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# Invoke the windows program with the python subprocess module's Popen() method. # Print out the command line arguments list elements. # Add the above windows executable file path to the command line arguments list.Ĭmd_param_arrray.append(cmd_executeable_file_path)
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# Get the windows executable file ( notepad.exe ) path.Ĭmd_executeable_file_path = os.path.join(win_dir_path, 'notepad.exe') Win_dir_path = os.environ + "\\System32\\" # Create the windows executable file command line arguments array. # This function will call the python subprocess module's Popen method to invoke a system executable program. I use the python subprocess module’s Popen function to execute a windows executable program like below, and it throws the FileNotFoundError.2.1 The FileNotFoundError: Occurred When Use Python Subprocess Module’s Popen() Method. The subprocess module’s run method returns an instance of the subprocess.CompletedProcess class, this object records the completed process status data (ie: executed command, return code, etc.) 2.> ret = n(, shell=True)ĬompletedProcess(args=, returncode=0) After I add the shell=True argument in the subprocess module’s run method, it runs successfully like below.This error is because I run the above command in a window shell, but do not specify the shell=True argument in the subprocess module’s run method.With Popen(*popenargs, **kwargs) as process:įile "C:\Users\zhaosong\anaconda3\envs\env_python_37\lib\subprocess.py", line 800, in _init_įile "C:\Users\zhaosong\anaconda3\envs\env_python_37\lib\subprocess.py", line 1207, in _execute_childįileNotFoundError: The system cannot find the file specified
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> import subprocessįile "C:\Users\zhaosong\anaconda3\envs\env_python_37\lib\subprocess.py", line 488, in run