Exercise3.3
#remove extention files
st = 'abccd...sss'
ss = 'asdds.123'
for i in range(len(st)):
if '.'in st[i]:
print(st[:i])
INFO
#remove extention files
st = 'abccd...sss'
ss = 'asdds.123'
for i in range(len(st)):
if '.'in st[i]:
print(st[:i])