AttributeError: module 'PIL.TiffTags' has no attribute 'IFD'

[luanpbrasil]

Summary

Hi. I am trying to run the app in https://github.com/streamlit/demo-self-driving, an example for streamlit application in object detection.

However, when running the app, I got an AttributeError. I have not downloaded the repo. Although, I am lauching the app directly from the github repo.

Steps to reproduce

I have followed the instructions in the the README demo:

1. Run "pip install --upgrade streamlit opencv-python" on linux terminal.
2. Run "streamlit run https://raw.githubusercontent.com/streamlit/demo-self-driving/master/streamlit_app.py"
   * on the README, "streamlit_app.py" is actually just "app.py", but I changed it since the file name in the repo has changed to "streamlit_app.py"
3. Open "localhost:8501" in browser.
4. Select "Run the app" in the sidebar in the left.

Expected behavior:

It is expected that the app will run and display the images with the object detection. Instead, I am getting this error.

Actual behavior:

When I select the "Run the app" option in the left sidebar, I get the following error:

Debug info

• Streamlit version: 0.69.2
• Python version: 3.8.3
• Using Conda 4.9.0
• OS version: Ubuntu 20.04

I'll be thankful if anyone can help.