pola-rs/polars · error

table width argument does not fit in u16

Error message

table width argument does not fit in u16

What it means

Error "table width argument does not fit in u16" thrown in pola-rs/polars.

Source

Thrown at crates/polars-core/src/fmt.rs:746

                        } else {
                            break;
                        }
                    }
                }
            } else if height > 0 {
                let dots: Vec<String> = vec![ellipsis; self.width()];
                table.add_row(dots);
            }
            let tbl_fallback_width = 100;
            let tbl_width = std::env::var("POLARS_TABLE_WIDTH")
                .map(|s| {
                    let n = s
                        .parse::<i64>()
                        .expect("could not parse table width argument");
                    let w = if n < 0 {
                        u16::MAX
                    } else {
                        u16::try_from(n).expect("table width argument does not fit in u16")
                    };
                    Some(w)
                })
                .unwrap_or(None);

            // column width constraints
            let col_width_exact =
                |w: usize| ColumnConstraint::Absolute(comfy_table::Width::Fixed(w as u16));
            let col_width_bounds = |l: usize, u: usize| ColumnConstraint::Boundaries {
                lower: Width::Fixed(l as u16),
                upper: Width::Fixed(u as u16),
            };
            let min_col_width = std::cmp::max(5, 3 + padding);
            for (idx, elem_len) in max_elem_lengths.iter().enumerate() {
                let mx = std::cmp::min(
                    str_truncate + ellipsis_len + padding,
                    std::cmp::max(name_lengths[idx], *elem_len),
                );

View on GitHub (pinned to df599052da)

When it happens

Trigger: Thrown at crates/polars-core/src/fmt.rs:746 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of pola-rs/polars@df599052da (2026-08-16). Data as JSON: /api/errors/22d365587af0afe3. Report an issue: GitHub.