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research.py
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86 lines (72 loc) · 2.93 KB
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"""
Recherche web via DuckDuckGo HTML (requests pur — pas de clé API, pas de dépendance httpx).
"""
import re
import requests
HEADERS = {"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36"}
DDG_URL = "https://html.duckduckgo.com/html/"
def _search(query: str, max_results: int = 4) -> list[dict]:
"""Recherche DuckDuckGo via l'endpoint HTML — fonctionne sans lib externe."""
try:
r = requests.post(
DDG_URL,
data={"q": query, "s": "0", "kl": "fr-fr"},
headers=HEADERS,
timeout=8,
)
if r.status_code != 200:
return []
# Extraction titre + snippet depuis le HTML brut
titles = re.findall(r'class="result__a"[^>]*>(.*?)</a>', r.text, re.DOTALL)
snippets = re.findall(r'class="result__snippet"[^>]*>(.*?)</a>', r.text, re.DOTALL)
results = []
for title, snippet in zip(titles, snippets):
t = re.sub(r'<[^>]+>', '', title).strip()
s = re.sub(r'<[^>]+>', '', snippet).strip()
s = re.sub(r''', "'", s)
if t or s:
results.append({"title": t, "body": s})
if len(results) >= max_results:
break
return results
except Exception as e:
print(f"⚠️ DDG search error: {e}")
return []
def _snippets(results: list[dict], max_chars: int = 200) -> list[str]:
return [
f"• {r.get('title', '')}: {r.get('body', '')[:max_chars]}"
for r in results if r.get("title") or r.get("body")
]
def market_context() -> str:
"""Contexte macro + marché du jour pour le briefing IA."""
queries = [
"CAC 40 bourse Paris actualité aujourd'hui",
"marchés européens taux macro économie semaine",
"small cap France Euronext opportunités hausse",
]
snippets = []
for q in queries:
snippets += _snippets(_search(q, max_results=2))
return "\n".join(snippets[:9]) or "Données web indisponibles."
def research_stock(ticker: str, company_name: str = "") -> str:
"""Recherche approfondie sur une action spécifique."""
name = company_name or ticker
queries = [
f"{name} bourse actualités résultats 2026",
f"{ticker} cours objectif analyste recommandation achat",
f"{name} catalyseurs perspectives prochains mois",
]
snippets = []
for q in queries:
snippets += _snippets(_search(q, max_results=3))
return "\n".join(snippets[:10]) or "Aucune donnée web trouvée."
def scan_sector(sector: str) -> str:
"""Recherche les meilleures opportunités dans un secteur."""
queries = [
f"meilleures actions {sector} Euronext 2026 hausse",
f"{sector} small cap France achat recommandation analyste",
]
snippets = []
for q in queries:
snippets += _snippets(_search(q, max_results=3))
return "\n".join(snippets[:8]) or "Aucune donnée web trouvée."