POC Modules, Libraries & Debugging 2

Question 1

Which statement correctly imports only the `sqrt` function from the `math` module?

Accepted Answer

from math import sqrt

Answer

The `from module import name` syntax imports a specific name directly into the current namespace.

Question 2

What does `sys.argv[0]` contain when running a Python script?

Accepted Answer

The name of the script file

Answer

`sys.argv[0]` always holds the script's filename (or an empty string in interactive mode).

Question 3

What is the purpose of the `__all__` list defined inside a module?

Accepted Answer

Controls what is exported when `from module import *` is used

Answer

`__all__` explicitly declares which names are exported during a wildcard import.

Question 4

Which built-in function returns a list of names defined in the current namespace or a given object?

Accepted Answer

dir()

Answer

`dir()` returns a sorted list of names in the current scope or the attributes of the passed object.

Question 5

In the `logging` module, which level is HIGHER in severity than WARNING?

Accepted Answer

ERROR

Answer

The logging severity order is DEBUG < INFO < WARNING < ERROR < CRITICAL.

(POC) Python Online Certification Practice Test