ajout: debut question 8

This commit is contained in:
2026-02-16 13:36:17 +01:00
parent b584f9a301
commit 829c303e78
3 changed files with 17 additions and 686 deletions

366
main.py Normal file → Executable file
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@@ -1,358 +1,14 @@
from typing import cast
from requests import HTTPError, Response, Session
from bs4 import BeautifulSoup, Tag
from collections import OrderedDict
from json import JSONDecodeError, loads
class _ScraperData:
"""_summary_
"""
def __init__(self, data: dict[str, object]) -> None:
"""_summary_
Args:
data (dict[str, object]): _description_
"""
self._data: dict[str, object] = data
def _getcontent(self) -> dict[str, object] | None:
"""_summary_
Returns:
dict[str, object]: _description_
"""
current_data: dict[str, object] = self._data
for key in ["initialReduxState", "product", "content"]:
new_data: object | None = current_data.get(key)
if new_data is None:
return None
current_data: dict[str, object] = cast(dict[str, object], new_data)
return current_data
def _getattributes(self) -> dict[str, object] | None:
"""_summary_
Returns:
dict[str, object]: _description_
"""
current_data: object = self._getcontent()
if current_data is None:
return None
return cast(dict[str, object], current_data.get("attributes"))
def prix(self) -> float | None:
"""
Retourne le prix unitaire d'une bouteille (75cl).
Si aucun prix n'est disponible, retourne None.
"""
content = self._getcontent()
if content is None:
return None
items = content.get("items")
# Vérifie que items existe et n'est pas vide
if not isinstance(items, list) or len(items) == 0:
return None
prix_calcule: float | None = None
for item in items:
if not isinstance(item, dict):
continue
p = item.get("offerPrice")
attrs = item.get("attributes", {})
nbunit = attrs.get("nbunit", {}).get("value")
equivbtl = attrs.get("equivbtl", {}).get("value")
if not isinstance(p, (int, float)) or not nbunit or not equivbtl:
continue
nb = float(nbunit)
eq = float(equivbtl)
if nb <= 0 or eq <= 0:
continue
if nb == 1 and eq == 1:
return float(p)
prix_calcule = round(float(p) / (nb * eq), 2)
return prix_calcule
def appellation(self) -> str | None:
"""_summary_
Returns:
str: _description_
"""
attrs: dict[str, object] | None = self._getattributes()
if attrs is not None:
app_dict: object | None = attrs.get("appellation")
if isinstance(app_dict, dict):
return cast(str, app_dict.get("value"))
return None
def _getcritiques(self, name: str) -> str | None:
"""_summary_
Args:
name (str): _description_
Returns:
str | None: _description_
"""
current_value: dict[str, object] | None = self._getattributes()
if current_value is not None:
app_dict: dict[str, object] = cast(
dict[str, object], current_value.get(name)
)
if not app_dict:
return None
val = cast(str, app_dict.get("value")).rstrip("+").split("-")
if len(val) > 1 and val[1] != "":
val[0] = str(round((float(val[0]) + float(val[1])) / 2, 1))
return val[0]
return None
def parker(self) -> str | None:
return self._getcritiques("note_rp")
def robinson(self) -> str | None:
return self._getcritiques("note_jr")
def suckling(self) -> str | None:
return self._getcritiques("note_js")
def getdata(self) -> dict[str, object]:
return self._data
def informations(self) -> str:
"""
Retourne toutes les informations sous la forme :
"Appelation,Parker,J.Robinson,J.Suckling,Prix"
"""
appellation = self.appellation()
parker = self.parker()
robinson = self.robinson()
suckling = self.suckling()
try:
prix = self.prix()
except ValueError:
prix = None
return f"{appellation},{parker},{robinson},{suckling},{prix}"
class Scraper:
"""
Scraper est une classe qui permet de gerer
de façon dynamique des requetes uniquement
sur le serveur https de Millesima
"""
def __init__(self) -> None:
"""
Initialise la session de scraping.
"""
self._url: str = "https://www.millesima.fr/"
# Très utile pour éviter de renvoyer toujours les mêmes handshake
# TCP et d'avoir toujours une connexion constante avec le server
self._session: Session = Session()
# Système de cache pour éviter de solliciter le serveur inutilement
self._latest_request: tuple[(str, Response)] | None = None
self._latest_soups: OrderedDict[str, BeautifulSoup] = OrderedDict[
str, BeautifulSoup
]()
def _request(self, subdir: str) -> Response:
"""
Effectue une requête GET sur le serveur Millesima.
