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app.py
CHANGED
@@ -192,15 +192,12 @@ VALID_PLOTS = {"histplot", "scatterplot", "barplot", "lineplot", "boxplot"}
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print("hello")
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@app.post("/generate_viz/")
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async def generate_viz(file: UploadFile = File(...), query: str = Form(...)):
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print("
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try:
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contents = await file.read()
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excel_file = io.BytesIO(contents)
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df = pd.read_excel(excel_file)
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if query not in VALID_PLOTS:
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return JSONResponse(content={"error": f"Type de graphique invalide. Choisissez parmi : {', '.join(VALID_PLOTS)}"}, status_code=400)
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numeric_cols = df.select_dtypes(include=["number"]).columns
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if len(numeric_cols) < 1:
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@@ -210,7 +207,7 @@ async def generate_viz(file: UploadFile = File(...), query: str = Form(...)):
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y_col = numeric_cols[1] if query != "histplot" and len(numeric_cols) > 1 else None
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prompt_y = f', y="{y_col}"' if y_col else ""
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# Prompt
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prompt = f"""
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### Génère uniquement du code Python fonctionnel pour tracer un {query} avec Matplotlib et Seaborn ###
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# Contraintes :
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@@ -226,32 +223,39 @@ plt.savefig("plot.png")
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plt.close()
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"""
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inputs = codegen_tokenizer(prompt, return_tensors="pt").to(device)
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outputs = codegen_model.generate(
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generated_code = generated_code.split("### Génère uniquement du code Python fonctionnel")[0]
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generated_code = re.sub(r"(import matplotlib.pyplot as plt\nimport seaborn as sns\n)+", "import matplotlib.pyplot as plt\nimport seaborn as sns\n", generated_code)
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if generated_code.strip().endswith("sns."):
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generated_code = generated_code.rsplit("\n", 1)[0]
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print("
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try:
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compile(generated_code, "<string>", "exec")
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except SyntaxError as e:
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return JSONResponse(content={"error": f"Erreur de syntaxe détectée : {e}\nCode généré :\n{generated_code}"}, status_code=422)
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exec_env = {
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"df": df,
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}
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print("🔹🔹🔹 Code réellement exécuté :\n", generated_code)
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exec(generated_code, exec_env)
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img_path = "plot.png"
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@@ -262,9 +266,12 @@ plt.close()
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with open(img_path, "rb") as image_file:
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encoded_string = base64.b64encode(image_file.read()).decode('utf-8')
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except Exception as e:
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return JSONResponse(content={"error": f"Erreur lors de la génération du graphique : {str(e)}"}, status_code=500)
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print("hello")
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@app.post("/generate_viz/")
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async def generate_viz(file: UploadFile = File(...), query: str = Form(...)):
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print("🔵 Début /generate_viz")
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try:
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if query not in VALID_PLOTS:
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return JSONResponse(content={"error": f"Type de graphique invalide. Choisissez parmi : {', '.join(VALID_PLOTS)}"}, status_code=400)
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df = pd.read_excel(file.file)
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numeric_cols = df.select_dtypes(include=["number"]).columns
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if len(numeric_cols) < 1:
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y_col = numeric_cols[1] if query != "histplot" and len(numeric_cols) > 1 else None
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prompt_y = f', y="{y_col}"' if y_col else ""
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# Prompt pour l'IA
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prompt = f"""
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### Génère uniquement du code Python fonctionnel pour tracer un {query} avec Matplotlib et Seaborn ###
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# Contraintes :
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plt.close()
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"""
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print("🟣 Prompt envoyé au modèle :")
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print(prompt)
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inputs = codegen_tokenizer(prompt, return_tensors="pt").to(device)
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outputs = codegen_model.generate(
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**inputs,
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max_new_tokens=120,
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pad_token_id=codegen_tokenizer.eos_token_id
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)
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print("🟠 Raw output du modèle :")
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print(outputs)
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generated_code = codegen_tokenizer.decode(outputs[0], skip_special_tokens=True).strip()
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# Nettoyage
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generated_code = re.sub(r"(import matplotlib.pyplot as plt\nimport seaborn as sns\n)+", "import matplotlib.pyplot as plt\nimport seaborn as sns\n", generated_code)
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if generated_code.strip().endswith("sns."):
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generated_code = generated_code.rsplit("\n", 1)[0]
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print("🔵 Code généré propre :")
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print(generated_code)
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if not generated_code.strip():
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return JSONResponse(content={"error": "Erreur : Code généré vide."}, status_code=500)
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try:
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compile(generated_code, "<string>", "exec")
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except SyntaxError as e:
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return JSONResponse(content={"error": f"Erreur de syntaxe détectée : {e}\nCode généré :\n{generated_code}"}, status_code=422)
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exec_env = {"df": df, "plt": plt, "sns": sns, "pd": pd}
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print("🔹🔹🔹 Code réellement exécuté :")
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exec(generated_code, exec_env)
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img_path = "plot.png"
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with open(img_path, "rb") as image_file:
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encoded_string = base64.b64encode(image_file.read()).decode('utf-8')
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print("🟢 Génération réussie ✅")
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return JSONResponse(content={"image_base64": encoded_string})
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except Exception as e:
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print(f"🔴 Erreur serveur : {e}")
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return JSONResponse(content={"error": f"Erreur lors de la génération du graphique : {str(e)}"}, status_code=500)
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