python 查找目录中指定类型的所有文件

import sys
import os

def lm_find_files(path, target, result):
    """
    Basic Description:
            查找目录中指定类型的所有文件
            
    Detailed Description:
        
    Args:
        path: 查找的目录
		target: 目标文件类型，比如".json"
		result: 找到的目标文件列表
    Returns:
		result: 找到的目标文件列表
    Raises:
        exceptions
    """
    files = os.listdir(path);
    for f in files:
        npath = path + '/' + f
        if(os.path.isfile(npath)):
            if(os.path.splitext(npath)[1] == target):
                result.append(npath)
        if(os.path.isdir(npath)):
            if (f[0] == '.'):
                pass
            else:
                lm_find_files(npath, target, result)
    return result
    
def main(argv=None):
	result=[]
	lm_find_files("./",".json",result)
	print(result)

if __name__=="__main__":
	sys.exit(main())