Unable to open image from gcp bucket

Using Streamlit
,
1

Hello streamlit people,

I am using a streamlit app to visualize the data in publications documents. I have data stored in bigquery table and images stored in gcp storage bucket. The data in the table shows perfectly normal. However, displaying images in the app is a challenge. The app is running locally.

After following the code here, I was able modify code as below:

conn = st.connection("gcs", type=FilesConnection)
image_file = 'gs://test-bucket/images/sample1.jpeg'
image = conn.open(image_file, format="image/jpeg", cache="0s").read()
st.image(image, use_column_width=True)

The problem is the code above displays images without any issue. However when I looked into the FilesConnection code the input_format ‘image/jpeg’ is not supported but this code is returning results. Also, the conn.open should be returning an Iterator[TextIOWrapper | AbstractBufferedFile].

Could someone please help resolve this issue to display the gcp images correctly? Or if there is a possibility to extend the FilesConnection class to accept image format.

2

If the code displays the images without any issues, what is the issue you want to resolve?

It displays the images without any issues but not correctly?

3

The problem is the code displays images however when I compile the code and run type checker(pyright), it gives an error:

error: Cannot access member "read" for type "Iterator[TextIOWrapper | AbstractBufferedFile]"
    Member "read" is unknown (reportGeneralTypeIssues)

Also, I want to understand how it could display images when the FilesConnection class doesn’t support images/jpeg input format?

4

That looks like a FilesConnection issue. The return value of FilesConnection.open is declared as Iterator, which doesn’t have a read method.

What makes you think that?

5

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