While it’s generally considered to be bad practice to import everything into the global namespace, I think it’s fine to do this in an ad-hoc environment such as a notebook as it makes using the many functions plotnine provides more convenient. An additional advantage is that the resulting code more closely resembles the original ggplot2 code. Alternatively, it’s quite common to `import plotnine as p9` and prefix every function with `p9`.
Disclaimer: I made the plotnine homepage and cheatsheet.
The issue I find with this pattern in docs/tutorials is that the prefix makes it very obvious which functions are from this library.
It's particularly worthwhile when looking at the bigger examples that might involve another library, or stdlib functions/libs I haven't dealt with before
To each his own. Some drawbacks here are that it means that if you want to copy the code in, you have to add all the “p9”s. And, if you want to make a more complicated demo, with maybe a second import, you now have multiple conventions in your demo codebase.