can someone show me how I can add conditons to my code to if file does not exits, it cannot go further however if file exits then they add can? This is what I have so far?
def students():
enter = input("Enter text file: ")
print ("File found")
f=open(enter,'a+')
t=' '.join(f)
Username = input("Enter Username: ")
f.write(Username+",")
password = input("Enter password:")
f.write(password)
f.write(t)
f.write('\n')
f.close()
