10 examples of 'python byte to int' in Python

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9def byte_to_int(byte): # already byte
10 return byte
226def _bytes_to_int(b):
227 return int(codecs.encode(b, "hex"), 16)
115def bytes_to_int(bytes):
116 return reduce(lambda s, x: (s << 8) + x, bytearray(bytes))
42def bytes_to_int(be_bytes):
43 """ Interprets a big-endian sequence of bytes as an integer. """
44 return int(hexlify(be_bytes), 16)
178def bytes_to_int(byte_array):
179 """
180 Converts the provided bytearray in an Integer.
181 This integer is result of concatenate all components of `byte_array`
182 and convert that hex number to a decimal number.
183
184 Args:
185 byte_array (Bytearray): bytearray to convert in integer.
186
187 Returns:
188 Integer: the integer corresponding to the provided bytearray.
189
190 Example:
191 >>> x = bytearray([0xA,0x0A,0x0A]) #this is 0xA0A0A
192 >>> print(bytes_to_int(x))
193 657930
194 >>> b = bytearray([0x0A,0xAA]) #this is 0xAAA
195 >>> print(bytes_to_int(b))
196 2730
197 """
198 if len(byte_array) == 0:
199 return 0
200 return int("".join(["%02X" % i for i in byte_array]), 16)
92def int_from_bytes(mybytes, byteorder='big', signed=False):
93 """
94 Return the integer represented by the given array of bytes.
95 The mybytes argument must either support the buffer protocol or be an
96 iterable object producing bytes. Bytes and bytearray are examples of
97 built-in objects that support the buffer protocol.
98 The byteorder argument determines the byte order used to represent the
99 integer. If byteorder is 'big', the most significant byte is at the
100 beginning of the byte array. If byteorder is 'little', the most
101 significant byte is at the end of the byte array. To request the
102 native byte order of the host system, use `sys.byteorder' as the byte
103 order value.
104 The signed keyword-only argument indicates whether two's complement is
105 used to represent the integer.
106 """
107 if byteorder not in ('little', 'big'):
108 raise ValueError("byteorder must be either 'little' or 'big'")
109 if isinstance(mybytes, unicode):
110 raise TypeError("cannot convert unicode objects to bytes")
111 # mybytes can also be passed as a sequence of integers on Py3.
112 # Test for this:
113 elif isinstance(mybytes, collections.Iterable):
114 mybytes = bytes(mybytes)
115 b = mybytes if byteorder == 'big' else mybytes[::-1]
116 if len(b) == 0:
117 b = b'\x00'
118 # The encode() method has been disabled by newbytes, but Py2's
119 # str has it:
120 num = int(b.encode('hex'), 16)
121 if signed and (b[0] & 0x80):
122 num = num - (2 ** (len(b)*8))
123 return num
171def decodeint(s):
172 return int(binascii.hexlify(s[:32][::-1]), 16)
162def _deserialize_int(bytes):
163 return int.from_bytes(bytes, 'big')
79def bytes_to_int(b): # Read as little endian.
80 fmtmap = {1: 'b', 2: '
34def _from_bytes(value, dummy, _int=int, _hexlify=binascii.hexlify):
35 "An implementation of int.from_bytes for python 2.x."
36 return _int(_hexlify(value), 16)

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