1.
Virtual Tourism in COVID
Times 😷
Nithish Raghunandanan
@nithishr

2.
About Me
● Developer Advocate 🥑
● Like to Prototype 🛠
● Build in
● Organize PyData Munich
● Love to Travel ✈
● Find me @nithishr

3.
Like to

4.
2020

5.
Can you Visualize your Google Location History?

6.
Can you Visualize your Google Location History?

7.
Google Location Data
● Standardize
○ Timestamp in milliseconds
■ Convert to timestamp using
pd.to_datetime()
○ Latitude & Longitudes
■ Divide by 10^7

8.
How to Visualize?

9.
Visualizing Data
● Notebooks
● Presentations
● Scripts
● Code
● Reports in Tableau
● Web Apps?

10.
Jupyter Notebooks
● Great for Experimentation
● Graphs & Visualizations
● Storytelling using Data
● Customize with Code
● “I don’t like notebooks” - Joel Grus

11.
Web Apps: Wild West of Javascript
● Lots of Frameworks /
Libraries
● Paradox of Choice

12.
Streamlit
● Turn Data Scripts into Web
Apps
● Interactive
● No Frontend Experience
Required
● Easy to Deploy

13.
Streamlit
Compatibility with Major Frameworks / Libraries

14.
Visualize your Google Location Data
● Add Background Information
○ Images from
○ Random Images based on Location
● Histograms
● Heatmaps

15.
Visualize your Google Location Data

16.
Visualize your Google Location Data
Demo: https://youtu.be/ZFIviSlB4ZA

17.
Deployment
Private Server
● Config File
○ $CWD/.streamlit/config.toml
● Run
○ streamlit run script.py
Streamlit Sharing
● Public Github Repos for Free
● Premium Offering

18.
Streamlit Observations
Pros
● Make Python Code Interactive
● Customizable
● Deployment is easy
● Active Community
Cons
● No built in
Authentication
● Limited Design
flexibility
Good to have for Data Scientists

19.
Streamlit Alternatives
Pick your friend

20.
Improvements
● Map Locations to City /
Country
○ Reduce data?
● Improve Images
○ Connect to Google Photos
Data?

21.
Conclusion
● Great for Prototyping
● No need to worry about
Javascript
● Revisit past Travels

22.
References
● Code:
○ Travel Data Visualization
https://github.com/nithishr/streamlit-data-viz-demo
● Examples:
○ Streamlit Gallery
Nithish Raghunandanan
nithishr.com
@nithishr