Organize and Style with Templates

Streamlit always uses the same template with a main and sidebar area to layout and style your app.

With Panel you have the flexibility to use the default, blank template, one of the built in templates or even create your own custom template.

---

Migration Steps

When migrating you will have to decide which template to use

• Blank (default)

• A built-in template like vanilla, bootstrap, material or fast. See the Templates Section of the Components Guide.

• A custom template declared using Jinja2 syntax.

Example

FastListTemplate Example

Here is an example with the FastListTemplate.

from asyncio import sleep
from datetime import datetime

import panel as pn

pn.extension(sizing_mode="stretch_width", template="fast", theme="dark")

pn.Column(
    "# 📖 Info",
    """This app is an example of a built in template with a
*sidebar*, *header* and *main* area.

We have

- set the *header* background, site and title parameters
- set the default *theme* to `dark`

The app streams the current date and time using an *async generator function*.
""",
).servable(target="sidebar")

async def stream():
    for i in range(0, 100):
        await sleep(0.25)
        yield datetime.now()

pn.Column(
    "The current date and time:", *(stream for i in range(5))
).servable(target="main")

pn.state.template.param.update(
    site="Panel",
    title="Template Example",
    header_background="#E91E63",
    accent_base_color="#E91E63",
)