User: can you code a rotating wire frame cube in python using moderngl , glfw ?
Assistant: Certainly! Below is a simple example of how to create a rotating wireframe cube using ModernGL and GLFW in Python. Before you proceed, ensure you have the necessary packages installed. You can install them using pip:

```bash
pip install moderngl glfw
```

Here's the code for a rotating wireframe cube:

```python
import glfw
import moderngl
import numpy as np
from pyrr import Matrix44

def main():
    # Initialize GLFW
    if not glfw.init():
        return

    # Create a windowed mode window and its OpenGL context
    window = glfw.create_window(800, 600, "Rotating Wireframe Cube", None, None)
    if not window:
        glfw.terminate()
        return

    # Make the window's context current
    glfw.make_context_current(window)

    # Initialize ModernGL
    ctx = moderngl.create_context()

    # Define vertices for a cube
    vertices = np.array([
        # Front face
        -1, -1,  1,
         1, -1,  1,
         1,  1,  1,
        -1,  1,  1,
        # Back face
        -1, -1, -1,
         1, -1, -1,
         1,  1, -1,
        -1,  1, -1,
    ], dtype='f4')

    # Define indices for the lines of the cube
    indices = np.array([
        # Front face
        0, 1, 1, 2, 2, 3, 3, 0,
        # Back face
        4, 5, 5, 6, 6, 7, 7, 4,
        # Connecting edges
        0, 4, 1, 5, 2, 6, 3, 7
    ], dtype='i4')

    # Create a Vertex Buffer Object and Element Buffer Object
    vbo = ctx.buffer(vertices.tobytes())
    ebo = ctx.buffer(indices.tobytes())

    # Create a shader program
    prog = ctx.program(
        vertex_shader="""
        #version 330
        uniform mat4 model;
        in vec3 in_vert;
        void main() {
            gl_Position = model * vec4(in_vert, 1.0);
        }
        """,
        fragment_shader="""
        #version 330
        out vec4 fragColor;
        void main() {
            fragColor = vec4(1.0, 1.0, 1.0, 1.0);
        }
        """
    )

    # Create Vertex Array Object
    vao = ctx.vertex_array(prog, [(vbo, '3f', 'in_vert')], ebo)

    # Main loop
    while not glfw.window_should_close(window):
        # Poll for and process events
        glfw.poll_events()

        # Clear the screen
        ctx.clear(0.0, 0.0, 0.0, 1.0)

        # Rotate the cube
        angle = glfw.get_time()  # Use time for animation
        model = Matrix44.from_eulers((angle, angle, angle), dtype='f4')
        prog['model'].write(model.tobytes())

        # Render the cube
        vao.render(moderngl.LINES)

        # Swap front and back buffers
        glfw.swap_buffers(window)

    # Cleanup
    vao.release()
    vbo.release()
    ebo.release()
    prog.release()
    glfw.terminate()

if __name__ == "__main__":
    main()
```

### Key Points:

1. **GLFW** is used to create a window and handle OpenGL context creation.
2. **ModernGL** is used as the OpenGL wrapper, for creating shaders, buffers, and drawing the cube.
3. **Pyrr** is used for matrix operations (specifically, creating transformation matrices). You need to install it, as it is a separate library, using `pip install pyrr`.
4. The cube vertices and indices define the geometry for a wireframe cube.

Once you have all dependencies installed, you can run this script, and a window should open displaying a rotating wireframe cube. The cube rotation is animated by updating the model matrix using the current time.
User: the cube is zoomed in and half rendered , can you make it smaller.
Assistant: