Python parse binary file struct

Some readers may also be interested in reading the answers to the question Fastest way to read a binary file with a defined format? I get the following error when I try to use your suggestion: struct. Sorry I am new to python. This can be because the file has some sort of header or trailer, in it as well as the data that comprises the array of structures or it's corrupt. Show 1 more comment. Use the struct module ; you need to define the types in a string format documented with that library: struct.

Trilarion 9, 9 9 gold badges 60 60 silver badges 97 97 bronze badges. It seems this does not work on data larger than the struct size. My binary data repeats itself. Is there a way of putting the last into an actual array, such that the output is in the form of what I put in my original post? You'll have to pass the resulting string to that type manually, struct cannot do that for you.

It's byte array. I've edited the answer to show my solution. However, is there a list comprehension to accomplish the same? Show 2 more comments.

Vincenzooo 1, 1 1 gold badge 15 15 silver badges 24 24 bronze badges. Offsetof k else: res. Structure: break res. Attr if notype: return [k for k, v in functools.

DType : if re. You can refer to the below screenshot for the output. To get the output, print line is used and lastly to close the file, I have used file. To get the output, I have used print np. The below screenshot shows the output. To read the CSV file, I have opened the file lock. To get the output I have used print row.

In this tutorial we have learned about Python read a binary file, also we have covered these topics:. Entrepreneur, Founder, Author, Blogger, Trainer, and more. Check out my profile. This entry was posted on Friday, December 6th, at am and is filed under Uncategorized. You can follow any comments to this entry through the RSS 2. Both comments and pings are currently closed. Have you looked at the ctypes module?

It includes Struct and Union types that take a list of fields one list of pairs rather than two lists. It supports composition Struct and Union types can be used as fields in other Struct and Union types. Structure or similar out of a byte buffer. And it looks like ctypes only deals with native endian datatypes, whereas struct.

There are types for big-endian and little-endian structures and unions, in addition to the default native-endian.