Command | Description | Arity | Left | Right | Pythonish Representation ( ): NOP | NA | NA | NA (!): Length of right argument | 1 | NA | Iterable | length(right) : Factorial of right argument | 1 | NA | Number | factorial(right) ("): Start/close string | 0 | NA | NA | NA (#): Comment | NA | NA | NA | NA ($): Sort the right argument | 1 | NA | Iterable | sorted(right) (%): Moduluo of left and right | 2 | Number | Number | left % right : Formats a string | 2 | String | String | left.format(right) (&): Logical and | 2 | Any | Any | left && right ('): ((): Start a list | NA | NA | NA | NA ()): End a list | NA | NA | NA | NA (*): Multiply left and right | 2 | Number | Number | left * right : Repeat left by right times | 2 | Iterable | Number | left * right : Product of iterables | 2 | Iterable | Iterable | list(itertools.product(left, right)) (+): Add left and right | 2 | Number | Number | left + right : Add left and right | 2 | String | String | left + right : Append right to left | 2 | List | Any | left.append(right) (,): Separate list items | 0 | NA | NA | NA (-): (.): (/): (0): Number (1): Number (2): Number (3): Number (4): Number (5): Number (6): Number (7): Number (8): Number (9): Number (:): (;): (<): (=): (>): (?): (@): (A): Absolute value | 1 | NA | Number | abs(right) (B): Binary to base 10 | 1 | NA | Number | int(2, right) (C): Ceiling | 1 | NA | Number | math.ceil(right) (D): Double | 1 | NA | Number | right * 2 (E): Eval | 1 | NA | String | ket_eval(right) (F): Factorise | 1 | NA | Number | find_factors(right) (G): Genrate range from 0 to right (inclusive) | 1 | NA | Number | range(0, right + 1) (H): Halve | 1 | NA | Number | right / 2 (I): If statement | 2* | Expression | Block | if(expression, blocks) (J): Join x by y | 2 | Iterable | String | right.join(left) (K): Constant library | 1 | NA | Character | constants[right] (L): List range | 2 | Number | Number | range(left, right + 1) (M): Map function to iterable | 2 | Iterable | Block | map(right, left) (N): Negate | 1 | NA | Number | right * -1 (O): One-dimensionify a list (flatten) | 1 | NA | Iterable | [item for sublist in l for item in sublist] (P): Permutation | 2 | Iterable | Number | itertools.permutations(left, right) (Q): Quit/terminate program | 0 | NA | NA | exit() (R): Reduce by block | 2 | Iterable | Block | functools.reduce(right, left) (S): Square | 2 | Iterable | Number | textwrap.wrap(left, right) (T): Top of stack | 1 | NA | Iterable | right[0] (U): Uniquify | 1 | NA | Iterable | unique(right) (V): Variable set | 2 | String | Any | left = right (W): While loop | 2 | Expression | Block | While(left, right) (X): Exclude/remove items | 2 | Iterable | Any | list(filter((right).__ne__, left)) (Y): Loop variable (Z): Zip | 2 | Iterable | Iterable | zip(left, right) ([): (\): (]): (^): (_): (`): (a): (b): (c): (d): (e): (f): (g): (h): (i): (j): (k): (l): (m): (n): (o): (p): (q): (r): (s): (t): (u): (v): (w): (x): (y): (z): ({): (|): (}): (~):