Customise list printing

[tekumara]

Is it possible to customise the behaviour of list printing?

Current behaviour:

>>> from rich.console import Console
>>> console = Console()
>>> console.print(["a", "b", "c"])
['a', 'b', 'c']

Instead I'd like to print the list with each element on a new line, eg:

a
b
c

[geekya215]

you should unpack the list parameter, and set the default separator to \n

console.print(*["a", "b", "c"], sep='\n')

get more detailed information from here

[tekumara]

Thank you, yes that would work... Is there a way to do this when printing a table cell? I simplified the problem a little bit when describing it above.

[geekya215]

Can you give me some examples?

[tekumara]

Say I have a list of fruits, eg: fruit = ["apricot", "banana"] ... I'd like to display them in a single cell each on its own line, eg:

      examples       
┏━━━━━━━━┳━━━━━━━━━━┓
┃ name   ┃ examples ┃
┡━━━━━━━━╇━━━━━━━━━━┩
│ fruits │ apricot  │
│        │ banana   │
└────────┴──────────┘

One way I guess, it is turn the list into a str first, eg:

from rich.console import Console
from rich.table import Table

table = Table(title="example")
table.add_column("name")
table.add_column("examples")

fruit = ["apricot", "banana"]
table.add_row("fruits", "\n".join(fruit))

console = Console()
console.print(table)

But I wondered if Rich has a style or some other method for customising the rendering of lists in table cells.

[geekya215]

I think if you want to to display multiple similar elements in the same cell, a more appropriate way is to put them in multiple cells.

But I wondered if Rich has a style or some other method for customising the rendering of lists in table cells.

The easiest way to render a list into multiple lines is to convert it to str, otherwise you need to implement the __rich__ or __rich_console__ methods for the list object. You can refer to the following information to customize the rendering logic of list.

• Console Protocol
• add_row in rich/table.py
• print in rich/console.py