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# Use an official lightweight Python image.
FROM python:3.10-slim

# Install system packages required by some Python dependencies.
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    git \
    wget \
    && rm -rf /var/lib/apt/lists/*

# Set the working directory inside the container.
WORKDIR /app

# Set environment variables for NLTK and Hugging Face Transformers cache directories.
ENV NLTK_DATA=/app/nltk_data
ENV TRANSFORMERS_CACHE=/app/transformers_cache

# Create the cache directories with permissions that allow writing.
RUN mkdir -p /app/nltk_data /app/transformers_cache && \
    chmod -R 777 /app/nltk_data /app/transformers_cache

# Copy the requirements file and install the Python dependencies.
COPY requirements.txt .
RUN pip install --upgrade pip && pip install -r requirements.txt

# Copy your entire project into the container.
COPY . .

# Expose the port your Flask app will run on.
EXPOSE 7860

# Define the command to run your Flask app.
CMD ["python", "app.py"]