36 lines
2 KiB
Markdown
36 lines
2 KiB
Markdown
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## Exercise 2: Importing
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#### Goal
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Get comfortable with different ways of importing objects from a package.
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#### Preparation
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0. [if not done already] fork the repository
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https://github.com/ASPP/2023-heraklion-ODD
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and clone it to the laptop in a new directory
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1. You will be editing files within this directory
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2. Open a terminal and change to this directory, so that you can run the scripts that you are editing
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#### Tasks
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1. Work on the file `brewing/example_usage_within_package.py`:
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1. import and call the `make_example_potion` function from the module `brew_potions.py` function ➔ open a terminal, change to the `brewing` directory and run the script `example_usage_within_package.py`: what happens?
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2. change the import statement so that you can call the `make_example_potion` function like this: `br.make_example_potion` ➔ run the script again: what happens?
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2. Work on the file `example_usage_outside_package.py`, which is in the directory where you cloned the repo:
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1. import the brewing package inside the `example_usage_outside_package.py` that lives at the top level directory of the repo ➔ in the terminal, change to the top level directory of the repo, add the import statement and run the script `example_usage_outside_package.py`: what happens?
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2. import and call only the `make_example_potion` function from the module `brew_potions.py`, which is in the `brewing` directory ➔ run the script again: what happens?
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3. does it work? if yes, why? If no, why not?
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4. change the import statements so that it works, then check whether `brewing/example_usage_inside_package.py` from 1.2 still works.
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3. Work on the file `scripts_and_notebooks/example_usage_different_folder.py`:
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1. try to import and call only the `make_example_potion` function from the module `brew_potions.py` ➔ in the terminal, change to the `scripts_and_notebooks` directory and run the script `example_usage_different_folder.py`: what happens?
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2. does it work? if yes, why? If no, why not?
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