执行以下代码时,re.search报错。按理说我代码没啥问题,不知道怎么回事。求大神帮助!
hand=open("regex_sum_42.txt")
for line in hand:
line=line.rstrip()
if re.search("Why",line):
print(line)
执行结果:
Traceback (most recent call last):
File "task1.py", line 4, in
if re.search("Why",line):
NameError: name 're' is not defined