Args:
subdir (str): Le sous-répertoire ou chemin de l'URL (ex: "/vins").
Returns:
Response: L'objet réponse de la requête.
Raise:
HTTPError: Si le serveur renvoie un code d'erreur (4xx, 5xx).
"""
target_url: str = self._url + subdir.lstrip("/")
response: Response = self._session.get(url=target_url, timeout=10)
response.raise_for_status()
return response
def getresponse(self, subdir: str = "", use_cache: bool = True) -> Response:
"""
Récupère la réponse d'une page, en utilisant le cache si possible.
Args:
subdir (str, optional): Le chemin de la page.
use_cache (bool, optional): Utilise la donnée deja sauvegarder ou
écrase la donnée utilisé avec la nouvelle
Returns:
Response: L'objet réponse (cache ou nouvelle requête).
Raise:
HTTPError: Si le serveur renvoie un code d'erreur (4xx, 5xx).
"""
# si dans le cache, latest_request existe
if use_cache and self._latest_request is not None:
rq_subdir, rq_response = self._latest_request
# si c'est la meme requete et que use_cache est true,
# on renvoie celle enregistrer
if subdir == rq_subdir:
return rq_response
request: Response = self._request(subdir)
# on recrée la structure pour le systeme de cache si activer
if use_cache:
self._latest_request = (subdir, request)
return request
def getsoup(self, subdir: str, use_cache: bool = True) -> BeautifulSoup:
"""
Récupère le contenu HTML d'une page et le transforme en objet BeautifulSoup.
Args:
subdir (str, optional): Le chemin de la page.
Returns:
BeautifulSoup: L'objet parsé pour extraction de données.
Raise:
HTTPError: Si le serveur renvoie un code d'erreur (4xx, 5xx).
"""
if use_cache and subdir in self._latest_soups:
return self._latest_soups[subdir]
markup: str = self.getresponse(subdir).text
soup: BeautifulSoup = BeautifulSoup(markup, features="html.parser")
if use_cache:
self._latest_soups[subdir] = soup
if len(self._latest_soups) > 10:
_ = self._latest_soups.popitem(last=False)
return soup
def getjsondata(self, subdir: str, id: str = "__NEXT_DATA__") -> _ScraperData:
"""
Extrait les données JSON contenues dans la balise __NEXT_DATA__ du site.
Beaucoup de sites modernes (Next.js) stockent leur état initial dans
une balise <script> pour l'hydratation côté client.
Args:
subdir (str): Le chemin de la page.
id (str, optional): L'identifiant de la balise script (par défaut __NEXT_DATA__).
Raises:
HTTPError: Soulevée par `getresponse` si le serveur renvoie un code d'erreur (4xx, 5xx).
JSONDecodeError: Soulevée par `loads` si le contenu de la balise n'est pas un JSON valide.
ValueError: Soulevée manuellement si l'une des clés attendues (props, pageProps, etc.)
est absente de la structure JSON.
Returns:
dict[str, object]: Un dictionnaire contenant les données utiles
ou un dictionnaire vide en cas d'erreur.
"""
soup: BeautifulSoup = self.getsoup(subdir)
script: Tag | None = soup.find("script", id=id)
if script is None or not script.string:
raise ValueError(f"le script id={id} est introuvable")
current_data: object = cast(object, loads(script.string))
for key in ["props", "pageProps"]:
if isinstance(current_data, dict) and key in current_data:
current_data = cast(object, current_data[key])
continue
raise ValueError(f"Clé manquante dans le JSON : {key}")
return _ScraperData(cast(dict[str, object], current_data))
def _geturlproductslist(self, subdir: str):
"""_summary_
Args:
subdir (str): _description_
Returns:
_type_: _description_
"""
try:
data: dict[str, object] = self.getjsondata(subdir).getdata()
for element in ["initialReduxState", "categ", "content"]:
data: dict[str, object] = cast(dict[str, object], data.get(element))
if not isinstance(data, dict):
return None
products: list[str] = cast(list[str], data.get("products"))
if isinstance(products, list):
return products
except (JSONDecodeError, HTTPError):
return None
def getvins(self, subdir: str, filename: str):
"""_summary_
Args:
subdir (str): _description_
filename (str): _description_
