python subprocess Permission denied Errno 13

我在Python中的子進程中拒絕了Errno 13權限

問題所在是

ret=subprocess.call(shlex.split(cmd))

cmd = /usr/share/java -cp pig-hadoop-conf-Simpsons:lib/pig-0.8.1-cdh3u1-core.jar:lib/hadoop-core-0.20.2-cdh3u1.jar org.apache.pig.Main -param func=cat -param from =foo.txt -x mapreduce fsFunc.pig 

錯誤是。

File "./run_pig.py", line 157, in process
    ret=subprocess.call(shlex.split(cmd))
File "/usr/lib/python2.7/subprocess.py", line 493, in call
  return Popen(*popenargs, **kwargs).wait()
File "/usr/lib/python2.7/subprocess.py", line 679, in __init__
  errread, errwrite)
File "/usr/lib/python2.7/subprocess.py", line 1249, in _execute_child
  raise child_exception
OSError: [Errno 13] Permission denied

該錯誤表明/usr/share/java沒有權限允許您執行它，這可能是因爲它是目錄而不是可執行文件。

解決辦法：找到該文件，將其屬性變爲可執行即可。例如下面的文件，選中執行中的允許作爲程序執行文件。