---
id: practical-python-9.2
source_exercise_id: "9.2"
title: "Making an application directory"
section: "9.1 Packages"
source_path: "09_Packages/01_Packages.md"
source_repo: "https://github.com/dabeaz-course/practical-python"
source_commit: "93dca856b41c61a0a0f85ae334116e4c125629ea"
student_visible_solution: false
has_private_solution: false
skip: false
---

# Exercise 9.2: Making an application directory

> Source: Practical Python Programming, `09_Packages/01_Packages.md`.

### Exercise 9.2: Making an application directory

Putting all of your code into a "package" isn't often enough for an
application. Sometimes there are supporting files, documentation,
scripts, and other things.  These files need to exist OUTSIDE of the
`porty/` directory you made above.

Create a new directory called `porty-app`.  Move the `porty` directory
you created in Exercise 9.1 into that directory.  Copy the
`Data/portfolio.csv` and `Data/prices.csv` test files into this
directory.  Additionally create a `README.txt` file with some
information about yourself.  Your code should now be organized as
follows:

```
porty-app/
    portfolio.csv
    prices.csv
    README.txt
    porty/
        __init__.py
        fileparse.py
        follow.py
        pcost.py
        portfolio.py
        report.py
        stock.py
        tableformat.py
        ticker.py
        typedproperty.py
```

To run your code, you need to make sure you are working in the top-level `porty-app/`
directory.  For example, from the terminal:

```python
shell % cd porty-app
shell % python3
>>> import porty.report
>>>
```

Try running some of your prior scripts as a main program:

```python
shell % cd porty-app
shell % python3 -m porty.report portfolio.csv prices.csv txt
      Name     Shares      Price     Change
---------- ---------- ---------- ----------
        AA        100       9.22     -22.98
       IBM         50     106.28      15.18
       CAT        150      35.46     -47.98
      MSFT        200      20.89     -30.34
        GE         95      13.48     -26.89
      MSFT         50      20.89     -44.21
       IBM        100     106.28      35.84

shell %
```

## 关联来源

- [[summaries/01_Packages]]