Colaboratory: Can I access to my Google drive folder and file?

To mount your Google drive to Colab:

from google.colab import drive
drive.mount('/content/drive')

and then to cd to any directory in the Google drive:

import os
os.chdir("drive/My Drive/<your-folder>")

and to list all items in the directory that Colab is working on (to make sure it's the right dir):

!ls

Here's an example of using a FUSE Drive interface to access your Drive files like local files: https://colab.research.google.com/notebook#fileId=1srw_HFWQ2SMgmWIawucXfusGzrj1_U0q

In short:

# Load the Drive helper and mount
from google.colab import drive
drive.mount('/content/drive')

After executing the code above, your Drive files will be present in /content/drive/My Drive.

I'm guessing you also found the bundled example I/O notebook, which shows how to use Python APIs to access files as well. (This requires a bit less configuration.) https://colab.research.google.com/notebook#fileId=/v2/external/notebooks/io.ipynb&scrollTo=c2W5A2px3doP