New submission from Andreas Sommer:
Reading over the section "Replacing os.system()" (https://docs.python.org/2/library/subprocess.html#replacing-os-system), one might assume that the return value of os.system and subprocess.call are equivalent.
status = os.system("mycmd" + " myarg") # becomes status = subprocess.call("mycmd" + " myarg", shell=True)
However, they are not. Example:
import sys import os import subprocess
print subprocess.call("false") print os.system("false")
gives 1 and 256, respectively. Maybe this could be rephrased for clarity, or a hint added.
---------- assignee: docs@python components: Documentation messages: 239028 nosy: Andreas Sommer, docs@python priority: normal severity: normal status: open title: Clarify difference between os.system/subprocess.call in section "Replacing os.system()" type: enhancement