Orange pi lite 2 pins circuit

2kx

hi, i'm begginer in orange and i try to circuit 2 pins and check signal on end(1 or 0)I use orange pi lite, armbian, and orangepi_PC_gpio_pyH3, here code

1. #!/usr/bin/env python
   
2. from pyA20.gpio import gpio
   
3. from pyA20.gpio import port
   
4. from time import sleep
   
5. 
   
6. print 'init gpio'
   
7. gpio.init()
   
8. 
   
9. #pin_out = port.PA10
   
10. pin_in = port.PA11
    
11. 
    
12. #gpio.setcfg(pin_out, gpio.OUTPUT)
    
13. #gpio.setcfg(pin_in, gpio.OUTPUT)
    
14. gpio.setcfg(pin_in, gpio.INPUT)
    
15. #sleep(0.1)
    
16. 
    
17. #gpio.pullup(pin_in, gpio.PULLDOWN)
    
18. gpio.pullup(pin_in, gpio.PULLUP)
    
19. #sleep(0.1)
    
20. 
    
21. #gpio.output(pin_out, gpio.HIGH)
    
22. print 'output high on pin %s' % str(pin_in)
    
23. try:
    
24.     while True:
    
25.         state = gpio.input(pin_in)
    
26.         print str(state)
    
27.         #sleep(0.5)
    
28.         if  state == 0:
    
29.             exit(0)
    
30. except KeyboardInterrupt:
    
31.     #gpio.output(pin_out, gpio.LOW)
    
32.     print '\n exit'
    

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i tried a lot of variants and its not working. i connect one end of wire to +3.3 and second end to p11.
In future it will be button counter. But now it simple task stunned me. Please help me)