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from transformers import AutoModelForCausalLM, AutoTokenizer
import gradio as gr
import torch
import tempfile # ✅ Import tempfile to create temp files
# ✅ Load the fastest model on CPU
model_name = "Salesforce/codegen-350M-mono" # Fastest model for code review
tokenizer = AutoTokenizer.from_pretrained(model_name)
model = AutoModelForCausalLM.from_pretrained(model_name).to("cpu") # Force CPU mode
import tempfile
import tempfile
import tempfile
def review_code(code_snippet):
print("✅ Received Code:", code_snippet) # Debugging log
# ✅ Improved prompt with strict format rules
prompt = f"""
### Instruction:
You are a Python code reviewer. Your job is to analyze and fix errors in the provided Python code.
Make necessary corrections such as adding missing return statements, fixing syntax errors, and correcting logical mistakes.
ONLY return the corrected function definition—DO NOT generate any new function calls or explanations.
### Input Code:
{code_snippet}
### Corrected Function:
"""
# Process input
inputs = tokenizer(prompt, return_tensors="pt").to("cpu") # Move to CPU
outputs = model.generate(
**inputs,
max_new_tokens=50, # ✅ Limits AI output to prevent hallucinations
do_sample=False,
num_beams=4, # ✅ Higher beams for better correction quality
repetition_penalty=3.0 # ✅ Stronger penalty to prevent repeated tokens
)
# Check if the model generated output
if outputs is None:
print("❌ Model did not generate output!") # Debugging log
return "Error: Model did not generate output."
reviewed_code = tokenizer.decode(outputs[0], skip_special_tokens=True).strip()
print("✅ Generated Code:", reviewed_code) # Debugging log
# ✅ Ensure AI output starts with "def" to guarantee it returned a function
if not reviewed_code.startswith("def"):
return "Error: AI did not return a valid function."
# ✅ Write reviewed code to a temporary file for download
temp_file_path = tempfile.NamedTemporaryFile(delete=False, suffix=".txt").name
with open(temp_file_path, "w") as temp_file:
temp_file.write(reviewed_code)
return reviewed_code, temp_file_path # ✅ Return reviewed code & file path
# ✅ Handle user input and return reviewed code
def check_code(input_code):
reviewed_code, file_path = review_code(input_code)
return input_code, reviewed_code, file_path # ✅ Correctly return file path
# ✅ Gradio UI with Side-by-Side Comparison & Fixed Download Option
interface = gr.Interface(
fn=check_code,
inputs=gr.Textbox(label="Enter Python Code"),
outputs=[
gr.Textbox(label="Original Code", interactive=False), # Left side
gr.Textbox(label="Reviewed Code", interactive=False), # Right side
gr.File(label="Download Reviewed Code") # ✅ Fixed Download Button
],
title="🚀 AI Code Reviewer",
description="📌 Enter Python code and get a reviewed version. Download the reviewed code as a file.",
allow_flagging="never"
)
# ✅ Launch app (Fixes font issues and removes `share=True`)
interface.launch(server_name="0.0.0.0", server_port=7860, show_error=True)
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