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Update page 'Day 9 homework - Sloetjes'

xuanyi.wang
2023-04-19 04:52:46 +02:00
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Day 9 homework - Sloetjes.md
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@@ -60,4 +60,14 @@ print(get_all_modules_size())
**6. Import the os module. What happens when you type `type(os)`?**
##### Answer:
The `type()` function returns the type of the `os` module, which is a module object.
* The `type()` function returns the type of the `os` module, which is a module object.
**7. Restart the Python interpreter. Can you figure out how to call `os.getlogin()` without saying `import os`?**
```
login = __import__('os').getlogin()
print(login)
```
8. If you can, explain why this works and quote the relevant sections of section 5 in the language reference.
##### Answer:
* According to the Python language reference documentation on Importing Modules (section 5.6), the __import__() function is a low-level interface for dynamically importing modules at runtime. The documentation states that:
* When the name variable is of the form package.module, normally, the top-level package (the name up till the first dot) is returned, not the module named by name. However, when a non-empty fromlist argument is given, the module named by name is returned.