Greetings!
I'm trying to use 'functions in my code.
I want to add a timestamp for each different operation my code executes.
I made a function and I thought each time I'll call it I'll get a different timestamp.
For some reason, it prints the same timestamp.
import time
def get_time():
import time
t_now = time.strftime("%Y-%m-%d %H:%M:%S")
t_now=str(t_now)
return t_now
print(t_now)
tst = get_time()
print (tst)
time.sleep(5)
print (tst)Thank you for your help!
There are multiple issues with your code.
On line #9
tst = get_time() you want to make
tst alias for
get_time (or at least that is what it seems you think). However what is actually going on you call
get_time and bind the value returned to name
tst. Now
tst value is
str. What you should do is
tst = get_time. In addition, even if you were successful in creating alias, you never call it, i.e. on line 11 and 13 you want
tst(), not just
tst. If creating alias is necessary is completely different matter - I don't see any benefit in it, just use/call
get_time when you need.
You import
time on line 1. No need to have second
import time inside the function.
time.strftime() will return
str, so line 6 is redundant.
The
return statement on line 7 will end the function execution and well, return the value
t_now. Line #8 will never be reached and executed.
import time
def get_time():
return time.strftime("%Y-%m-%d %H:%M:%S")
tst = get_time # I wouldn't do that, call get_time() when needed
print(tst())
time.sleep(5)
print(tst())
Thank you buran!
I do not know why I did not see it myself...
Thank you for the coaching!
Also a alternative advice can be to use logging,and then use
loguru
Then it can be done as simple as this
from loguru import logger
import time
logger.info('start')
time.sleep(5)
logger.info('stop')Output:
2021-10-16 16:50:13.532 | INFO | __main__:<module>:4 - start
2021-10-16 16:50:18.536 | INFO | __main__:<module>:6 - stop
So timestamp is there automatic.
It's also easy to add functionality.
from loguru import logger
import time
logger.remove() # Only info to file
logger.add("file.log", rotation="2 day")
logger.info('start')
@logger.catch
def foo():
time.sleep(5)
return 1 / 0
foo()
logger.info('stop')file.log:
Output:
2021-10-16 17:00:59.135 | INFO | __main__:<module>:6 - start
2021-10-16 17:01:04.142 | ERROR | __main__:<module>:12 - An error has been caught in function '<module>', process 'MainProcess' (23936), thread 'MainThread' (23940):
Traceback (most recent call last):
> File "G:\div_code\answer\log_time2.py", line 12, in <module>
foo()
-> <function foo at 0x00000288F302F790>
File "G:\div_code\answer\log_time2.py", line 10, in foo
return 1 / 0
ZeroDivisionError: division by zero
2021-10-16 17:01:04.147 | INFO | __main__:<module>:13 - stop
Tanks snippsat!
I have never about "oguru an dlogger", it might be very useful too..