This question already has answers here:
How do I execute a program or call a system command?
(65 answers)
Closed 7 years ago.
I am on a Raspberry Pi, and I am using a program called fswebcam, which allows you to take pictures with a webcam.
~$ fswebcam image.jpg
That command if entered in terminal takes a picture and saves it to your computer, however I want to build a simple python program that can access the terminal and execute that same command as I have listed above.
I have tried to import os and use os.system('fswebcam image.jpg') But it isn't working for me.
How can I have python execute terminal commands?
Use the subprocess module:
import subprocess
subprocess.Popen(["fswebcam", "image.jpg"])
Related
This question already has answers here:
Run a .bat file using python code
(9 answers)
Closed 2 years ago.
I have installed PyCharm to using Python language on Windows 10.
I'm trying to execute command from Linux command in PyCharm, I used this code:
import subprocess
subprocess.run("cat",shell=True,text=True)
But I get this error:
'cat' is not recognized as an internal or external command, operable program or batch file.
I want to execute several commands another such as this example, but all commands raise the same error. How to solve this?
Cat is a binary included in Unix systems, since windows isn't based on Unix, it wouldn't work. You should rather try the TYPE command in Windows
This question already has answers here:
Running windows shell commands with python
(7 answers)
Closed 4 years ago.
I want to open a cmd and then input data into the command line from python. I plan to call PEST calibration software to open from within python and I want to start by opening a cmd.
I am using Python 2.7 and so subprocess doesn't seem to work. I have tried os.system('cmd') and I can open the prompt but I can't input any data.
import os
os.system('cmd')
You should be able to pass the exact resulting string to os.system(). Ex:
os.system('notepad.exe')
In other words, os.system behaves the same way a console would.
This question already has answers here:
Interacting with program after execution
(3 answers)
Closed 7 years ago.
I want a script to run an then finish on the python shell with all variables and methods:
$ python myprogram.py
...
program output
...
>>>
And with #!/usr/bin/python is posible? so I double-click and it just works?
Sounds like you want Python's i flag. From the help menu:
-i : inspect interactively after running script; forces a prompt even
if stdin does not appear to be a terminal; also PYTHONINSPECT=x
So the full command would be
python -i yourscriptname.py
This question already has answers here:
How do I execute a program or call a system command?
(65 answers)
Running a linux command from python
(5 answers)
Closed 8 years ago.
how can I execute the following command in python please
sudo mount --bind /media/networkshare/camera /var/www/media
Technically you could use Python's subprocess module for this (see also this answer):
import subprocess
subprocess.check_call(['sudo', 'mount', '--bind', '/media/networkshare/camera',
'/var/www/media'])
Of course, this will still prompt you for your password. If you don't want it to prompt for a password, then you'll have to setup sudo so that it can execute a single command as root. See the following guide for how to do that:
https://askubuntu.com/questions/155791/how-do-i-sudo-a-command-in-a-script-without-being-asked-for-a-password
This question already has answers here:
How to read/process command line arguments?
(22 answers)
Closed 8 years ago.
I wrote a code using Python in Geany within windows and I'm using arguments in the code. I execute the program within the Geany so I don't know how to use arguments.
How could I convert the program to be be run as a standalone system, not to be run from within an IDE.
how could I use terminal in windows to run the code like this :
John~/home/args -> ./test.py -h
In Notepad, write what you would in terminal...
python test.py -h
Save it as a .bat file... Then you can run the bat file :)
PS. This goes for anything you wish to run in CMD