Python
What does the function re.search do?

matches a pattern at any position in the string
matches a pattern at the start of the string
none of the mentioned
such a function does not exist

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Python
What is the use of duck typing?

Makes the program code smaller
More restriction on the type values that can be passed to a given method
Less restriction on the type values that can be passed to a given method
No restriction on the type values that can be passed to a given method

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