AttributeError: 'datetime.datetime' object has no attribute 'timestamp'

[jikong93]

Things to check first

• I have checked that my issue does not already have a solution in the FAQ

• I have searched the existing issues and didn't find my bug already reported there

• I have checked that my bug is still present in the latest release

Version

APScheduler 3.9.1

What happened?

D:\software\Python27\python.exe D:/pySpace/aps_test.py
Traceback (most recent call last):
File "D:/pySpace/aps_test.py", line 19, in
myAPS.start()
File "D:\software\Python27\lib\site-packages\apscheduler\schedulers\background.py", line 35, in start
BaseScheduler.start(self, *args, **kwargs)
File "D:\software\Python27\lib\site-packages\apscheduler\schedulers\base.py", line 167, in start
self._real_add_job(job, jobstore_alias, replace_existing)
File "D:\software\Python27\lib\site-packages\apscheduler\schedulers\base.py", line 863, in _real_add_job
replacements['next_run_time'] = job.trigger.get_next_fire_time(None, now)
File "D:\software\Python27\lib\site-packages\apscheduler\triggers\interval.py", line 68, in get_next_fire_time
return normalize(next_fire_time)
File "D:\software\Python27\lib\site-packages\apscheduler\util.py", line 431, in normalize
return datetime.fromtimestamp(dt.timestamp(), dt.tzinfo)
AttributeError: 'datetime.datetime' object has no attribute 'timestamp'

How can we reproduce the bug?

# coding=utf-8
from apscheduler.schedulers.background import BackgroundScheduler
import pytz
import datetime
import time


def my_task():
    print("task executed")



myAPS = BackgroundScheduler()
# 第6个月的第9天的每小时第3分钟第30秒执行,同时指定时区
myAPS.add_job(func=my_task, trigger="interval", seconds=3)


try:
    myAPS.start()
    while True:
        time.sleep(1)
except KeyboardInterrupt:
    myAPS.shutdown()

pip list

Package Version

---

APScheduler 3.9.1
funcsigs 1.0.2
futures 3.3.0
pip 20.3.4
pytz 2022.2.1
setuptools 44.1.1
six 1.16.0
tzlocal 2.1

[agronholm]

This bug was introduced some time in the later releases, but since Python 2.7 reached its end of life almost 3 years ago, I decided not to spend a lot of time fixing it (my early attempts failed). If you are unable to switch to Python 3 for whatever reason, you need to downgrade your APScheduler to 3.8.1.

[jikong93]

get， thanks
It is recommended that you can modify the version requirements

[jmath222]

Please update the version requirements on PyPI so that 3.9.1 doesn't appear as compatible with Python 2.7

[agronholm]

I've made new post-releases for v3.9.0 and v3.9.1 (and yanked the originals).