字串切割 str.split()

data = """a,b,c
d,e,f
g,h,i
j,k,l"""

print(data.split())      
# ['a,b,c', 'd,e,f', 'g,h,i', 'j,k,l']
print(data.split("\n"))   # ['a,b,c', 'd,e,f', 'g,h,i', 'j,k,l']

跳行切割

data = """a,b,c
d,e,f
g,h,i
j,k,l"""

print(data.splitlines())