Praveen Kumar

with open(str(filepath), 'r') as fp:
    lines = fp.readlines() 
    for line in lines:
        do_something(line)

将open函数的第二个参数作为字符串。

(或)

如果文件大小很大,可以使用这种方法

with open(str(filepath), 'r') as fp:
    line = fp.readline() 
    while line:
        do_something(line)
        line = fp.readline()