My understanding is the operation of the two are different:
Documentation -
Quote:
check_call() returns as soon as /bin/sh process exits, it does not wait for child processes to complete
check_output() waits until all output is read. When (and if) check_output inherits the stdin pipe then check_output() will wait until it exits, i.e., until the child process the inherited pipe. In other words it waits for the child process to end.
Hi,
I am having a trivial doubt. Please see the below pipeline code sequence.
command1 | (command 2; commend 3)
I am aware that the command that follows pipe will run in the sub shell by the Unix kernel. But how about here? Since these set of commands are grouped under "parantheses", will... (6 Replies)
I have a cron on a Linux server that isn't executing properly.
CRON (with specific info replaced):
MAILTO=emailaddress@server.com
*/2 * * * * python /data/site/cron.py
OUTPUT:
python: can't open file '/data/site/cron.py
': No such file or directoryAdditional info
- The python path is... (3 Replies)
Hi Guys,
Just a question about subprocesses.. Lately one of our servers has started to throw out the following error:
SYSTEM ERROR: Too many subprocesses, cannot fork. Errno=12
We've already increased the threshold twice. Its now up to 8000 and the swap space has also been increased. We... (6 Replies)
Hi,
I am trying to run a shell script using subprocess in python.
I can run simple script with arguments using subprocess.But I am not able to embed xterm in subrocess command.
#!/usr/bin/python
import subprocess
subprocess.call()
Above code gives me error.
Please help me in... (2 Replies)
Hi guys,
I'm learning python and perl and i was trying to run from python a perl script using the subprocess module.
I have an issue that i don't understand regarding this.
I run this code:
#!/usr/bin/python
import subprocess
p2 = subprocess.Popen(,stdout=subprocess.PIPE)
output2 =... (2 Replies)
Greetings!
I set up a basic threading specimen which does the job:#!/usr/bin/python
import threading
class a(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
def run(self):
print("thread a finished")
class b(threading.Thread):
... (0 Replies)
Hi Experts,
Good morning.
I am trying to convert my hello.py to hello .exe file.
I followed the steps as mentioned in the documentation but getting errors in the end. Please help.
What I did as below--
Created hello.py file
print ("Hello world!")
raw_input('')
Then... (0 Replies)
I have a string like below
Note: I have have a single to any number of comma "," seperated string assigned to jdbc_trgt variable.
I need to split jdbc_trgt using comma(,) as the delimiter.
I tried the below but it fails as i dont know how can i read each split string iterately.
for... (4 Replies)