| Name | streamlit-pydantic-form JSON |
| Version |
0.0.4
JSON |
| download |
| home_page | |
| Summary | Streamlit form component defined by a Pydantic model |
| upload_time | 2024-01-18 12:28:43 |
| maintainer | |
| docs_url | None |
| author | Shunichiro Nomura |
| requires_python | >=3.11 |
| license | |
| keywords |
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| bugtrack_url |
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No requirements were recorded.
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# Streamlit Pydnatic Form
Streamlit form component defined by a Pydantic model.
## Installation
```bash
pip install streamlit-pydantic-form
```
## Usage
### Without `streamlit-pydantic-form`
```python
import streamlit as st
with st.form("form_0"):
slider_val = st.slider("Form slider")
checkbox_val = st.checkbox("Form checkbox")
submitted = st.form_submit_button("Submit")
if submitted:
st.write("slider", slider_val, "checkbox", checkbox_val)
```
### With `streamlit-pydantic-form`
With `streamlit-pydantic-form` you can define a Pydantic model and use it to automatically generate a form.
```python
from typing import Annotated
import streamlit as st
from pydantic import BaseModel
from streamlit_pydantic_form import st_auto_form, widget
class SimpleFormModel(BaseModel):
slider_val: Annotated[int, widget.Slider("Form slider")]
checkbox_val: Annotated[bool, widget.Checkbox("Form checkbox")]
with st_auto_form("form_1", model=SimpleFormModel) as simple_form:
val = simple_form.input_widgets()
submitted = st.form_submit_button("Submit")
if submitted:
st.write("slider", val.slider_val, "checkbox", val.checkbox_val)
```
### Nested Model
You can also define a nested model.
```python
from typing import Annotated
import streamlit as st
from pydantic import BaseModel
from streamlit_pydantic_form import st_auto_form, widget
class ChildFormModel(BaseModel):
slider_val: Annotated[int, widget.Slider("Child slider")]
class ParentFormModel(BaseModel):
slider_val: Annotated[int, widget.Slider("Parent slider")]
checkbox_val: Annotated[bool, widget.Checkbox("Parent checkbox")]
child: ChildFormModel
with st_auto_form("form_2", model=ParentFormModel) as parent_form:
val2 = parent_form.input_widgets()
submitted = st.form_submit_button("Submit")
if submitted:
st.write(
"parent slider",
val2.slider_val,
"parent checkbox",
val2.checkbox_val,
"child slider",
val2.child.slider_val,
)
```
### Custom Widget
You can define a custom widget by defining a custom `WidgetBuilder` and pass it to `st_auto_form` as `widget_builder`.
```python
from typing import Annotated
import streamlit as st
from pydantic import BaseModel
from streamlit_pydantic_form import st_auto_form, widget
# Custom widget builder
class PointWidget(widget.WidgetBuilder):
def build(self) -> PointModel:
x = st.slider("X")
y = st.slider("Y")
return PointModel(x=x, y=y)
with st_auto_form("form_3", model=PointModel, widget_builder=PointWidget()) as point_form:
val3 = point_form.input_widgets()
submitted = st.form_submit_button("Submit")
if submitted:
st.write("x", val3.x, "y", val3.y)
```
You can also use the `Annotated` type hint to define a custom widget.
