How to read bytes in python
I'm trying to read a file byte by byte, but I'm not sure how to do that. I'm trying to do it like that: Show
So does that make the variable byte to contain 8 next bits at the beginning of every loop? It doesn't matter what those bytes really are. The only thing that matters is that I need to read a file in 8-bit stacks. EDIT: Also I collect those bytes in a list and I would like to print them so that they don't print out as ASCII characters, but as raw bytes i.e. when I print that bytelist it gives the result as
skaffman 393k96 gold badges805 silver badges764 bronze badges asked May 20, 2010 at 9:14
4
To read one byte:
8 bits is one byte. answered May 20, 2010 at 9:16
Mark ByersMark Byers 778k182 gold badges1551 silver badges1440 bronze badges 2 To answer the second part of your question, to convert to binary you can use a format string and the
Note that the format pads with the right number of leading zeros, which seems to be your requirement. This method needs Python 2.6 or later. answered May 20, 2010 at 14:37
Scott GriffithsScott Griffiths 20.9k8 gold badges54 silver badges84 bronze badges The code you've shown will read 8 bytes. You could use
answered May 20, 2010 at 9:17
kennytmkennytm 496k100 gold badges1059 silver badges994 bronze badges There's a python module especially made for reading and writing to and from binary encoded data called 'struct'. Since versions of Python under 2.6 doesn't support str.format, a custom method needs to be used to create binary formatted strings.
answered Aug 24, 2011 at 12:00
2 Late to the party, but this may help anyone looking for a quick solution: you can use Cheers answered May 26, 2014 at 12:11
e-nourie-nouri 2,5061 gold badge20 silver badges34 bronze badges Not the answer you're looking for? Browse other questions tagged python file-io byte or ask your own question.How do you calculate bytes in Python?Use the len() function to get the length of a bytes object, e.g. len(my_bytes) . The len() function returns the length (the number of items) of an object and can be passed a sequence (a bytes, string, list, tuple or range) or a collection (a dictionary, set, or frozen set).
How does Python read binary data?To open a file in binary format, add 'b' to the mode parameter. Hence the "rb" mode opens the file in binary format for reading, while the "wb" mode opens the file in binary format for writing. Unlike text files, binary files are not human-readable. When opened using any text editor, the data is unrecognizable.
How do you decode a binary file in Python?Python read a binary file into a byte array. In this example, I have opened a file called sonu. bin and “rb” mode is used to read a binary file, and sonu. bin is the name of the file. ... . The byte = file. read(3) is used to read the file, and file. ... . The while loop is used to read and iterate all the bytes from the file.. |