Update Dockerfile and project files for UV migration

- Changed base image to use UV with Python 3.11. - Updated working directory and file copying to align with UV requirements. - Removed requirements.txt and replaced it with uv.lock and pyproject.toml for dependency management. - Modified README to reflect new build and run commands. - Set default command to run the application using UV.
python-escpos · hasansezertasan · Sep 7, 2025 · Sep 7, 2025 · Sep 7, 2025 · Feb 9, 2026
commit ea00355e510fa03f23b91c647a4c51ad8f11fc16
diff --git a/examples/docker-flask/Dockerfile b/examples/docker-flask/Dockerfile
@@ -1,28 +1,26 @@
-# Use the official Python image as the base image
-FROM python:3.9-slim
+# Use the official UV image
+FROM ghcr.io/astral-sh/uv:python3.11-bookworm-slim
+ENV UV_COMPILE_BYTECODE=1 UV_LINK_MODE=copy
 
-# Set the working directory
+# Set the working directory to /app
 WORKDIR /app
 
-# Copy the requirements file
-COPY requirements.txt .
+# Copy the uv.lock file and the pyproject.toml file
+COPY uv.lock pyproject.toml /app/
 
-#Install the libcups library
-RUN apt-get update -y && apt-get install libcups2-dev -y
-# Install the Python packages
-RUN pip install --no-cache-dir -r requirements.txt
-RUN pip install python-escpos --pre
-
-# Install Git
-RUN apt-get update && \
-    apt-get install -y git && \
+# Install the libcups library and Git, then clean up apt lists
+RUN apt-get update -y && \
+    apt-get install -y libcups2-dev git && \
     rm -rf /var/lib/apt/lists/*
 
-# Copy the Flask app
-COPY app.py .
+# Install the dependencies
+RUN uv sync --frozen --no-install-project --no-dev
+
+# Copy the rest of the application code to the container
+COPY . /app
 
-# Expose the port the Flask app will run on
+# Expose the port the application will run on
 EXPOSE 8080
 
-# Run the Flask app
-CMD ["python", "app.py"]
+# Set the default command to run the application
+CMD ["uv", "run", "app.py"]
diff --git a/examples/docker-flask/README.md b/examples/docker-flask/README.md
@@ -1,6 +1,8 @@
+# Flask and Python-ESC/POS example
+
 Simple example on how to use it inside a web service
 
-```
+```sh
 docker build . -t escpos-web
-docker run --network=host -p 9999:9999 escpos
-```
+docker run --network=host -p 9999:9999 escpos-web
+```
diff --git a/examples/docker-flask/pyproject.toml b/examples/docker-flask/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "flask-example"
 version = "0.1.0"
-description = "Add your description here"
+description = "Flask and Python-ESC/POS example"
 readme = "README.md"
 requires-python = ">=3.9"
 dependencies = [

diff --git a/examples/docker-flask/requirements.txt b/examples/docker-flask/requirements.txt