f-string python invalid sysntax -


i trying learn code in python , have 0 knowledge in programming languages our there , encounter problem in it, in trying use f-string function.

my python version 3.6.2

and here's code trying run

greeting = 'hello' name = 'john'  message = f'{greeting} {name}. welcome!' print(message)

and here's error shows me.

file "/users/rq/desktop/intro.py", line 16   message = f'{greeting} {name}. welcome!'                                          ^ syntaxerror: invalid syntax [finished in 0.0s exit code 1]

i using mac 10.12.6 os version

i removed default python 2.7 version in it.

what should fix it?

here answer this

greeting = 'hello' name = 'john' message = '{} {} welcome'.format(greeting,name) print (message)

or 

message = greeting + " " + name + " " + "welcome" print (message)

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