Question

I try to use Python envoy for better access to Shell programs. But i have a problem that i want to delete all items of a folder, but envoy can’t handle my varaible:

import envoy
import os

# Check for a empty folder. 
if len(os.listdir(csv_save_path)) != 0:
    for item in os.listdir(csv_save_path):
        result = envoy.run('rm -v',item)
        print result.std_out
        print result.std_err

Output:

"rm: missing operand\nTry `rm --help' for more information.\n"

I don’t want use subprocces. Anyone a idea what is wrong?

Edit:

Thank for your quick response. Now i get this error message:

    Exception in thread Thread-4:
Traceback (most recent call last):
  File "/usr/lib64/python2.7/threading.py", line 552, in __bootstrap_inner
    self.run()
  File "/usr/lib64/python2.7/threading.py", line 505, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib64/python2.7/site-packages/envoy/core.py", line 40, in target
    bufsize=0,
  File "/usr/lib64/python2.7/subprocess.py", line 679, in __init__
    errread, errwrite)
  File "/usr/lib64/python2.7/subprocess.py", line 1228, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

*** AttributeError: 'NoneType' object has no attribute 'returncode'

But i check on the path of the file, with and without path, it’s failing.

Edit: The Solution is to use %s to get the item to the right place.

import envoy
import os

# Check for a empty folder. 
if len(os.listdir(csv_save_path)) != 0:
    for item in os.listdir(csv_save_path):
        result = envoy.run('rm -v %s' % item)
        print result.std_out
        print result.std_err

so far

Answer 1

Try this

import envoy
import os

# Check for an empty folder. 
if len(os.listdir(csv_save_path)) != 0:
    for item in os.listdir(csv_save_path):
        result = envoy.run('rm -v %s' % item)
        print "Output: %s" % result.std_out
        print "Error: %s" % result.std_err