Right way to write string into UTF-8 file?

[snippsat]

Python 3 has full Unicode support and has default encoding as UTf-8.
Always for file out and in use UTF-8,
do not encode decode anything if not necessary as for taking text(Unicode as default) out and in from Python 3.

s = 'Crème and Spicy jalapeño ☂'
with open('unicode.txt', 'w', encoding='utf-8') as f_out:
    f_out.write(s)

Output on disk.

Output:
Crème and Spicy jalapeño ☂

Read in:

with open('unicode.txt', encoding='utf-8') as f:
    print(f.read())

Output:
Crème and Spicy jalapeño ☂