IRC bot written in Python - join channel function

[metulburr]

replace bytes with str.encode

def joinchan(channel):
  ircsock.send(str.encode("JOIN "+ channel + "\n"))
  
def join():
  ircsock.send(str.encode("JOIN %s"))

It would also be better to replace all your string concatenations with format method such as

def joinchan(channel):
  ircsock.send(str.encode("JOIN {}\n".format(channel)))