Python的IO错误102 os.listdir（）

Question

我做了一个脚本，该脚本将映射我的目录，给我统计一下...... 这里的脚本：

import os 
import hashlib 
import platform 
import sys 
import argparse 
import HTML 

class Map(object): 

    def __init__(self,param): 
     self.param_list = param 
     self.slash = self.slash_by_os() 
     self.result_list = [] 
     self.os = "" 


    def calc_md5(self,file_path): 
     with open(file_path) as file_to_check: 
      data = file_to_check.read()  
      md5_returned = hashlib.md5(data).hexdigest() 

     return md5_returned 

    def slash_by_os(self): 
     general_id = platform.system() 
     actual_os = "" 

     if general_id == "Darwin" or general_id == "darwin": 
      actual_os = "UNIX" 
     elif general_id == "Linux" or general_id == "linux": 
      actual_os = "UNIX" 
     elif general_id == "SunOS": 
      actual_os = "UNIX" 
     elif general_id == "Windows" or general_id == "windows": 
      actual_os = "WIN" 
     else: 
      actual_os = general_id 

     if actual_os == "UNIX": 
      return '/' 
     elif actual_os == "WIN": 
      return '\\' 
     else: 
      return '/' 

     self.os = actual_os 

    def what_to_do(self,new_dir): 
     act = [] 
     act.append(new_dir[:-1]) 
     for param in self.param_list: 
      if param == "md5": 
       x = self.calc_md5(new_dir[:-1]) 
       act.append(x) 
      elif param == "size": 
       x = os.stat(new_dir[:-1]).st_size 
       act.append(x) 
      elif param == "access": 
       x = os.stat(new_dir[:-1]).st_atime 
       act.append(x) 
      elif param == "modify": 
       x = os.stat(new_dir[:-1]).st_mtime 
       act.append(x) 
      elif param == "creation": 
        x = os.stat(new_dir[:-1]).st_ctime 
        act.append(x) 

     return act 

    def list_of_files(self ,dir_name ,traversed = [], results = []): 

     dirs = os.listdir(dir_name) 
     if dirs: 
      for f in dirs: 
       new_dir = dir_name + f + self.slash 
       if os.path.isdir(new_dir) and new_dir not in traversed: 
        traversed.append(new_dir) 
        self.list_of_files(new_dir, traversed, results) 
       else: 
        act = self.what_to_do(new_dir) 
        results.append(act) 
     self.result_list = results 
     return results 


def parse_args(): 
    desc = "Welcom To dirmap.py 1.0" 
    parser = argparse.ArgumentParser(description=desc) 
    parser.add_argument('-p','--path', help='Path To Original Directory', required=True) 
    parser.add_argument('-md','--md5', action = 'store_true',help='Show md5 hash of file', required=False) 
    parser.add_argument('-s','--size', action = 'store_true', help='Show size of file', required=False) 
    parser.add_argument('-a','--access', action = 'store_true', help='Show access time of file', required=False) 
    parser.add_argument('-m','--modify', action = 'store_true', help='Show modification time of file', required=False) 
    parser.add_argument('-c','--creation', action = 'store_true', help='Show creation of file', required=False) 

    args = vars(parser.parse_args()) 

    params = [] 
    for key,value in args.iteritems(): 
     if value == True: 
      params.append(key) 

    return args,params 



def main(): 
    args , params = parse_args() 
    dir_path = args['path'] 
    map = Map(params) 
    dir_list = map.list_of_files(dir_path) 

    params.insert(0,"path") 


    htmlcode_dir = HTML.table(dir_list,header_row=params) 
    print htmlcode_dir 

main() 

，并在Linux上运行的env而我得到这个回溯：

MacBook-Pro:Python Scripts Daniel$ python dirmap.py -p/-md -s -a -m -c >> 1.html Traceback (most recent call last): File "dirmap.py", line 132, in main() File "dirmap.py", line 124, in main dir_list = map.list_of_files(dir_path) File "dirmap.py", line 89, in list_of_files act = self.what_to_do(new_dir) File "dirmap.py", line 61, in what_to_do x = self.calc_md5(new_dir[:-1]) File "dirmap.py", line 25, in calc_md5 with open(file_path, 'rb') as file_to_check: IOError: [Errno 102] Operation not supported on socket: '/.dbfseventsd'

我该如何解决我的问题？谢谢 ！

Answer 1

问题是当open（）在扫描各种文件时在套接字上运行时。你应该能够解决这个try/catch，通过捕获IOError。例如：

try: 
    with open(file_path) as file_to_check: 
     data = file_to_check.read()  
     md5_returned = hashlib.md5(data).hexdigest() 
except IOError as ioe: 
    print "Failed: " + str(ioe) 

但是，这将捕获所有io错误，而不仅仅是套接字。如果您想要处理此特定情况的错误消息，则在尝试打开它之前，您需要检查它是否是套接字。 有关如何检查文件是否为套接字，请参阅this。

另外，我注意到你正在手动检查使用哪个文件分隔符的平台。它内置为'os.path.sep'。查看python os.path模块以获得更多平台独立的遍历文件系统的方法。