Commit 04517690 authored by Paul McCarthy's avatar Paul McCarthy 🚵
Browse files

Functions are introduced in first practical - turned introduction in file

management prac into a "refresher"
parent f56044ca
......@@ -346,9 +346,12 @@ def whatisit(path, existonly=False):
```
> This is the first time in this series of practicals that we have defined our
> own function, [hooray!](https://www.youtube.com/watch?v=zQiibNVIvK4) All
> function definitions in Python begin with the `def` keyword:
> This is the first time in a while that we have defined our own function,
> [hooray!](https://www.youtube.com/watch?v=zQiibNVIvK4). Here's a quick
> refresher on how to write functions in Python, in case you have forgotten.
>
> First of all, all function definitions in Python begin with the `def`
> keyword:
>
> ```
> def myfunction():
......@@ -424,10 +427,10 @@ print('Directory and base names: {}'.format(op.split( path)))
```
> Note here that `op.split` returns both the directory and base names - it is
> super easy to define a Python function that returns multiple values, simply by
> having it return a tuple. For example, the implementation of `op.split` might
> look something like this:
> Note here that `op.split` returns both the directory and base names - remember
> that it is super easy to define a Python function that returns multiple values,
> simply by having it return a tuple. For example, the implementation of
> `op.split` might look something like this:
>
>
> ```
......
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