Few improvements to Logistics example

[nilsnolde]

1. No need for HD polygon here actually. You're not using it except for plotting. Think you can leave it out.
2. The first locations list:

• Only give the addresses and demands as assumption and use geocoding (the Pelias endpoint pls) to get the coordinates
• change the order to address, demand, long, lat

3. I generally like the approach with numpy and pandas, but try to keep your variables named, i.e. try to avoid to do e.g. route[:, ::-1].T. It's best done in dictionaries, I find, where you can put named keys. It makes it a lot nicer and easier to read.
4. reversed for an iterator is preferrable over [::-1]. Both for performance and readability.

Apart from that, very well done. I know, it can be hard, but try to think most practical with these examples, a fluid storytelling with just enough info to solve a certain problem in the most elegant and readable way.

[thegialeo]

Ok, i will work on those points this week, presumably on friday. Thanks for the feedback.

[thegialeo]

1. i removed the HD polygon

2. done

3. The problem is that the direction API return a 2d list: route = np.array(response['routes'][0]['geometry']), however PolyLine() requires a 1d list of tuples. the expression "list(zip(route[:, ::-1].T[0], route[:, ::-1].T[1]))" covert the 2d list reponse into a 1d list of tuples. numpy is the only way i know to do this in one line, if there is a better way of doing it, i am excited to hear. I now create an extra variable for it and added a comment on what it does to improve readablity (please look at the notebook and tell me if it fullfils what you wanted)
   I change routes from a 2d list to a dictionary of 1d lists. This only change the line points = locations[route] to points = locations[routes[route]]. Is this what you meant with "best done in dictionaries"?

4. i am not sure what to do here. Is their a specific code line, where you wish to have reserved() instead of [::-1], because I never iterate over a list backwards (with [::-1] or otherwise) in the notebook

If there are any other improvement that can be made, feel free to tell me.