Speed of console.print with rich.table.Table

I spent some time porting some code which displays tabular data from using the tabulate library to using rich. The table has just less than 300 rows, so in most cases we would consider this not a lot of data.

Using cProfile, I can see the time for the call to a function print_table has blown out from 0.067s to 1.241s. I get similar numbers on each test.

My questions are: is this expected? And, am I doing something obviously wrong?

Code for reference:

(For the record it’s not the df.iterrows() call which is slow, the profiling shows venv/lib/python3.9/site-packages/rich/console.py::1545::print as the culprit.)

With tabulate:

def print_table(df: pd.DataFrame):
    '''Helper to pretty print dataframes'''
    click.echo(tabulate(df, headers='keys', tablefmt='psql'))

With rich:

def print_table(df: pd.DataFrame):
    '''Helper to pretty print dataframes'''
    table = Table()

    # Add the index column header
    table.add_column(df.index.name)

    # Include all remaining column headers
    for col in df.columns.to_list():
        table.add_column(col)

    # Add rows from the passed DataFrame
    for index, row in df.iterrows():
        table.add_row(index, *[str(x) for x in row.to_list()])

    # Render table
    console.print(table)

[mafrosis]

This issue was evidently heading towards a straight close, but I have to disagree with your logic. A git show can render thousands of lines of parsed, coloured text in milliseconds. I don’t need to be a movie character to find this useful.

Sure the comparison is not apples to apples, but your dismissal of my report is a little sad.

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