"""
with open(filename, "a") as f:
cache: set[str] = set[str]()
page = 0
_ = f.write("Appellation,Robert,Robinson,Suckling,Prix\n")
while True:
page += 1
products_list = self._geturlproductslist(f"{subdir}?page={page}")
if not products_list:
break
products_list_length = len(products_list)
for i, product in enumerate(products_list):
if not isinstance(product, dict):
continue
link = product.get("seoKeyword")
if link and link not in cache:
try:
infos = self.getjsondata(link).informations()
_ = f.write(infos + "\n")
print(
f"page: {page} | {i + 1}/{products_list_length} {link}"
)
cache.add(link)
except (JSONDecodeError, HTTPError) as e:
print(f"Erreur sur le produit {link}: {e}")
f.flush()
#!/usr/bin/env python3
from os import getcwd
from os.path import normpath, join
from sys import argv
from pandas import read_csv, DataFrame
if __name__ == "__main__":
Scraper().getvins("bordeaux.html", "donnee.csv")
if len(argv) != 2:
raise ValueError(f"{argv[0]} <subdir>")
path: str = normpath(join(getcwd(), argv[1]))
db: DataFrame = read_csv(path)
print(db.all())

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@@ -1,5 +1,6 @@
requests>=2.32.5
requests-mock>=1.12.1
beautifulsoup4>=4.14.3
pytest>=9.0.2
requests-mock>=1.12.1
requests==2.32.5
requests-mock==1.12.1
beautifulsoup4==4.14.3
pytest==9.0.2
requests-mock==1.12.1
pandas==3.0.0

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@@ -1,326 +0,0 @@
from json import dumps
from unittest.mock import patch, mock_open
import pytest
from requests_mock import Mocker
from main import Scraper
@pytest.fixture(autouse=True)
def mock_site():
with Mocker() as m:
m.get(
"https://www.millesima.fr/",
text=f"""
<html>
<body>
<script id="__NEXT_DATA__" type="application/json">
{dumps({
"props": {
"pageProps": {
"initialReduxState": {
"product": {
"content": {
"items": [],
"attributes": {}
}
}
}
}
}
})}
</script>
</body>
</html>
""",
)
m.get(
"https://www.millesima.fr/poubelle",
text=f"""
<html>
<body>
<h1>POUBELLE</h1>
<script id="__NEXT_DATA__" type="application/json">
{dumps({
"props": {
"pageProps": {
}
}
})}
</script>
</body>
</html>
""",
)
json_data = {
"props": {
"pageProps": {
"initialReduxState": {
"product": {
"content": {
"_id": "J4131/22-11652",
"partnumber": "J4131/22",
"productName": "Nino Negri : 5 Stelle Sfursat 2022",
"productNameForSearch": "Nino Negri : 5 Stelle Sfursat 2022",
"storeId": "11652",
"seoKeyword": "nino-negri-5-stelle-sfursat-2022.html",
"title": "Nino Negri : 5 Stelle Sfursat 2022",
"items": [
{
"_id": "J4131/22/C/CC/6-11652",
"partnumber": "J4131/22/C/CC/6",
"taxRate": "H",
"listPrice": 842,
"offerPrice": 842,
"seoKeyword": "vin-de-charazade1867.html",
"shortdesc": "Une bouteille du meilleur vin du monde?",
"attributes": {
"promotion_o_n": {
"valueId": "0",
"name": "En promotion",
"value": "Non",
"sequence": 80,
"displayable": "False",
"type": "CHECKBOX",
"isSpirit": False,
},
"in_stock": {
"valueId": "L",
"name": "En stock",
"value": "Livrable",
"sequence": 65,
"displayable": "true",
"type": "CHECKBOX",
"isSpirit": False,
},
"equivbtl": {
"valueId": "1",
"name": "equivbtl",
"value": "1",
"isSpirit": False,
},
"nbunit": {
"valueId": "1",
"name": "nbunit",
"value": "1",
"isSpirit": False,
},
},
"stock": 12,
"availability": "2026-02-05",
"isCustomizable": False,
"gtin_cond": "",
"gtin_unit": "",
"stockOrigin": "EUR",
"isPrevSale": False,
}
],
"attributes": {
"appellation": {
"valueId": "433",
"name": "Appellation",
"value": "Madame-Loïk",
"url": "Madame-loik.html",
"isSpirit": False,
"groupIdentifier": "appellation_433",
},
"note_rp": {
"valueId": "91",
"name": "Peter Parker",
"value": "91",
"isSpirit": False,
},
"note_jr": {
"valueId": "17+",
"name": "J. Robinson",
"value": "17+",
"isSpirit": False,
},
"note_js": {
"valueId": "93-94",
"name": "J. cherazade",
"value": "93-94",
"isSpirit": False,
},
},
}
}
}
}
}
}
html_product = f"""
<html>
<body>
