umara 0.4.2

A beautiful, modern Python framework for creating web UIs

Umara

Beautiful Python UIs — Without the Complexity

Getting Started • Documentation • Examples • Contributing

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Why Umara?

Umara is a modern Python framework for building web applications with pure Python. No HTML, CSS, or JavaScript required.

Think of it as a more polished alternative to Streamlit — with better styling, smarter state management, and more layout control.

import umara as um

um.set_theme('ocean')

um.header('Welcome to Umara')

name = um.input('Your name')
if um.button('Say Hello'):
    um.success(f'Hello, {name}!')

Key Differentiators

Feature	Umara	Streamlit
Default Styling	Modern, polished design	Basic styling
Theming	12 built-in themes + custom	Limited
Layout Control	Flexbox, Grid, precise positioning	Column-based only
State Management	Component-level, efficient	Full script re-runs
Animations	Smooth transitions built-in	None
Performance	Smart re-rendering	Re-runs entire script

Features

• Beautiful by Default — Components look polished out of the box
• Fast & Reactive — WebSocket-based for instant UI updates
• Flexible Theming — 12 professional themes + custom themes
• Powerful Layouts — Columns, grids, cards, tabs with precise control
• Hot Reload — See changes instantly during development
• Smart State — Efficient updates without full re-runs

Quick Start

Installation

pip install umara

Create Your First App

Create app.py:

import umara as um

um.set_theme('light')

um.header('My First Umara App')
um.text('Building beautiful UIs is easy!')

with um.card():
    name = um.input('Enter your name', placeholder='John Doe')
    age = um.slider('Select your age', 0, 100, 25)

    if um.button('Submit', variant='primary'):
        um.success(f'Hello {name}, you are {age} years old!')

with um.columns(3):
    with um.column():
        um.metric('Users', '12.5K', delta=12.3)
    with um.column():
        um.metric('Revenue', '$48K', delta=8.1)
    with um.column():
        um.metric('Growth', '23%', delta=-2.4)

Run Your App

Start the development server:

umara run app.py

Then open your browser to http://localhost:8501 to see your app.

The server runs with hot reload enabled by default, so any changes you make to app.py will automatically refresh in the browser.

Documentation

Themes

# 12 built-in professional themes
um.set_theme('light')     # Clean, minimal
um.set_theme('dark')      # Modern dark mode
um.set_theme('ocean')     # Calming blues
um.set_theme('forest')    # Earthy greens
um.set_theme('slate')     # Corporate gray
um.set_theme('nord')      # Arctic, Scandinavian
um.set_theme('midnight')  # Deep purple dark
um.set_theme('rose')      # Warm pink, fintech
um.set_theme('copper')    # Premium bronze
um.set_theme('lavender')  # Soft purple, calming
um.set_theme('sunset')    # Warm orange
um.set_theme('mint')      # Fresh teal

# Create custom themes
um.create_theme(
    'my-brand',
    base='dark',
    colors={
        'primary': '#ff6b6b',
        'accent': '#4ecdc4'
    }
)

Layout Components

Columns

with um.columns(3):
    with um.column():
        um.text('Column 1')
    with um.column():
        um.text('Column 2')
    with um.column():
        um.text('Column 3')

Grid

with um.grid(columns=4, gap='16px'):
    for i in range(8):
        with um.card():
            um.text(f'Card {i+1}')

Cards

with um.card(title='Dashboard', subtitle='Real-time metrics'):
    um.metric('Active Users', '1,234')
    um.progress(75, label='Server Load')

Tabs

with um.tabs(['Overview', 'Analytics', 'Settings']) as t:
    with t.tab(0):
        um.text('Overview content')
    with t.tab(1):
        um.text('Analytics content')
    with t.tab(2):
        um.text('Settings content')

Input Widgets

# Text inputs
name = um.input('Name', placeholder='Enter name...')
bio = um.text_area('Bio', rows=4)

# Selection
option = um.select('Choose', options=['A', 'B', 'C'])
value = um.slider('Value', 0, 100, 50)

# Toggles
agreed = um.checkbox('I agree to terms')
enabled = um.toggle('Enable feature')

# Buttons with variants
um.button('Primary', variant='primary')
um.button('Secondary', variant='secondary')
um.button('Outline', variant='outline')
um.button('Danger', variant='danger')

Data Display

# Metrics with deltas
um.metric('Revenue', '$48,234', delta=12.5, delta_label='vs last month')

# Progress bars
um.progress(75, label='Completion')

# Tables (works with pandas)
data = [
    {'Name': 'Alice', 'Role': 'Engineer'},
    {'Name': 'Bob', 'Role': 'Designer'},
]
um.dataframe(data)

# Stat cards with trends
um.stat_card('Total Users', '12,543', trend=12.5, icon='Users')

Charts

# Line chart
data = [
    {'month': 'Jan', 'revenue': 10000, 'profit': 2000},
    {'month': 'Feb', 'revenue': 25000, 'profit': 5000},
]
um.line_chart(data, x='month', y=['revenue', 'profit'], title='Revenue & Profit')

