How to check if a process with Command line argument is running using python
Question:
I would like to check if a script is running with a specific command line argument within a python script.
For example I would like to check if:
main.py testarg
Is running. Is there any way I can achieve this?
Thanks in advance
Answers:
To search through the currently running processes, you should use a library such as psutil
to ensure maximum platform compatibility.
import psutil
for process in psutil.process_iter():
cmdline = process.cmdline()
if "main.py" in cmdline and "testarg" in cmdline:
# do something
If instead you are looking to search through the arguments of the current process you can use the sys.argv
list:
import sys
if "testarg" in sys.argv:
# do something
For more complex argument parsing, it is recommended to use argparse
.
You can use the psutil
library.
import psutil
process_is_running = False
for process in psutil.process_iter():
if process.cmdline == what_you_want:
process_is_running = True
This will work on almost any OS and with python 2.4 up to 3.3.
Here is my take of it:
import psutil
L=[(p.name(),p.cmdline()[1]) for p in psutil.process_iter() if p.name().startswith('py')]
Now if you print this list L out:
('py.exe', 'programs\pad29.py')
('python.exe', 'programs\pad29.py')
('python.exe', '-u')
....
('python.exe', 'programs\test_signal.py')
The list contains the command line parameters of every running process whose name starts with ‘py’. That would include python.exe and py.exe. The condition is necessary otherwise you may run into some AccessDenied error if you try to poke on every running Windows process, like some smss.exe.
Once you have this list, finding out what you want is a no brainer:
t=['what_you_want' == m[1] for m in L]
answer=True in t
This helped me when I wanted to match specific process with specific arguments :
import psutil
for proc in psutil.process_iter():
if ( proc.name().startswith('ruby')) and ("service-buffer.rb" in proc.cmdline()[1]) :
print("match", proc.cmdline()[1])
import psutil
for p in psutil.process_iter():
try: # else get PermissionError
pid = p.pid
cmdline = p.cmdline()
print(pid)
for cmd in cmdline:
print(cmd)
print()
except:
pass
I would like to check if a script is running with a specific command line argument within a python script.
For example I would like to check if:
main.py testarg
Is running. Is there any way I can achieve this?
Thanks in advance
To search through the currently running processes, you should use a library such as psutil
to ensure maximum platform compatibility.
import psutil
for process in psutil.process_iter():
cmdline = process.cmdline()
if "main.py" in cmdline and "testarg" in cmdline:
# do something
If instead you are looking to search through the arguments of the current process you can use the sys.argv
list:
import sys
if "testarg" in sys.argv:
# do something
For more complex argument parsing, it is recommended to use argparse
.
You can use the psutil
library.
import psutil
process_is_running = False
for process in psutil.process_iter():
if process.cmdline == what_you_want:
process_is_running = True
This will work on almost any OS and with python 2.4 up to 3.3.
Here is my take of it:
import psutil
L=[(p.name(),p.cmdline()[1]) for p in psutil.process_iter() if p.name().startswith('py')]
Now if you print this list L out:
('py.exe', 'programs\pad29.py')
('python.exe', 'programs\pad29.py')
('python.exe', '-u')
....
('python.exe', 'programs\test_signal.py')
The list contains the command line parameters of every running process whose name starts with ‘py’. That would include python.exe and py.exe. The condition is necessary otherwise you may run into some AccessDenied error if you try to poke on every running Windows process, like some smss.exe.
Once you have this list, finding out what you want is a no brainer:
t=['what_you_want' == m[1] for m in L]
answer=True in t
This helped me when I wanted to match specific process with specific arguments :
import psutil
for proc in psutil.process_iter():
if ( proc.name().startswith('ruby')) and ("service-buffer.rb" in proc.cmdline()[1]) :
print("match", proc.cmdline()[1])
import psutil
for p in psutil.process_iter():
try: # else get PermissionError
pid = p.pid
cmdline = p.cmdline()
print(pid)
for cmd in cmdline:
print(cmd)
print()
except:
pass