Python conversion from binary string to hexadecimal

Question

How can I perform a conversion of a binary string to the corresponding hex value in Python   I have 0000 0100 1000 1101 and I want to get 048D I m using Python 2 6

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Using no messy concatenations and padding       0 width x   format int temp 2    width 4    Will give a hex representation with padding preserved

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This overview can be useful for someone  bin  dec  hex in python to convert between bin  dec  hex in python   I would do   dec str   format int  0000010010001101   2   x   dec str rjust 4  0     Result   048d

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For whatever reason I have had issues with some of these answers  I ve went and written a couple helper functions for myself  so if you have problems like I did  give these a try   def bin string to bin value input      highest order   len input  - 1    result   0    for bit in input        result   result   int bit    pow 2 highest order        highest order   highest order - 1    return bin result   def hex string to bin string input      lookup     0     0000    1     0001    2     0010    3     0011    4     0100    5     0101    6     0110    7     0111    8     1000    9     1001    A     1010    B     1011    C     1100    D     1101    E     1110    F     1111      result         for byte in input        result    result   lookup byte     return result def hex string to hex value input      bin string   hex string to bin string input     bin value   bin string to bin value bin string     return hex int bin value  2     They seem to work well   print hex string to hex value  FF   print hex string to hex value  01234567   print bin string to bin value  11010001101011     results in   0xff 0x1234567 0b11010001101011

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Assuming they are grouped by 4 and separated by whitespace  This preserves the leading 0   b    0000 0100 1000 1101  h      join hex int a  2   2   for a in b split

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On python3 using the hexlify function   import binascii def bin2hex str1       bytes str   bytes str1   utf-8       return binascii hexlify bytes str   a  abc123  c bin2hex a  c   Will give you back   b 616263313233    and you can get the string of it like   c decode  utf-8     gives    616263313233

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Use python s binascii module  import binascii  binFile   open  somebinaryfile exe   rb   binaryData   binFile read 8   print binascii hexlify binaryData

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To convert binary string to hexadecimal string  we don t need any external libraries  Use formatted string literals  known as f-strings   This feature was added in python 3 6  PEP 498    gt  gt  gt  bs    0000010010001101   gt  gt  gt  hexs   f  int bs  2  X    gt  gt  gt  print hexs   gt  gt  gt   48D    If you want hexadecimal strings in small-case  use small  x  as follows  f  int bs  2  x     Where bs inside f-string is a variable which contains binary strings assigned prior  f-strings are lost more useful and effective  They are not being used at their full potential

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int given base 2 and then hex    gt  gt  gt  int  010110   2  22  gt  gt  gt  hex int  010110   2    0x16   gt  gt  gt     gt  gt  gt  hex int  0000010010001101   2    0x48d    The doc of int    int x   base   - gt  integer  Convert a string or number to an integer  if possible   A floating       point       argument will be truncated towards zero  this does not include a string       representation of a floating point number    When converting a string    use       the optional base   It is an error to supply a base when converting a       non-string   If base is zero  the proper base is guessed based on the       string content   If the argument is outside the integer range a       long object will be returned instead    The doc of hex    hex number  - gt  string  Return the hexadecimal representation of an integer or long       integer

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format int bits  2    0    str len bits    4     x

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Converting Binary into hex without ignoring leading zeros   You could use the format   built-in function like this     0 0 gt 4X   format int  0000010010001101   2

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bstr    0000 0100 1000 1101  replace          hstr     0 X      len bstr    3     4  int bstr  2

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x   int input  press 1 for dec to oct bin hex  n press 2 for bin to dec hex oct  n press 3 for oct to bin hex dec  n press 4 for hex to bin dec oct  n         if x is 1     decimal  int input  Enter the decimal number         print bin decimal   in binary     print oct decimal   in octal        print hex decimal   in hexadecimal           if x is 2          binary   input  Enter number in Binary Format         decimal   int binary  2     print binary  in Decimal    decimal     print binary  in Hexadecimal    hex decimal      print binary  in octal    oct decimal         if x is 3         octal   input  Enter number in Octal Format             decimal   int octal  8         print octal  in Decimal    decimal         print octal  in Hexadecimal    hex decimal          print octal  in Binary    bin decimal               if x is 4            hex   input  Enter number in hexa-decimal Format             decimal   int hex  16           print hex  in Decimal    decimal         print hex  in octal    oct decimal            print hex  in Binary    bin decimal

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gt  gt  gt  import string  gt  gt  gt  s  0000 0100 1000 1101   gt  gt  gt     join     x  string atoi bin 2  for bin in s split         048d   gt  gt  gt    or   gt  gt  gt  s  0000 0100 1000 1101   gt  gt  gt  hex string atoi s replace         2    0x48d

[python] Python conversion from binary string to hexadecimal

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