Question 134377 in Visual Studio Code Question posted in
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Visual Studio Code – Why does the attached code below work on my Macbook's VS Code application but not on the VS Code app I run on the same device on Parallels Desktop?

fairly new to python and I’ve managed to iron out any wrinkles I’ve overcome before. However, I’m stuck when it comes to this. I need to run a script I’m writing on Parallels Desktop since I cannot use the MetaTrader 5 python library on my Macbook’s VS Code for an algo I’m writing.

The issue I’ve come across is that I need to run a certain section of the script once every 5th minute and so I am using the following code to trigger this.

import time

while True:
    if time.time() % (60 * 5) == 0:
        print(time.strftime('%H:%M:%S %Y-%m-%d', time.gmtime(time.time())))  #code

I want triggered follows…

The code works with no issues on my Mac’s VSCode but when I run it on Parallel’s Desktop VScode, there is no output. No error either.

Is there any reason for this and how might I overcome this?

Thank you guys it’s been eating at me for a while.

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2

Answers


  1. 0

    I see multiple sources why the code above code be problematic.
    If you take a look at:

    print(time.time())
#output
1677345971.6591382

    Everything behind the decimal separator . is a very small proportion of a second (unit microsecond and below).

    If you try time.time() % (60 * 5) == 0 the chance of hitting a time.time() that looks like 1677345971.00000000 is minimal since your code wont be triggered at that exact microsecond.

    But only in that case time.time() % (60 * 5) == 0 would be true since no microseconds are left in your modulus calculation.

    I don’t know why it works on your mac but i guess it is because your mac is not using float to show time.time().

    In your case you coult try to use the following code:

    if int(time.time()) % (60 * 5) == 0:

    This turns your time from 1677345971.6591382 into 1677345971 where the unit is seconds. Now your calculation int(time.time()) % (60 * 5) == 0 can be fulfilled not only by chance of leaving 0 microseconds behind.

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  2. 0

    I think @tetris programming said the right thing about some inevitable mistakes in your code. However, it will repeat print() many times in that second.

    I have provided the following code to help you better achieve your original purpose. Use the schedule package by command pip install schedule, which is a module for executing tasks on a regular basis.

    import schedule
import time

def run():
    print(time.strftime('%H:%M:%S %Y-%m-%d', time.gmtime(time.time())))  #code 

schedule.every(5).minutes.do(run)

while True:
    schedule.run_pending()
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