colight-prose 2025.7.7.dev202601161520

Static site generator for Colight visualizations

Colight Site

Static site generator for Colight visualizations.

Converts .py files into markdown/HTML documents where:

• Comments become narrative markdown
• Code blocks are executed to generate Colight visualizations
• Output is embedded as interactive .colight files

Usage

# Build a single file
colight-prose build src/post.py --output build/post.md

# Watch for changes
colight-prose watch src/ --output build/

# Initialize new project
colight-prose init my-blog/

File Format

.py files mix comments (markdown) with executable Python code:

# My Data Visualization
# This creates an interactive plot...

import numpy as np
x = np.linspace(0, 10, 100)

# The sine wave
np.sin(x)  # This expression generates a colight visualization

Pragma Directives

Control the output format and visibility of content using pragma comments:

File-level pragmas

Begin with hide-all-, at the beginning of the file:

# | hide-all-code

# Your content here...

Form-level pragmas

Place directly before a code block:

# | show-code
x = np.array([1, 2, 3])

Available pragmas

• hide-code / show-code - Hide or show code blocks
• hide-statements / show-statements - Hide or show Python statements (imports, assignments)
• hide-visuals / show-visuals - Hide or show results/visuals
• hide-prose / show-prose - Hide or show markdown prose (comments)
• format-html - Output in HTML format
• format-markdown - Output in Markdown format

Pragma formats

# %% hide-code          # Double percent format
# | show-visuals        # Pipe format
#| colight: hide-prose  # Legacy format (still supported)

Precedence

1. Form-level pragmas (highest priority)
2. CLI options
3. File-level pragmas
4. Defaults (lowest priority)

show-* pragmas always override corresponding hide-* pragmas.