f"{file_name}{file_ext}"
            destination_path = os.path.join(dest, new_file_name)
            
            #遍历查找同名文件
            while os.path.exists(destination_path):
                new_file_name = f"{file_name}_{folder_name}{file_ext}"
                destination_path = os.path.join(dest, new_file_name)
            shutil.move(source_path, destination_path)

#
source_folder = "old"
destination_folder = "new"
move_files(source_folder, destination_folder)