How do you fix it

[jigsaw678]

Do you want to compile into an executable? (y/n): y
Traceback (most recent call last):
File "/home/odin/DSC2/DSC2.py", line 146, in
subprocess.run(["pyinstaller", "--onefile", "--noconsole", "--distpath=output", "--icon=./wew.ico", "client.py"])
File "/usr/lib/python3.11/subprocess.py", line 548, in run
with Popen(*popenargs, **kwargs) as process:
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/subprocess.py", line 1026, in init
self._execute_child(args, executable, preexec_fn, close_fds,
File "/usr/lib/python3.11/subprocess.py", line 1950, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'pyinstaller'