Split Bytearray into separate Files by Hex delimter - Printable Version +- Python Forum (https://python-forum.io) +-- Forum: Python Coding (https://python-forum.io/forum-7.html) +--- Forum: General Coding Help (https://python-forum.io/forum-8.html) +--- Thread: Split Bytearray into separate Files by Hex delimter (/thread-39560.html) |
Split Bytearray into separate Files by Hex delimter - lastyle - Mar-08-2023 Hi all i am loading a file into a byte aray with f = open("myfile.seq", 'rb') while True: binarycontent = f.read(-1) if not binarycontent: break print(binarycontent) after that has been loaded i like to split that array by hex value $93 and save the splits to disk. Searching the forum just lead me to solutions with fixed lenghts, how should i split that array into parts ? RE: Split Bytearray into separate Files by Hex delimter - bowlofred - Mar-08-2023 Bytearray has a split() method, so you can separate by a hex value.>>> a = bytearray(b'hello\x93there\x93'*4) >>> a bytearray(b'hello\x93there\x93hello\x93there\x93hello\x93there\x93hello\x93there\x93') >>> a.split(b'\x93') [bytearray(b'hello'), bytearray(b'there'), bytearray(b'hello'), bytearray(b'there'), bytearray(b'hello'), bytearray(b'there'), bytearray(b'hello'), bytearray(b'there'), bytearray(b'')] RE: Split Bytearray into separate Files by Hex delimter - deanhystad - Mar-08-2023 Splitting the array into parts is easy (use split()). But how do you save the chunks? if you write the chunks to a binary file how do you delimit the chunks? It is not like a text file where there is a default delimiter ('\n'). Do you plan to write each chunk to a different file? If you write them all back to the same file, using a delimiter to separate, what is the advantage over not splitting up the file in the first place? Just re-read the title. Writing chunks to different files. Nevermind. RE: Split Bytearray into separate Files by Hex delimter - lastyle - Mar-08-2023 (Mar-08-2023, 09:15 PM)deanhystad Wrote: Splitting the array into parts is easy (use split()). But how do you save the chunks? if you write the chunks to a binary file how do you delimit the chunks? It is not like a text file where there is a default delimiter ('\n'). Do you plan to write each chunk to a different file? If you write them all back to the same file, using a delimiter to separate, what is the advantage over not splitting up the file in the first place? I dont want to write them Back to the Same File. Goal ist to have multiple Files ofcourse. If there is a way to Split then without loading into Array that would work too. RE: Split Bytearray into separate Files by Hex delimter - lastyle - Mar-09-2023 What i still dont understand is how do i save the split contents to files with ascending filenames. Somehow i always save the whole array instad of the split chunks RE: Split Bytearray into separate Files by Hex delimter - bowlofred - Mar-09-2023 (Mar-09-2023, 12:30 AM)lastyle Wrote: What i still dont understand is how do i save the split contents to files with ascending filenames. Somehow i always save the whole array instad of the split chunks Loop over the output of the split. Within the loop open a new writable file. Write the data to the file. Give it a try and show us the code you've got so far. |