problem running "command -v dnf" in python

I'm trying to run this code:

import subprocess
def install_curl():
    result = subprocess.check_output(['command', '-v', 'dnf']) # 
    if not result:
        print("You should Install curl")
    else:
        result = subprocess.check_output(['command', '-v', 'apt'])
        print(result)
install_curl()

Then I'm getting this error:

Traceback (most recent call last):
  File "/home/pbravodez1/projects/Automate_task/test_gpg.py", line 98, in <module>
    install_curl()
  File "/home/pbravodez1/projects/Automate_task/test_gpg.py", line 91, in install_curl
    result = subprocess.check_output(['command', '-v', 'dnf']) # 
  File "/usr/lib/python3.8/subprocess.py", line 411, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "/usr/lib/python3.8/subprocess.py", line 489, in run
    with Popen(*popenargs, **kwargs) as process:
  File "/usr/lib/python3.8/subprocess.py", line 854, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.8/subprocess.py", line 1702, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'command'

Do you have any idea on how to run this "command" in order to check which package manager is installed in the Operating System?