Friendly Hash Printing

hashwords.py

import linecache
import math

def wordhash(hash, wordlist="all.short", address_size=4):
	words = []
	for i in range(0, len(hash), address_size):
		hx = "00"
		try:
			hx = hash[i:i+address_size]
		except IndexError as err:
			hx = hash[-address_size:0]

		line = int(hx, 16)
		word = linecache.getline(wordlist, line).strip()
		words += [word]

	return " ".join(words)
		
class FriendlyHash(str):
	def __new__(cls, value, worder=wordhash):
		instance = super().__new__(cls, value)
		instance.__friendly = False
		instance.__text = ""
		return instance

	@property
	def friendly(self):
		if not self.__friendly:
			self.__text = wordhash(self)
			self.__friendly = True
		return self.__text

output.py

>>> f = hashwords.FriendlyHash("7227e226bccd026beb603e866e68175d05922545")
>>> f.friendly
'jobbers thrown sabretache adjunctive unbitting donate insure bobsleds alluding chittered'

I slapped together a function that pulls from a list of 65536 English words to make a more memorable and distinctive (but equally unique!) representation of a SHA-1 hash. This'll be something I work into the Plain Text Workflow, as authors aren't going to want to try and understand long hexidecimal strings.

It'd be nice if I could use memory mapped files, but linecache is going to have to do for this.