Explanation about the code and the wire in depth

#$!/$usr$/$bin$/$env python

import...

LedPin $=17$

# pin$17$

LedPin$2=19$

ButtonPin $=18$

GPIO.setwarnings$($False$)$

GPIO.setmode$($GPIO$.$BCM$)$ # Numbers GPIOs by standard marking

GPIO.setup$($LedPin$,$ GPIO.OUT$)$ # Set LedPin's mode is output

GPIO.output$($LedPin$,$ GPIO.HIGH$)$ # Set LedPin high$(+3\mathrm{.}3$V$)$ to turn off led

GPIO.setup$($LedPin$2,$ GPIO.OUT$)$ # Set LedPin's mode is output

GPIO.output$($LedPin$2,$ GPIO.HIGH$)$ # Set LedPin high$(+3\mathrm{.}3$V$)$ to turn off led

# Set ButtonPin's mode as input with the internal pullup

GPIO.setup$($ButtonPin$,$

GPIO.IN$,$ pull$\_$up$\_$down $m_m$ GPIO.PUD$\_$UP$)$

while True:

$)==($ GPIO. input$(ButtonPin)$

GPIO.output$($LedPin$,$ GPIO.LOW$)$ # led on

GPIO.output$($LedPin$2,$ GPIO.HIGH$)$ # led on

else:

print $(\text{'}...$ led off'$)$

GPIO.output$($LedPin$,$ GPIO.HIGH$)\_$# led off

GPI$0.$output$($LedPin$2,$ GPIO.LOW$)$ # led on