Jupyter Notebook (or Colab, databrisk’s notebook etc) provide a very efficient way for building a project in a short time. We can create any python class and function in the notebook without re-launching kernel.

Helping to shorten the waiting time for that. It is good for small scale project and experiment. However, it may not good for long term growth. After reading this article, you will understand: When do we need to have a well-defined project folder structure? Modularization. Recommendation. When do we need to have a well-defined project folder structure. Intuitively, velocity is the major consideration when we are doing Proof of Concept (PoC).

Source: towardsdatascience.com
Author: Edward Ma