[Solved] How can you update the value of an existing cookie named session to xyz789 in Selenium Python? — Ans: Delete the cookie first, then add a new cookie with the same name and new value | Selenium Python

Selenium Python - Advanced Patterns

How can you update the value of an existing cookie named session to xyz789 in Selenium Python?

ADirectly assign driver.cookies['session'] = 'xyz789'

BUse driver.update_cookie({'name': 'session', 'value': 'xyz789'})

CDelete the cookie first, then add a new cookie with the same name and new value

DCall driver.add_cookie({'name': 'session', 'value': 'xyz789'}) without deleting

Step-by-Step Solution

Solution:

Step 1: Understand cookie update behavior
Selenium does not have an update method; to change a cookie value, you must delete and then add it again.
Step 2: Validate options
Delete the cookie first, then add a new cookie with the same name and new value correctly deletes the old cookie and adds a new one with updated value. Options B and C are invalid methods. Call driver.add_cookie({'name': 'session', 'value': 'xyz789'}) without deleting may cause duplicate cookies or undefined behavior.
Final Answer:
Delete the cookie first, then add a new cookie with the same name and new value -> Option C
Quick Check:
Update cookie by delete + add [OK]

Quick Trick: Update cookie by deleting then adding new one [OK]

Common Mistakes:

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How can you update the value of an existing cookie named session to xyz789 in Selenium Python?