Interacting with System-console from Python

Well I am happy to say that I figured it out! Here is the code for everyones benefit:

import subprocess
class altera_system_console:
    def __init__(self):
        sc_path = r'C:\altera_lite\15.1\quartus\sopc_builder\bin\system-console.exe --cli --disable_readline'
        self.console = subprocess.Popen(sc_path, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
    
    def read_output(self):
        rtn = ""
        loop = True
        i = 0
        match = '% '
        while loop:
            out = self.console.stdout.read1(1)
            if bytes(match,'utf-8') == out:
                i = i+1
                if i==len(match):
                    loop=False
            else:
                rtn = rtn + out.decode('utf-8')
        return rtn
    
    def cmd(self,cmd_string):
        self.console.stdin.write(bytes(cmd_string+'\n','utf-8'))
        self.console.stdin.flush()
c = altera_system_console()
print(c.read_output())
c.cmd('set jtag_master  0]')
print(c.read_output())
c.cmd('open_service master $jtag_master')
print(c.read_output())
c.cmd('master_write_8 $jtag_master 0x00 0xFF')
print(c.read_output())