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import re
from datetime import datetime
def format_date(date_str):
"""Format a date string into a human-readable format."""
try:
date_obj = datetime.strptime(date_str, "%Y-%m-%d")
return date_obj.strftime("%b %d, %Y")
except ValueError:
return date_str
def extract_hashtags(text):
"""Extract hashtags from a given text."""
return re.findall(r"#\w+", text)
def calculate_sentiment_score(sentiment_data):
"""Calculate an overall sentiment score from sentiment data."""
if not sentiment_data:
return 0
return sum(sentiment_data.values()) / len(sentiment_data)
def paginate(query, page, per_page=10):
"""Paginate a SQLAlchemy query."""
return query.paginate(page=page, per_page=per_page, error_out=False) |