explain InteractiveSheet

Author: afeld

assignments/open_ended.md

@@ -65,7 +65,9 @@ Probably not realistic to make visualizations that are as fancy as these ones ma
 
 ## Storing data
 
-To work with uploaded files in Google Colab, you have two options.
+<!-- https://github.com/googlecolab/colabtools/issues/5663 -->
+
+To work with uploaded files in Google Colab, you have [a lot of options](https://colab.research.google.com/notebooks/io.ipynb). A few recommended options:
 
 ### Direct upload
 
@@ -76,25 +78,45 @@ _Fewer steps, but your file(s) will disappear when your session ends._
 1. In the Google Colab sidebar, click the `Files` icon (A).
 1. Click the upload button (B).
 1. Select your file.
-1. You'll use `read_csv("MY_FILENAME.csv")` in your code.
+1. [Read the file in Python.](#reading-files-in-python)
 
 ### Google Drive
 
 _More steps, but your file(s) are preserved between sessions._
 
+Expands on the [instructions to mount Google Drive locally](https://colab.research.google.com/notebooks/io.ipynb#scrollTo=u22w3BFiOveA).
+
 ![Steps to get data into Google Colab via Drive](../extras/img/colab_upload_drive.png)
 
 1. Upload the file(s) somewhere in [Drive](https://drive.google.com/drive/my-drive).
 1. In the Google Colab sidebar, click the `Files` icon (A).
 1. Click the `Mount Drive` icon (B).
    - You may need to run the code it injects to authorize it (C).
    - Think of this as attaching your Drive to your Google Colab instance, as if you were plugging in a USB flash drive.
+1. [Read the file in Python.](#reading-files-in-python)
+
+### [InteractiveSheet](https://colab.research.google.com/notebooks/io.ipynb#scrollTo=BC_eQdDHyCji)
+
+You can [import your data into a Google Sheet](https://www.youtube.com/watch?v=C3ic0jqAWJY) and read it directly from Colab.
+
+```python
+from google.colab import sheets
+
+sheet_url = "…"
+sheet = sheets.InteractiveSheet(url=sheet_url, include_column_headers=True)
+df = sheet.as_df()
+```
+
+<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/D5MUsMim_is?start=242" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+
+### Reading files in Python
+
 1. Navigate to the file (D).
    - You may need to click into `content`, then `drive`.
 1. Next to the filename, click the three dots.
 1. Click `Copy path` (E).
    - The value should be something like `/content/drive/My Drive/...`.
-1. Use this path with `read_csv()` (F).
+1. Use this path with [`read_csv()`](https://pandas.pydata.org/docs/user_guide/io.html#csv-text-files) (F).
 
 Google Colab cannot access the file on your local machine; in other words, the path shouldn't start with `C:\\` or anything like that. [More info about file paths.](https://www.codecademy.com/resources/docs/general/file-paths)