python 优雅读取大文件yield

代码如下：

def gen_file(filepath):

with open(filepath,'r+') as fp:

line = fp.readline()

while line:

yield line.strip()

line = fp.readline()

调用实例：

for line in gen_file(loginlog):

print (count)

if "Accepted" in line:

print (line.split(" "))

else:

print ("pass")