sentiment.py

# /// script
# dependencies = [
#   "marvin",
# ]
# ///
import os
import sys
import argparse
import marvin
from pydantic import BaseModel, Field

if "MARVIN_OPENAI_API_KEY" not in os.environ:
    sys.exit("Set MARVIN_OPENAI_API_KEY in env first")


class SentimentResult(BaseModel):
    polarity: float = Field(..., description="Sentiment polarity (-1 to 1)")
    subjectivity: float = Field(..., description="Subjectivity (0 to 1)")
    summary: str = Field(..., description="Short summary of sentiment")


@marvin.fn
def analyze_sentiment(text: str) -> SentimentResult:
    """
    Given a text input, return a sentiment analysis result.
    The output includes polarity (-1 to 1), subjectivity (0 to 1), and a summary.
    """


if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Analyze sentiment of a given text.")
    parser.add_argument("--text", required=True, help="Text to analyze")
    args = parser.parse_args()

    sentiment = analyze_sentiment(args.text)

    print(f"Polarity: {sentiment.polarity}")
    print(f"Subjectivity: {sentiment.subjectivity}")
    print(f"Summary: {sentiment.summary}")

About Inline Script Metadata -> https://pybit.es/articles/create-project-less-python-utilities-with-uv-and-inline-script-metadata/