Run a program on a specific time using python

Question

I want to run a batch file(say wanted to run calculator) on a specific date and time using python (but don't use the default scheduler). My program:

a = "C:\Windows\system32\calc.exe"
mybat = open(r"D:\Cyber_security\Python\cal.bat", "w+")
mybat.write(a)
mybat.close()
import datetime
start = datetime.datetime.now()

end = datetime.datetime(2022, 7, 12, 17, 29, 10)
while(True):
    if(end - start == 0):
        import subprocess
        subprocess.call([r"D:\Cyber_security\Python\cal.bat"])

when I run it it doesn't show error but the batch file is not running at specific time. where is the wrong?

start is never updated. It'll always contain the time when you launched the script, so end - start will be a constant. — ForceBru
– ForceBru, Commented Jul 12, 2022 at 11:47
Then ForceBru is correct. 'start' is never updated. In addition, the way it is handled, the cpu clogging will be insane. I suggest adding a 'sleep(5)', then checking if 'end - start <= 0'. — Roey Michaeli
– Roey Michaeli, Commented Jul 12, 2022 at 11:53
Better yet, please view this question, for a better implementation. stackoverflow.com/questions/50121539/… — Roey Michaeli
– Roey Michaeli, Commented Jul 12, 2022 at 11:54

Devyl · Accepted Answer · 2022-07-12 11:47:51Z

2

Ever tried schedule package?

import schedule
import time

def job():
    print("I'm working...")

schedule.every(10).seconds.do(job)
schedule.every(10).minutes.do(job)
schedule.every().hour.do(job)
schedule.every().day.at("10:30").do(job)
schedule.every(5).to(10).minutes.do(job)
schedule.every().monday.do(job)
schedule.every().wednesday.at("13:15").do(job)
schedule.every().minute.at(":17").do(job)

while True:
    schedule.run_pending()
    time.sleep(1)

answered Jul 12, 2022 at 11:47

Devyl

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Comments

miksus · Accepted Answer · 2022-07-12 21:39:05Z

0

What about Rocketry?

from rocketry import Rocketry

app = Rocketry()

@app.task('every 1 hour')
def do_hourly():
    ...

@app.task('daily between 10:00 and 14:00 & time of week on Monday')
def do_once_a_day_on_monday():
    ...

@app.task("after task 'do_hourly'")
def do_after_another():
    ...

if __name__ == "__main__":
    app.run()

It also has parametrization, parallelization and Pythonic conditions if you dislike the string-based condition language.

Documentation: https://rocketry.readthedocs.io/
Source code: https://github.com/Miksus/rocketry

answered Jul 12, 2022 at 21:39

miksus

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2 Comments

Hossein Gholami Over a year ago

Hello miksus, I've been using your app recently and it's flexibility really amazes me. What I'm trying to figure out now is to run a task at a specific time. Is it possible?

Hossein Gholami Over a year ago

actually my question is if daily runs the task every day? and is it possible to say start running a task at a specific time but with a defined interval??

ijahan · Accepted Answer · 2022-07-28 13:02:46Z

0

I already found my answer.

a = "C:\Windows\system32\calc.exe"
mybat = open(r"D:\Cyber_security\Python\cal.bat", "w+")
mybat.write(a)
mybat.close()
import sched
from datetime import datetime
import time
def action():
    import subprocess
    subprocess.call([r"D:\Cyber_security\Python\cal.bat"])
s = sched.scheduler(time.time, time.sleep)
e_x = s.enterabs(time.strptime('Tue Jul 12 19:57:17 2022'), 0, action)
s.run()

answered Jul 28, 2022 at 13:02

ijahan

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1 Comment

Community Over a year ago

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