<h1>MILLESIMA</h1>
<script id="__NEXT_DATA__" type="application/json">
{dumps(json_data)}
</script>
</body>
</html>
"""
m.get(
"https://www.millesima.fr/nino-negri-5-stelle-sfursat-2022.html",
text=html_product,
)
html_product = f"""
<html>
<body>
<h1>MILLESIMA</h1>
<script id="__NEXT_DATA__" type="application/json">
{dumps(json_data)}
</script>
</body>
</html>
"""
list_pleine = f"""
<html>
<body>
<h1>LE WINE</h1>
<script id="__NEXT_DATA__" type="application/json">
{dumps({
"props": {
"pageProps": {
"initialReduxState": {
"categ": {
"content": {
"products": [
{"seoKeyword": "/nino-negri-5-stelle-sfursat-2022.html",},
{"seoKeyword": "/poubelle",},
{"seoKeyword": "/",}
]
}
}
}
}
}
}
)}
</script>
</body>
</html>
"""
list_vide = f"""
<html>
<body>
<h1>LE WINE</h1>
<script id="__NEXT_DATA__" type="application/json">
{dumps({
"props": {
"pageProps": {
"initialReduxState": {
"categ": {
"content": {
"products": [
]
}
}
}
}
}
}
)}
</script>
</body>
</html>
"""
m.get(
"https://www.millesima.fr/wine.html",
complete_qs=False,
response_list=[
{"text": list_pleine},
{"text": list_vide},
],
)
# on return m sans fermer le server qui simule la page
yield m
@pytest.fixture
def scraper() -> Scraper:
return Scraper()
def test_soup(scraper: Scraper):
vide = scraper.getsoup("")
poubelle = scraper.getsoup("poubelle")
contenu = scraper.getsoup("nino-negri-5-stelle-sfursat-2022.html")
assert vide.find("h1") is None
assert str(poubelle.find("h1")) == "<h1>POUBELLE</h1>"
assert str(contenu.find("h1")) == "<h1>MILLESIMA</h1>"
def test_appellation(scraper: Scraper):
vide = scraper.getjsondata("")
poubelle = scraper.getjsondata("poubelle")
contenu = scraper.getjsondata("nino-negri-5-stelle-sfursat-2022.html")
assert vide.appellation() is None
assert poubelle.appellation() is None
assert contenu.appellation() == "Madame-Loïk"
def test_fonctionprivee(scraper: Scraper):
vide = scraper.getjsondata("")
poubelle = scraper.getjsondata("poubelle")
contenu = scraper.getjsondata("nino-negri-5-stelle-sfursat-2022.html")
assert vide._getattributes() is not None
assert vide._getattributes() == {}
assert vide._getcontent() is not None
assert vide._getcontent() == {"items": [], "attributes": {}}
assert poubelle._getattributes() is None
assert poubelle._getcontent() is None
assert contenu._getcontent() is not None
assert contenu._getattributes() is not None
def test_critiques(scraper: Scraper):
vide = scraper.getjsondata("")
poubelle = scraper.getjsondata("poubelle")
contenu = scraper.getjsondata("nino-negri-5-stelle-sfursat-2022.html")
assert vide.parker() is None
assert vide.robinson() is None
assert vide.suckling() is None
assert vide._getcritiques("test_ts") is None
assert poubelle.parker() is None
assert poubelle.robinson() is None
assert poubelle.suckling() is None
assert poubelle._getcritiques("test_ts") is None
assert contenu.parker() == "91"
assert contenu.robinson() == "17"
assert contenu.suckling() == "93.5"
assert contenu._getcritiques("test_ts") is None
def test_prix(scraper: Scraper):
vide = scraper.getjsondata("")
poubelle = scraper.getjsondata("poubelle")
contenu = scraper.getjsondata("nino-negri-5-stelle-sfursat-2022.html")
assert vide.prix() is None
assert poubelle.prix() is None
assert contenu.prix() == 842.0
def test_informations(scraper: Scraper):
contenu = scraper.getjsondata("nino-negri-5-stelle-sfursat-2022.html")
assert contenu.informations() == "Madame-Loïk,91,17,93.5,842.0"
vide = scraper.getjsondata("")
poubelle = scraper.getjsondata("poubelle")
assert vide.informations() == "None,None,None,None,None"
assert poubelle.informations() == "None,None,None,None,None"
def test_search(scraper: Scraper):
m = mock_open()
with patch("builtins.open", m):
scraper.getvins("wine.html", "fake_file.csv")
assert m().write.called
all_writes = "".join(call.args[0] for call in m().write.call_args_list)
assert "Madame-Loïk,91,17,93.5,842.0" in all_writes