permission change of files in python

Question

I want to change the file permission for all the files from my current directory tree. I am trying to open each directory and open the files and change the permission using os.chmod(), But getting an error.

import os
import stat

for files in os.walk('.'):
        os.chmod(files,stat.S_IXGRP)

The error I get is:

File "delhis.py", line 4, in ? os.chmod(files,stat.S_IXGRP) TypeError: coercing to Unicode: need string or buffer, tuple found

@All This is the error I am getting: File "delhis.py", line 4, in ? os.chmod(files,stat.S_IXGRP) TypeError: coercing to Unicode: need string or buffer, tuple found — vrbilgi, Aug 29 '11 at 09:27

score 33 · Accepted Answer · answered Aug 29 '11 at 09:28

33

You are using os.walk incorrectly.

for dirpath, dirnames, filenames in os.walk('.'):
    for filename in filenames:
        path = os.path.join(dirpath, filename)
        os.chmod(path, 0o777) # for example

answered Aug 29 '11 at 09:28

Dietrich Epp

205,541
37
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for proof, instead of running chmod, change your current code to `print files` – Ben Aug 29 '11 at 09:30

score 2 · Answer 2 · edited Sep 29 '15 at 10:21

2

You can instead use an OS specific function call as follows:

os.system('chmod 777 -R *')

edited Sep 29 '15 at 10:21

Martin Evans

45,791
17
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97

answered Sep 29 '15 at 05:25

user3262160

39
1

score 0 · Answer 3 · answered Jun 02 '18 at 05:13

If you just want to make the file open to everyone, you can use the following class:

import win32security
import ntsecuritycon

class Win32FileSecurityMod:
  def __init__(self):
    self.security_dict = {}
    # return tuple from LookupAccountName() is user, domain, type
    self.security_dict["Everyone"] = win32security.LookupAccountName("", "Everyone")
    self.security_dict["Administrators"] = win32security.LookupAccountName("", "Administrators")
    self.security_dict["CurrentUser"] = win32security.LookupAccountName("", win32api.GetUserName())
    self.admins = self.security_dict["Administrators"][0]
    self.everyone = self.security_dict["Everyone"][0]
    self.user = self.security_dict["CurrentUser"][0]

  def SetPromiscuousFileAccess(self, file_path):
    print(file_path)
    con = ntsecuritycon
    sd = win32security.GetFileSecurity(file_path,win32security.DACL_SECURITY_INFORMATION)
    dacl = win32security.ACL()
    # con.FILE_GENERIC_READ
    # con.FILE_GENERIC_READ | con.FILE_GENERIC_WRITE,
    # con.FILE_ALL_ACCESS
    dacl.AddAccessAllowedAce(win32security.ACL_REVISION, con.FILE_ALL_ACCESS, self.everyone)
    dacl.AddAccessAllowedAce(win32security.ACL_REVISION, con.FILE_ALL_ACCESS, self.user)
    dacl.AddAccessAllowedAce(win32security.ACL_REVISION, con.FILE_ALL_ACCESS, self.admins)
    # Put our new DACL into the Security Descriptor,
    # update the file with the updated SD, and use
    # CACLS to show what's what.
    sd.SetSecurityDescriptorDacl(1, dacl, 0)
    win32security.SetFileSecurity(file_path, win32security.DACL_SECURITY_INFORMATION, sd)

  # Gets the attributes of the file by executing a shell command. Useful for testing
  # but it will have performance problems for large file sets.
  def GetCacls(self, file_path):
    out = []
    for line in os.popen("cacls %s" % file_path).read().splitlines():
      out.append(line)
    return out

permission change of files in python

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