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annotate src/helpers.py @ 0:2327b9eda10f

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author Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
date Thu, 14 Oct 2021 21:42:10 +0200
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children 5b16e6df6a59
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
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1 def read_bytes(file, number_of_bytes, bytes_order='backward'):
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Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
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2 """
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3 Read bytes from buffer
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4 :param file: <class '_io.BufferedReader'>, required
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Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
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5 :param number_of_bytes: int, required
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6 :param bytes_order: string, 'backward' or 'forward', required
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7 :return: string
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8 """
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9
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10 # More info about bytes order: https://en.wikipedia.org/wiki/Endianness
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11
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12 b = file.read(number_of_bytes)
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13 if bytes_order == 'backward':
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14 b = b[::-1]
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15
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16 b = b.hex().upper()
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17
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18 return b