Mercurial > public > bitcaviar-plus
comparison src/helpers.py @ 0:2327b9eda10f
first commit
| author | Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com> |
|---|---|
| date | Thu, 14 Oct 2021 21:42:10 +0200 |
| parents | |
| children | 5b16e6df6a59 |
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| -1:000000000000 | 0:2327b9eda10f |
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| 1 def read_bytes(file, number_of_bytes, bytes_order='backward'): | |
| 2 """ | |
| 3 Read bytes from buffer | |
| 4 :param file: <class '_io.BufferedReader'>, required | |
| 5 :param number_of_bytes: int, required | |
| 6 :param bytes_order: string, 'backward' or 'forward', required | |
| 7 :return: string | |
| 8 """ | |
| 9 | |
| 10 # More info about bytes order: https://en.wikipedia.org/wiki/Endianness | |
| 11 | |
| 12 b = file.read(number_of_bytes) | |
| 13 if bytes_order == 'backward': | |
| 14 b = b[::-1] | |
| 15 | |
| 16 b = b.hex().upper() | |
| 17 | |
| 18 return b |