Q: Which Go version is recommended?
A: Pygolang does not depend on Go as it implements its runtime by itself.

Q: How to install?
A: pip install pygolang

Q: How to run a simple Hello World?
A: As Pygolang is just a Python library a "hello world" example is just print("hello world"). However below is "hello world" example that says "hello" and "world"  from two goroutines similarly to https://tour.golang.org/concurrency/1:

from golang import go
from golang import time

def say(s):
    for i in range(5):
        time.sleep(100 * time.millisecond)
        print(s)

def main():
    go(say, "world")
    say("hello")

if __name__ == '__main__':
    main()