Am I able to write to a file using a user defined function?

Am I able to write to a file using a user defined function?

def writetofile():
myFile = open("C:\Jazmyn\myText.txt", "a")
myFile.write(a)
myFile.close()
creating new text file, I have created a folder named "Jazmyn" in my C
drive and the text file is created there.
def greenbottles():
bottle =
['Zero','One','Two','Three','Four','Five','Six','Seven','Eight',
'Nine', 'Ten' ]
text_one = 'green bottles hanging on the wall'
text_two = 'And if one green bottle should accidentally fall\nThere\'ll be'
for i in range(10, 0, -1):
print(bottle[i], text_one)
print(bottle[i], text_one)
print(text_two, bottle[i-1], text_one)
greenbottles()
this needs to be written to the file
I am new to python and I am finding it difficult. It is possible to make
it so that the greenbottles code can be written to the new text file
(myText) or can i fix the print statement so they write to the file?