swarmauri_prompt_j2prompttemplate 0.9.0.dev38

Jinja2 Prompt Template for Swarmauri.

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Swarmauri Prompt J2PromptTemplate

J2PromptTemplate is the Swarmauri Jinja2 prompt template implementation. It accepts literal template strings or template files, renders them with the variables you provide, and registers itself as the J2PromptTemplate swarmauri.prompts entry point.

Highlights

• Load template content from inline strings or filesystem paths.
• Configure one or more search directories via templates_dir for reusable Jinja2 templates with fallback lookup.
• Ship with helpful filters (split, make_singular, make_plural) for prompt engineering tasks.
• Call the instance directly (template({...})) or use generate_prompt() to render with the stored variables.

Installation

Choose the tool that matches your workflow:

# pip
pip install swarmauri_prompt_j2prompttemplate

# Poetry
poetry add swarmauri_prompt_j2prompttemplate

# uv
uv add swarmauri_prompt_j2prompttemplate

Usage

Render a template string

from swarmauri_prompt_j2prompttemplate import J2PromptTemplate

template = J2PromptTemplate(template="Hello, {{ name }}!")
result = template({"name": "World"})
print(result)  # Hello, World!

Load templates from disk (with filters and search paths)

from pathlib import Path

from swarmauri_prompt_j2prompttemplate import J2PromptTemplate

templates_dir = Path("templates")
templates_dir.mkdir(parents=True, exist_ok=True)

template_path = templates_dir / "greeting.j2"
template_path.write_text("Hello, {{ animal|make_plural }}!", encoding="utf-8")

prompt = J2PromptTemplate(templates_dir=str(templates_dir))
prompt.set_template(template_path)

print(prompt({"animal": "fox"}))  # Hello, foxes!

set_template() loads the file with the configured environment. The template file is located relative to the provided templates_dir. If the loader cannot find it immediately, the class searches recursively before falling back to the template's own directory.

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