合并文件将生成错误：SyntaxError:解析时出现意外的EOF

Question

我正在做一个练习，将三个文件合并成一个以当前日期为文件名的新文件；这是我得到的错误“SyntaxError:unexpected EOF while parsing”，请帮助。我的代码是：

file_name = datetime.datetime.now()

def createFile(lst):
    with open(file_name.strftime("%Y-%m-%d-%H-%M-%f")+".txt","w") as myFile:
        for i in lst:
            myFile.write(i+"\n")

file_list = ["file1.txt","file2.txt","file3.txt"]
lst = []

for j in file_list:
    with open(j,"r") as i:
        lst.append(i.readlines())

createFile(lst)

错误消息是：

File "exrFile.py", line 11
                                         ^
SyntaxError: unexpected EOF while parsing