PyOpenGL documentation becomes much easier to use when you remember that a function can exist in Python but still be unavailable in your current OpenGL context. Read the binding reference together with the OpenGL version, profile and driver information reported by your running application.
Start with the exact symbol
Write down the exact module, function and constant you are using. Similar names may belong to different OpenGL versions or extensions, so make sure the example and your import path refer to the same symbol.
Pay attention to parameter meaning
OpenGL parameters may represent counts, bytes, offsets, object names or typed arrays. Check what must be bound before the call and whether data needs to remain alive after the function returns.
version = glGetString(GL_VERSION)
renderer = glGetString(GL_RENDERER)
print(version, renderer)
Check the context version and profile
A compatibility profile may support older calls that are missing from a modern core profile. Query the active context instead of assuming that code from an older tutorial will work unchanged.
Let logs guide your reading
Shader compile logs, program link logs and OpenGL errors often explain what a short example leaves out. Keep these checks visible while learning and during development.
Keep notes for your own project
Record the toolkit, OpenGL version, object binding order and cleanup rules used by your project. A small personal reference can save more time than repeatedly searching for the same detail.