Python：为什么导入时间不适用于time（）但适用于time.sleep（）？

Question

If I use from time import time , the Python 2.7.3 does not recognize time.sleep(60) . But if I use import time , then Python does not recognize t=time() . Why does this happen? Is there any way I can use time() and time.sleep(x) in the same program?

from time import time
#import time

intervalInMinute = 1
t = time()
while 1:
    time.sleep(60)

The kind of error I get is:

Traceback (most recent call last): File "myProg.py", line 9, in time.sleep(60) AttributeError: 'builtin_function_or_method' object has no attribute 'sleep'

Answer 1

You need to decide what you want the name time to refer to, the module or the function called time in the module. You can write:

>>> from time import time, sleep
>>> time()
1347806075.148084
>>> sleep(3)
>>>

or

>>> import time 
>>> time.time()
1347806085.739065
>>> time.sleep(2)
>>>

Answer 2

from time import time imports the method time() from the module time . import time , on the other hand, imports the module time . import time and use time.time() instead of time() .