Question

I am using subprocess to run a command (from a spawned daemon) and trying to write results to a file. The resulting string from Popen is bytestring. How do I format this into something human readable before writing to a file? using python3.2

have tried:

print (x,file=o)
f.write(str(rc.so))
print (str(rc.so) + "\n")

Nothing ends up looking readable ..

suspect code:

  rc = subprocess.Popen([cmd], shell=True, stdout=subprocess.PIPE,   stderr=subprocess.PIPE)
  x = rc.stdout.readlines()
  rc.so, rc.se = rc.communicate()
  with open(of,'w') as o, open(ef,'w') as e:
     print (str(rc.so) + "\n",file=o)

Answer 1

you need to decode it:

my_byte_string.decode('utf-8')

utf-8 might not be the best choice of decoding for your situation, it is one of a number of options available.

so that print statement should be more like:

print (rc.so.decode('utf-8') + "\n",file=o)