# 10 examples of 'python binary to int' in Python

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 226 def _bytes_to_int(b): 227 return int(codecs.encode(b, "hex"), 16)
 56 def bin2int(N): 57 58 L = int(len(str(N))) #將輸入的二進位數字變成字串並數出他的長度 59 A = 0 #設定兩個變數，其中A是用來計算最後的答案，K是用來計算迴圈運行的次數以及作為2的指數 60 K = 0 61 while L > K : #設定迴圈條件，當執行的次數等於輸入的二進位數字長度後，便不再執行迴圈 62 r = int(N%10) #設定一個變數r,使其成為當前二進位數最右邊的數的值 63 A = A + (2**K)*r #計算當前所得到的數的總和 64 N = N/10 #將當前二進位數最右邊的數值去掉 65 K = K + 1 #執行次數加1 66 67 str(A) #將最後的答案轉換成字串形式 68 return A
 36 def frombin(v): 37 """MSB to LSB binary form""" 38 return int("".join(map(str, v)), 2 )
 42 def bytes_to_int(be_bytes): 43 """ Interprets a big-endian sequence of bytes as an integer. """ 44 return int(hexlify(be_bytes), 16)
 92 def 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
 79 def bytes_to_int(b): # Read as little endian. 80 fmtmap = {1: 'b', 2: '
 42 def intlist_to_binary(intlist): 43 '''Convert a list of integers to a binary string type''' 44 return bytes(intlist)
 115 def bytes_to_int(bytes): 116 return reduce(lambda s, x: (s << 8) + x, bytearray(bytes))
 162 def _deserialize_int(bytes): 163 return int.from_bytes(bytes, 'big')
 171 def decodeint(s): 172 return int(binascii.hexlify(s[:32][::-1]), 16)