including big file contents in python source

[Skaperen]

i have a couple use cases where i need to include some big file contents. because these use cases are very complex and have too many things going on to sanely discuss them here, i will, instead, present a simplistic useless case; the kind of thing you might see in a classroom environment.
file (
here is that overly simplistic purpose. i need to create a python source file the is a means to transport a big file contents so that running the script "unpacks" the file to where the program is run.

the question i need to ask points to this simplistic purpose. what is the the best way to efficiently put a big (a few kilobytes to a few megabytes) file contents into python source code, so that, in the simplistic case, with included logic code, invoking the script can write that contents to a file.

my first thought is to have many lines of continued concatenated string with data in base 16, base 64, or base 85. any other ideas?

[Gribouillis]

You can also use uuencode

import urllib.request, codecs
table = bytes.maketrans(b'\\"', b'xy')
invtable = bytes.maketrans(b'xy', b'\\"')

def to_literal(bdata):
    s = codecs.encode(bdata, 'uu').translate(table).decode()
    return 'b"""' + s + '"""'

def from_literal(data):
    s = eval(data).translate(invtable)
    return codecs.decode(s, 'uu')

s = urllib.request.urlopen('https://www.w3.org').read()
print(to_literal(s))
assert s == from_literal(to_literal(s))

[Skaperen]

uuencode has single and double quotes in it. that can make it hard to use in source literals. but base85 doesn't have either.