streamlit-dash 0.6.1
🖼️ An image select component for Streamlit
License: MIT
Requires Python: >=3.8, !=2.7.*, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*, !=3.6.*, !=3.7.*

# streamlit-image-select 🖼️

[![PyPI](https://img.shields.io/pypi/v/streamlit-image-select)](https://pypi.org/project/streamlit-image-select/)

**An image select component for Streamlit.**

This custom component works just like `st.selectbox` but with images. It's a great option
if you want to let the user select an example image, e.g. for a computer vision app!

---

<h3 align="center">
  🏃 <a href="https://image-select.streamlitapp.com/">Try out the demo app</a> 🏃
</h3>

---

<p align="center">
    <a href="https://image-select.streamlitapp.com/"><img src="images/demo.gif" width=600></a>
</p>


## Installation

```bash
pip install streamlit-image-select
```

## Usage

```python
from streamlit_image_select import image_select
img = image_select("Label", ["image1.png", "image2.png", "image3.png"])
st.write(img)
```

See [the demo app](https://image-select.streamlitapp.com/) for a detailed guide!


## Development

> **Warning**
> You only need to run these steps if you want to change this component or 
contribute to its development!

### Setup

First, clone the repository:

```bash
git clone https://github.com/jrieke/streamlit-image-select.git
cd streamlit-image-select
```

Install the Python dependencies:

```bash
poetry install --dev
```

And install the frontend dependencies:

```bash
cd streamlit_image_select/frontend
npm install
```

### Making changes

To make changes, first go to `streamlit_image_select/__init__.py` and make sure the 
variable `_RELEASE` is set to `False`. This will make the component use the local 
version of the frontend code, and not the built project. 

Then, start one terminal and run:

```bash
cd streamlit_image_select/frontend
npm start
```

This starts the frontend code on port 3001.

Open another terminal and run:

```bash
cp demo/streamlit_app.py .
poetry shell
streamlit run streamlit_app.py
```

This copies the demo app to the root dir (so you have something to work with and see 
your changes!) and then starts it. Now you can make changes to the Python or Javascript 
code in `streamlit_image_select` and the demo app should update automatically!

If nothing updates, make sure the variable `_RELEASE` in `streamlit_image_select/__init__.py` is set to `False`. 


### Publishing on PyPI

Switch the variable `_RELEASE` in `streamlit_image_select/__init__.py` to `True`. 
Increment the version number in `pyproject.toml`. Make sure the copy of the demo app in 
the root dir is deleted or merged back into the demo app in `demo/streamlit_app.py`.

Build the frontend code with:

```bash
cd streamlit_image_select/frontend
npm run build
```

After this has finished, build and upload the package to PyPI:

```bash
cd ../..
poetry build
poetry publish
```

## Changelog

### 0.6.0 (March 28, 2023)
- Removed `st.experimental_memo`, which is deprecated. 
- Changed minimum version of Streamlit to 1.19.
  
### 0.5.1 (November 20, 2022)
- Hotfix, forgot to switch the RELEASE variable back to True :wink:

### 0.5.0 (November 20, 2022)
- Added `return_value` parameter to be able to get the index of the selected image.
- Improved error messages. 

### 0.4.0 (November 20, 2022)
- Added `index` parameter to set the initially selected image.
- Improved input arg checks. 

### 0.3.0 (November 13, 2022)
- Added `use_container_width` parameter to customize the width of the component. 
- Made `key` and `use_container_width` parameters keyword-only.
- Refactored CSS classes.