How to detect if a variable has changed in python with selenium?

Question

I have built a python script with selenium that checks a certain website for a number. Whenever I run the script it returns the updated number from that website and puts it in a variable. But how can I detect when the variables value has changed and how to print something when it has changed?

Create a prev variable and compare it with current number returned. — Raunak Jalan
– Raunak Jalan, Commented May 15, 2021 at 18:32

Paul · Accepted Answer · 2021-05-15 18:24:29Z

0

Could have another variable like prevVar and do something along the lines of

prevVar = 0
watchVar = 0

while True:
    # Do stuff that updates watchVar
    if prevVar != watchVar:
        print("Value has updated to something different")
        # Update prevVar to the new watchVar
        prevVar = watchVar

Just using a second variable to track the previous variable's value.

Edit: This is also based on the assumption you mean a local value and not the variable from the site being checked with selenium.

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answered May 15, 2021 at 18:24

Paul

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1 Comment

Simon Over a year ago

Thank you so much! I'm still a beginner so I have a lot to learn...

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