f = open(r'/Users/Song/Desktop/test.txt', 'r+')
f.writelines("wawa")
f.close()

c95c0c8abb8c463ceea885c12a2b57bead014341
<mask token>

<mask token>
f.writelines('wawa')
f.close()

f = open('/Users/Song/Desktop/test.txt', 'r+')
f.writelines('wawa')
f.close()

f = open(r'/Users/Song/Desktop/test.txt', 'r+')
f.writelines("wawa")
f.close()