# Bar chart
um.bar_chart(data, x='category', y='sales', title='Sales by Category')

# Area chart
um.area_chart(data, x='month', y='revenue', title='Revenue Trend')

# Pie chart
um.pie_chart(data, label='name', value='share', title='Market Share')

Smart Write

# Automatically handles any data type
um.write('Hello, world!')           # Text
um.write(42)                        # Numbers
um.write({'a': 1, 'b': 2})          # Dicts as JSON
um.write(df)                        # DataFrames as tables
um.write(my_chart)                  # Charts

Forms

with um.form('my_form'):
    name = um.input('Name')
    email = um.input('Email')

    if um.form_submit_button('Submit'):
        um.success(f'Thanks {name}!')

Feedback Messages

um.success('Operation completed!')
um.error('Something went wrong.')
um.warning('Please review your input.')
um.info('Pro tip: Try the dark theme!')
um.toast('Quick notification!')     # Toast notification

Custom Styling

from umara import style

um.text(
    'Styled text',
    style=style(
        color='#6366f1',
        font_size='24px',
        font_weight='bold'
    )
)

CLI Commands

# Run an app
umara run app.py

# Run with options
umara run app.py --host 0.0.0.0 --port 8080

# Create new project
umara init my_project

# List themes
umara themes

Examples

Dashboard

import umara as um

um.set_theme('dark')
um.header('Analytics Dashboard')

with um.columns(4):
    for label, value, trend in [
        ('Users', '12,543', 12.5),
        ('Revenue', '$48.2K', 8.2),
        ('Sessions', '1,892', -2.4),
        ('Conversion', '3.24%', 0.5),
    ]:
        with um.column():
            um.stat_card(label, value, trend=trend)

um.subheader('Recent Activity')
um.dataframe(activity_data)

Form

import umara as um

um.header('Contact Form')

with um.card():
    name = um.input('Name', key='name')
    email = um.input('Email', key='email')
    message = um.text_area('Message', key='message')

    if um.button('Send Message', variant='primary'):
        if name and email and message:
            um.success('Message sent successfully!')
        else:
            um.error('Please fill in all fields.')

Chat Interface

Build AI chatbot interfaces:

import umara as um

# Simple chat widget
messages = [
    {'role': 'assistant', 'content': 'Hello! How can I help?'},
    {'role': 'user', 'content': 'What is Umara?'},
]

message = um.chat(messages, key='my_chat')

if message:
    # Handle new message (call your AI API here)
    messages.append({'role': 'user', 'content': message})

Or build custom chat layouts:

with um.chat_container(height='400px'):
    um.chat_message('user', 'Hello!')
    um.chat_message('assistant', 'Hi there!')

um.chat_input('Type a message...', key='input')

All Components

Layout

container, columns, grid, card, tabs, divider, spacer, sidebar

Typography

title, header, subheader, text, caption, markdown, code, latex

Inputs

button, download_button, link_button, input, text_area, number_input, slider, select_slider, select, multiselect, checkbox, toggle, radio, date_input, time_input, color_picker, rating, file_uploader, camera_input, audio_input, pills, segmented_control, feedback

Forms

form, form_submit_button

Data Display

write, dataframe, data_editor, table, metric, stat_card, progress, badge, avatar, avatar_group

Feedback

success, error, warning, info, toast, spinner, status, loading_skeleton, empty_state, exception

Navigation

breadcrumbs, pagination, steps, nav_link

Container

expander, accordion, modal, dialog, popover, tooltip

Chat

chat, chat_message, chat_input, chat_container

Charts

line_chart, bar_chart, area_chart, pie_chart, scatter_chart, map

Media

image, video, audio, logo, iframe

Utility

timeline, json_viewer, html, copy_button, tag_input, search_input

Page Config

set_page_config, rerun, stop

Architecture

umara/
├── umara/                 # Python package
│   ├── core.py           # App lifecycle & component tree
│   ├── components.py     # UI components
│   ├── server.py         # WebSocket server
│   ├── frontend.py       # Frontend HTML/CSS/JS
│   ├── state.py          # State management
│   ├── themes.py         # Theming system
│   └── cli.py            # CLI commands
└── examples/             # Example apps

Contributing

Contributions are welcome. Here's how to get started:

# Clone the repo
git clone https://github.com/lhassa8/umara.git
cd umara

# Create and activate a virtual environment
python -m venv venv
source venv/bin/activate  # On Windows: venv\Scripts\activate

# Install in dev mode with development dependencies
pip install -e ".[dev]"

# Run tests
pytest

# Run the demo app
umara run examples/demo_app.py
# Then open http://localhost:8501 in your browser

Roadmap

• Charts & data visualization
• Chat/conversation components
• Additional input types
• Modern frontend with animations
• Streamlit parity (112 components)
• Forms with batched submission
• Page configuration
• Authentication helpers
• Multi-page app support
• Component marketplace
• VS Code extension

License

MIT License — see LICENSE for details.

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