KnowCardPython · Modules & Packages
Python splits modules into three kinds by where they live. What are they, and where is each stored?
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More in Modules & Packages
After import math, why does calling sin(math.pi) (without the math. prefix) raise NameError?
What does this print?
```
import math as m
print(m.sqrt(9))
print(math.sqrt(9))
```
What does this print?
```
pi = 1234
from math import *
print(pi)
```
When you do from somemod import *, which of a module's names are NOT imported by default?
Why is from os import * considered an anti-pattern even though it saves typing the os. prefix?
What does this print?
```
import mymod # prints "loading" on import
import mymod
import mymod
```
(mymod has a top-level `print("loading")`)
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