5 Python Operations that Confuse Beginners

This article summarizes some highly similar Python operations that are easy to get mixed up with, especially for beginners.

Lambda Argument: Bounded during Definition vs Runtime
Random Selection with/without Replacement
Copy: Shallow vs Deep
Equivalence vs Equality
Searching for Substring

Example: Assign y with value 10 and define the functions:

Let’s then update the value of y , run the functions and see what happens.

Clearly y in func1 now takes the new value of 100 while func2 is still using y = 10 , any update of y after the function definition has no effect on the argument it uses.

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