combine a binary file and a .txt file to a single file in python

Question

I have a binary file (.bin) and a (.txt) file. Using Python3, is there any way to combine these two files into one file (WITHOUT using any compressor tool if possible)?
And if I have to use a compressor, I want to do this with python.
As an example, I have 'file.txt' and 'file.bin', I want a library that gets these two and gives me one file, and also be able to un-merge the file.
Thank you

I just want my program to output one file. so i want to stick them together and be able to separate them again — Erfan Sh.z., Jan 01 '14 at 14:43
there are as much solutions to this problem as much compression-libs are on the market for python! have you tried any of them? — LPH, Jan 01 '14 at 14:51
I dont want to compress files,I just want to put them in one file without decreasing their sizes.My program is a Huffman encrypter itself! — Erfan Sh.z., Jan 01 '14 at 14:58

score 0 · Accepted Answer · edited May 23 '17 at 12:19

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Just create a tar archive, a module that let's you accomplish this task is already bundled with Cpython, and it's called tarfile.

more examples here.

edited May 23 '17 at 12:19

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answered Jan 01 '14 at 14:44

user2485710

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thank you, but I dont want any library to compress my files, actually my program is meant to compress a .txt file! – Erfan Sh.z. Jan 01 '14 at 14:54
@ErfanSharafzadeh it's a module that comes with a standard python interpreter, there is no use of no "extra" library here . – user2485710 Jan 01 '14 at 14:56
It seems I got my answer,that's it.Thanks again! – Erfan Sh.z. Jan 01 '14 at 15:10

score 0 · Answer 2 · answered Jan 01 '14 at 14:46

there are a lot of solutions for compressing! gzip or zlib would allows compression and decompression and could be a solution for your problem.

Example of how to GZIP compress an existing file from [http://docs.python.org]:

import gzip
f_in = open('file.txt', 'rb')
f_out = gzip.open('file.txt.gz', 'wb')
f_out.writelines(f_in)
f_out.close()
f_in.close()

but also tarfile is a good solution!

score 0 · Answer 3 · edited May 23 '17 at 12:11

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Tar's the best solution to get binary file. If you want the output to be a text, you can use base64 to transform binary file into a text data, then concatenate them into one file (using some unique string (or other technique) to mark the point they were merged).

edited May 23 '17 at 12:11

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answered Jan 01 '14 at 14:56

Satanowski

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I don't need to merge them because it increases the output file size(which is very important in my case) – Erfan Sh.z. Jan 01 '14 at 15:04

combine a binary file and a .txt file to a single file in python

3 Answers3