```python
from typing import Annotated
import streamlit as st
from pydantic import BaseModel
from streamlit_pydantic_form import st_auto_form, widget
# External model
class PointModel(BaseModel):
x: int
y: int
# Custom widget
class PointWidget(widget.WidgetBuilder):
def build(self) -> PointModel:
x = st.slider("X")
y = st.slider("Y")
return PointModel(x=x, y=y)
# Form model
class PointFormModel(BaseModel):
p: Annotated[PointModel, PointWidget()]
with st_auto_form("form_4", model=PointFormModel) as point_form2:
val4 = point_form2.input_widgets()
submitted = st.form_submit_button("Submit")
if submitted:
st.write("x", val4.p.x, "y", val4.p.y)
```
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"description": "# Streamlit Pydnatic Form\n\nStreamlit form component defined by a Pydantic model.\n\n## Installation\n\n```bash\npip install streamlit-pydantic-form\n```\n\n## Usage\n\n### Without `streamlit-pydantic-form`\n\n```python\nimport streamlit as st\n\nwith st.form(\"form_0\"):\n slider_val = st.slider(\"Form slider\")\n checkbox_val = st.checkbox(\"Form checkbox\")\n\n submitted = st.form_submit_button(\"Submit\")\n if submitted:\n st.write(\"slider\", slider_val, \"checkbox\", checkbox_val)\n```\n\n### With `streamlit-pydantic-form`\n\nWith `streamlit-pydantic-form` you can define a Pydantic model and use it to automatically generate a form.\n\n```python\nfrom typing import Annotated\n\nimport streamlit as st\nfrom pydantic import BaseModel\n\nfrom streamlit_pydantic_form import st_auto_form, widget\n\nclass SimpleFormModel(BaseModel):\n slider_val: Annotated[int, widget.Slider(\"Form slider\")]\n checkbox_val: Annotated[bool, widget.Checkbox(\"Form checkbox\")]\n\n\nwith st_auto_form(\"form_1\", model=SimpleFormModel) as simple_form:\n val = simple_form.input_widgets()\n submitted = st.form_submit_button(\"Submit\")\n if submitted:\n st.write(\"slider\", val.slider_val, \"checkbox\", val.checkbox_val)\n```\n\n### Nested Model\n\nYou can also define a nested model.\n\n```python\nfrom typing import Annotated\n\nimport streamlit as st\nfrom pydantic import BaseModel\n\nfrom streamlit_pydantic_form import st_auto_form, widget\n\nclass ChildFormModel(BaseModel):\n slider_val: Annotated[int, widget.Slider(\"Child slider\")]\n\nclass ParentFormModel(BaseModel):\n slider_val: Annotated[int, widget.Slider(\"Parent slider\")]\n checkbox_val: Annotated[bool, widget.Checkbox(\"Parent checkbox\")]\n child: ChildFormModel\n\nwith st_auto_form(\"form_2\", model=ParentFormModel) as parent_form:\n val2 = parent_form.input_widgets()\n submitted = st.form_submit_button(\"Submit\")\n if submitted:\n st.write(\n \"parent slider\",\n val2.slider_val,\n \"parent checkbox\",\n val2.checkbox_val,\n \"child slider\",\n val2.child.slider_val,\n )\n```\n\n### Custom Widget\n\nYou can define a custom widget by defining a custom `WidgetBuilder` and pass it to `st_auto_form` as `widget_builder`.\n\n```python\nfrom typing import Annotated\n\nimport streamlit as st\nfrom pydantic import BaseModel\n\nfrom streamlit_pydantic_form import st_auto_form, widget\n\n# Custom widget builder\nclass PointWidget(widget.WidgetBuilder):\n def build(self) -> PointModel:\n x = st.slider(\"X\")\n y = st.slider(\"Y\")\n return PointModel(x=x, y=y)\n\nwith st_auto_form(\"form_3\", model=PointModel, widget_builder=PointWidget()) as point_form:\n val3 = point_form.input_widgets()\n submitted = st.form_submit_button(\"Submit\")\n if submitted:\n st.write(\"x\", val3.x, \"y\", val3.y)\n```\n\nYou can also use the `Annotated` type hint to define a custom widget.\n\n```python\nfrom typing import Annotated\n\nimport streamlit as st\nfrom pydantic import BaseModel\n\nfrom streamlit_pydantic_form import st_auto_form, widget\n\n# External model\nclass PointModel(BaseModel):\n x: int\n y: int\n\n# Custom widget\nclass PointWidget(widget.WidgetBuilder):\n def build(self) -> PointModel:\n x = st.slider(\"X\")\n y = st.slider(\"Y\")\n return PointModel(x=x, y=y)\n\n# Form model\nclass PointFormModel(BaseModel):\n p: Annotated[PointModel, PointWidget()]\n\nwith st_auto_form(\"form_4\", model=PointFormModel) as point_form2:\n val4 = point_form2.input_widgets()\n submitted = st.form_submit_button(\"Submit\")\n if submitted:\n st.write(\"x\", val4.p.x, \"y\", val4.p.y)\n```\n",
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