cURL works through terminal but not in python

Question

I have two GoPro cameras that I can control through 10.5.5.9/x/x/x/ over WiFi - the thought process is that I can control both using two different network interfaces to connect to both cameras and then send a request to the URL (from earlier) and control both the cameras.

To test my theory I did the following commands in terminal:

curl --interface wlan0 http://10.5.5.9/gp/gpControl/command/shutter?p=1

curl --interface wlan1 http://10.5.5.9/gp/gpControl/command/shutter?p=1

Subsequently, this activates both cameras and they both begin recording. Great!

Putting this code into Python I tried the simple version of:

import os

resp = os.popen('curl --interface wlan0 http://10.5.5.9/gp/gpControl/command/shutter?p=1').read()
print(resp)
resp = os.popen('curl --interface wlan1 http://10.5.5.9/gp/gpControl/command/shutter?p=1').read()
print(resp)

But it only activates one camera and not the other, what is the reason behind this? I did the similar method using the answer to this question and it does the same, only activating one camera.

- Using python, the same camera is activated only once? Or twice? The reason to ask is to try to understand whether the --interface is being considered when passing the command to O.S. — silver
– silver, Commented Apr 6, 2020 at 20:11
- Consider using subprocess over os.popen (which is deprecated) docs.python.org/3.8/library/… — silver
– silver, Commented Apr 6, 2020 at 20:14
@silver It will send the command to one camera then try to send the same command to the same camera - which tells me it is not likely sending from a different interface. Same thing happens with the solution that I linked to. — Maxwell Newberry
– Maxwell Newberry, Commented Apr 6, 2020 at 20:24
Can you try to configure one of the wlans and the second camera in a different IP subnet? This would remove a handful of layers to look at. Which python version are you using? — silver
– silver, Commented Apr 6, 2020 at 20:40

silver · Accepted Answer · 2020-04-06 23:35:12Z

0

Try subprocess.run instead of os.popen:

import subprocess

resp = subprocess.run(["curl", "--interface", "wlan0", "http://10.5.5.9/gp/gpControl/command/shutter?p=1"], capture_output=True, shell=True)
print(resp)
resp = subprocess.run(["curl", "--interface", "wlan1", "http://10.5.5.9/gp/gpControl/command/shutter?p=1"], capture_output=True, shell=True)
print(resp)

answered Apr 6, 2020 at 23:35

silver

1265 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Charles Duffy Over a year ago

Check the comments -- this was one of the first changes suggested after the question was posted, and was reported to have no effect. (Also, the OP is on a version of Python old enough to not have run(), so it's necessary to operate on a Popen object explicitly).

Collectives™ on Stack Overflow

cURL works through terminal but not in python

1 Answer 1

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related