Currently building Petrol-powered RC car controlled by a raspberry pi and 16ch adafruit servo controller Pi hat. Pretty novice query from a beginner but how can simple Python commands be carried out by a single key press. E.g. Holding the "w" key on a keyboard to run "pwm.setPWM(0, 0, servoMax)". (In order for the servo to push the throttle to move the vehicle forward). What follows is the code currently used:

```
#!/usr/bin/python

from Adafruit_PWM_Servo_Driver import PWM
import time

pwm = PWM(0x40)

servoMin = 150
servoMax = 600

def setServoPulse(channel, pulse):
 pulseLength = 1000000
 pulseLength /= 60
 print "%d us per period" % pulseLength
 pulseLength /= 4096
 print "%d us per bit" % pulseLength
 pulse *= 1000
 pulse /= pulseLength
 pwm.setPWM(channel, 0, pulse)

pwm.setPWMFreq(60)
While (True): 
 pwm.setPWM(0, 0, servoMin)   #throttle servo set to off position -should be default 
 pwm.setPWM(0, 0, servoMAX)   #throttle servo set on -to be run by "W" key
 pwm.setPWM(1, 0, servoMin)   #steering servo left -by holding "A" key
 pwm.setPWM(1, 0, servoMax)   #steering servo right -by holding "D" key

```

I would assume the answer involves If and ElseIf commands, but I really would just like to run a program then input() keyboard presses to run the code.