Python修改文件权限

os.chmod()方法 此方法通过数值模式更新路径或文件权限。该模式可采取下列值或按位或运算组合之一：

• stat.S_ISUID: Set user ID on execution.
• stat.S_ISGID: Set group ID on execution.
• stat.S_ENFMT: Record locking enforced.
• stat.S_ISVTX: Save text image after execution.
• stat.S_IREAD: Read by owner.
• stat.S_IWRITE: Write by owner.
• stat.S_IEXEC: Execute by owner.
• stat.S_IRWXU: Read, write, and execute by owner.
• stat.S_IRUSR: Read by owner.
• stat.S_IWUSR: Write by owner.
• stat.S_IXUSR: Execute by owner.
• stat.S_IRWXG: Read, write, and execute by group.
• stat.S_IRGRP: Read by group.
• stat.S_IWGRP: Write by group.
• stat.S_IXGRP: Execute by group.
• stat.S_IRWXO: Read, write, and execute by others.
• stat.S_IROTH: Read by others.
• stat.S_IWOTH: Write by others.
• stat.S_IXOTH: Execute by others.

语法：

os.chmod(path, mode);

参数：

• path: This is the path for which mode would be set.
• mode: This may take one of the above mentioned values or bitwise ORed combinations of them:

示例：

[python] view plain copy

 
#!/usr/bin/python  
import os, sys, stat  
# Assuming /tmp/foo.txt exists, Set a file execute by the group.  
os.chmod("/tmp/foo.txt", stat.S_IXGRP)  
# Set a file write by others.  
os.chmod("/tmp/foo.txt", stat.S_IWOTH)  
print "Changed mode successfully!!"  
This produces following result:  
Changed mode successfully!!  
os.chmod("/tmp/foo.txt", stat.S_IRWXU|stat.S_IRWXG|stat.S_IRWXO) # mode:777