Is there a Python library that packs binary data into one file?

[Max M]

Jacob H wrote:

> Hello all,
> 
> Today I began writing a utility script that takes given binary files
> and puts them all into one datafile. My idea is to be able to access
> any binary data I want by indexing the datafile, e.g.
> wanted_image_data = datafileobj[IMAGE_DATA]. The purpose is to hide
> external image files from the user in a simple game I'm writing.


What you need, is a simple pickle of a dictionary save to disk.

It's dead easy, and does exactly what you want.

import cPickle

some_dict = {'my':'name','is':'norman','bates':'!'}
file_name = 'some.dict'

f = open(file_name, 'wb')
cPickle.dump(some_dict, f, -1)
f.close()

f = open(file_name, 'rb')
c = cPickle.load(f)
f.close()

print c

 >>{'my': 'name', 'is': 'norman', 'bates': '!'}


"
3.14 pickle -- Python object serialization

The pickle module implements a fundamental, but powerful algorithm for 
serializing and de-serializing a Python object structure. ``Pickling'' 
is the process whereby a Python object hierarchy is converted into a 
byte stream, and ``unpickling'' is the inverse operation, whereby a byte 
stream is converted back into an object hierarchy. Pickling (and 
unpickling) is alternatively known as ``serialization'', 
``marshalling,''3.2 or ``flattening'', however, to avoid confusion, the 
terms used here are ``pickling'' and ``unpickling''.

This documentation describes both the pickle module and the cPickle module.
"



regards Max M