Interview Q&A / Python

INTERVIEW Q&A · 81 QUESTIONS

Python interview questions

Lists, dictionaries, generators, decorators and the Python questions asked in service-company and data roles.

  1. What does this print: a list of lambdas created in a loop, each returning i?

    All the lambdas print the last value of i. Closures capture the variable, not its value at creation time, and i is looked up when the lambda is called. Fix it with a default argument: lambda i=i: i.

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