Python3 SyntaxError: unexpected EOF while parsing

使用python3做练习，用eval语句将文本数据转化为列表时，报错SyntaxError: unexpected EOF while parsing 具体代码如下

datals= [ ]
f= open("data.txt",encoding='utf-8')
for line in f :
    line = line.replace("\n","")
    datals.append(list(map(eval,line.split(","))))
f.close()

修改代码,加入if判断

datals= [ ]
f= open("data.txt",encoding='utf-8')
for line in f :
    line = line.replace("\n","")
    if line!="":    # eval内参数为空时报错，需要加入if判断
        datals.append(list(map(eval,line.split(","))))
f.close()

运行后读出数据并没有报错

data.txt如下