The Python subprocess module allows you to spawn new processes, connect to their input/output/error pipes, and obtain their return codes. Use it to run a shell command or an executable in Python.
The Python subprocess module allows you to spawn new processes, connect to their input/output/error pipes, and obtain their return codes.
If you want to run Python code in a separate process consider multiprocessing instead.
How do I retrieve the exit code when using Python's subprocess module and the communicate() method?
Relevant code:
import subprocess as sp
data = sp.Popen(openRTSP + opts.split(), stdout=sp.PIPE).communicate()[0]
Should I be doing this another way?
Is there a way to specify the running directory of command in Python's subprocess.Popen()?
For example:
Popen('c:\mytool\tool.exe', workingdir='d:\test\local')
My Python script is located in C:\programs\python
Is is possible to run…
I want to call an external program from Python. I have used both Popen() and call() to do that.
What's the difference between the two?
My specific goal is to run the following command from Python. I am not sure how redirects work.
./my_script.sh >…
From the examples in docs on subprocess.run() it seems like there shouldn't be any output from
subprocess.run(["ls", "-l"]) # doesn't capture output
However, when I try it in a python shell the listing gets printed. I wonder if this is the default…
I am trying to run a program to make some system calls inside Python code using subprocess.call() which throws the following error:
Traceback (most recent call last):
File "", line 1, in
File…
I am trying to write a wrapper script for a command line program (svnadmin verify) that will display a nice progress indicator for the operation. This requires me to be able to see each line of output from the wrapped program as soon as it is…
I want to execute a script inside a subdirectory/superdirectory (I need to be inside this sub/super-directory first). I can't get subprocess to enter my subdirectory:
tducin@localhost:~/Projekty/tests/ve$ python
Python 2.7.4 (default, Sep 26 2013,…
I need to run a shell command asynchronously from a Python script. By this I mean that I want my Python script to continue running while the external command goes off and does whatever it needs to do.
I read this post:
Calling an external command…
Since os.popen is being replaced by subprocess.popen, I was wondering how would I convert
os.popen('swfdump /tmp/filename.swf/ -d')
to subprocess.popen()
I tried:
subprocess.Popen("swfdump /tmp/filename.swf -d")
subprocess.Popen("swfdump %s -d" %…
subprocess.call(["/home/myuser/run.sh", "/tmp/ad_xml", "/tmp/video_xml"])
RIght now I have a script that I run. When I run it and it hits this line, it starts printing stuff because run.sh has prints in it.
How do I pipe this to a text file also?…
I've been trying to understand for a while now what's the difference between subprocess.call and subprocess.run. I know the last one is new on Python 3.5 and both are based on subprocess.Popen, but I'm not able to understand the difference yet.
What I do in the command line:
cat file1 file2 file3 > myfile
What I want to do with python:
import subprocess, shlex
my_cmd = 'cat file1 file2 file3 > myfile'
args = shlex.split(my_cmd)
subprocess.call(args) # spits the output in the window i call…
Can someone explain why the result I want, "hi", is preceded with a letter 'b' and followed with a newline?
I am using Python 3.3
>>> import subprocess
>>> print(subprocess.Popen("echo hi", shell=True,
…
I'm trying to do a Bitcoin payment from within Python. In bash I would normally do this:
bitcoin sendtoaddress
So for example:
bitcoin sendtoaddress 1HoCUcbK9RbVnuaGQwiyaJGGAG6xrTPC9y 1.4214
If it is successful I get a…
