Generate a (US) ascii table on your terminal.

ascii.py

#!/usr/bin/env python3

import sys

out = sys.stdout

control_codes = [
        ("NUL", "Null"),
        ("SOH", "Start of Heading"),
        ("STX", "Start of Text"),
        ("ETX", "End of Text"),
        ("EOT", "End of Transmission"),
        ("ENQ", "Enquiry"),
        ("ACK", "Acknowledgement"),
        ("BEL", "Bell"),
        ("BS",  "Backspace"),
        ("HT",  "Horizontal Tab"),
        ("LF",  "Line Feed"),
        ("VT",  "Vertical Tab"),
        ("FF",  "Form Feed"),
        ("CR",  "Carriage Return[g]"),
        ("SO",  "Shift Out"),
        ("SI",  "Shift In"),
        ("DLE", "Data Link Escape"),
        ("DC1", "Device Control 1 (often XON)"),
        ("DC2", "Device Control 2"),
        ("DC3", "Device Control 3 (often XOFF)"),
        ("DC4", "Device Control 4"),
        ("NAK", "Negative Acknowledgement"),
        ("SYN", "Synchronous Idle"),
        ("ETB", "End of Transmission Block"),
        ("CAN", "Cancel"),
        ("EM",  "End of Medium"),
        ("SS",  "Substitute"),
        ("ESC", "Escape"),
        ("FS",  "File Separator"),
        ("GS",  "Group Separator"),
        ("RS",  "Record Separator"),
        ("US",  "Unit Seprator"),
]
delete=("DEL",  "Delete")

def strings():
        for k in range(0,32):
                yield " %4d %3x  %-3s" % (k, k, control_codes[k][0])
        for k in range(32,127):
                yield " %4d %3x  '%c'" % (k, k, k)
        k = k+1
        yield " %4d %3x  %s" % (k, k, delete[0])

def wstrings(n):
        p = "%%%ds" % n
        for s in strings():
                s = p % s
                assert len(s) == n
                yield s

def reshape(arr, stride, w):
        k = 0
        n = len(arr)
        while k + stride * (w-1) < n:
                yield tuple(arr[k+stride*j] for j in range(0,w))
                k += 1

l = list(wstrings(20))
assert len(l) == 128

for t in reshape(l, 32, 4):
        print(''.join(t))