How would I establish a serial connection with python without using the serial monitor? [duplicate]

This question is about Python not Arduino... Before asking here please ask GOOGLE

Anyway...

This is the answer Arduino and Python

Python code:

## import the serial library
import serial

## Boolean variable that will represent 
## whether or not the arduino is connected
connected = False

## open the serial port that your ardiono 
## is connected to.
ser = serial.Serial("COM11", 9600)

## loop until the arduino tells us it is ready
while not connected:
    serin = ser.read()
    connected = True

## Tell the arduino to blink!
ser.write("1")

## Wait until the arduino tells us it 
## is finished blinking
while ser.read() == '1':
    ser.read()

## close the port and end the program
ser.close()

Arduino code:

// Open a serial connection and flash LED when input is received

void setup(){
  // Open serial connection.
  Serial.begin(9600);
  pinMode(13, OUTPUT);
  Serial.write('1'); 
}

void loop(){ 
  if(Serial.available() > 0){      // if data present, blink
    digitalWrite(13, HIGH);
    delay(500);            
    digitalWrite(13, LOW);
    delay(500); 
    digitalWrite(13, HIGH);
    delay(500);            
    digitalWrite(13, LOW);
    Serial.write('0');
  }
}