python 3.6.3. zlib compression











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1
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I am trying to Compress a string in python 3.6.3 using zlib, but getting an error(TypeError: a bytes-like object is required, not 'str') , it was supposed to work on python 2.7- versions, here is my simple code:



import zlib

a='hellohellohelloheeloohegregrf'

b=zlib.compress(a)

print(b)





python-3.x compression zlib







share|improve this question


























    up vote
    1
    down vote

    favorite












    I am trying to Compress a string in python 3.6.3 using zlib, but getting an error(TypeError: a bytes-like object is required, not 'str') , it was supposed to work on python 2.7- versions, here is my simple code:



    import zlib
    
a='hellohellohelloheeloohegregrf'
    
b=zlib.compress(a)
    
print(b)





    python-3.x compression zlib







    share|improve this question
























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      I am trying to Compress a string in python 3.6.3 using zlib, but getting an error(TypeError: a bytes-like object is required, not 'str') , it was supposed to work on python 2.7- versions, here is my simple code:



      import zlib
      
a='hellohellohelloheeloohegregrf'
      
b=zlib.compress(a)
      
print(b)





      python-3.x compression zlib







      share|improve this question













      I am trying to Compress a string in python 3.6.3 using zlib, but getting an error(TypeError: a bytes-like object is required, not 'str') , it was supposed to work on python 2.7- versions, here is my simple code:



      import zlib
      
a='hellohellohelloheeloohegregrf'
      
b=zlib.compress(a)
      
print(b)





      python-3.x compression zlib




      python-3.x compression zlib






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked yesterday









      bala bharath

      144




      144
























          1 Answer
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          up vote
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          accepted










          import zlib
          
a='hellohellohelloheeloohegregrf'
          
b=zlib.compress(a.encode("utf-8"))
          
print(b)


          Alternative:



          import zlib
          
a= b'hellohellohelloheeloohegregrf'
          
b=zlib.compress(a)
          
print(b)


          In Python2.x this string literal is called a str object but it's stored as bytes.



          In Python3.x this string literal is a str object and its type is Unicode. So, one need to prefix it with b or use .encode to get bytes object.






          share|improve this answer























          • Thanks bro, its working now :-)
            – bala bharath
            yesterday










          • @balabharath Please accept the answer. :)
            – Chirag
            yesterday











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          active

          oldest

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

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          active

          oldest

          votes








          up vote
          0
          down vote



          accepted










          import zlib
          
a='hellohellohelloheeloohegregrf'
          
b=zlib.compress(a.encode("utf-8"))
          
print(b)


          Alternative:



          import zlib
          
a= b'hellohellohelloheeloohegregrf'
          
b=zlib.compress(a)
          
print(b)


          In Python2.x this string literal is called a str object but it's stored as bytes.



          In Python3.x this string literal is a str object and its type is Unicode. So, one need to prefix it with b or use .encode to get bytes object.






          share|improve this answer























          • Thanks bro, its working now :-)
            – bala bharath
            yesterday










          • @balabharath Please accept the answer. :)
            – Chirag
            yesterday















          up vote
          0
          down vote



          accepted










          import zlib
          
a='hellohellohelloheeloohegregrf'
          
b=zlib.compress(a.encode("utf-8"))
          
print(b)


          Alternative:



          import zlib
          
a= b'hellohellohelloheeloohegregrf'
          
b=zlib.compress(a)
          
print(b)


          In Python2.x this string literal is called a str object but it's stored as bytes.



          In Python3.x this string literal is a str object and its type is Unicode. So, one need to prefix it with b or use .encode to get bytes object.






          share|improve this answer























          • Thanks bro, its working now :-)
            – bala bharath
            yesterday










          • @balabharath Please accept the answer. :)
            – Chirag
            yesterday













          up vote
          0
          down vote



          accepted







          up vote
          0
          down vote



          accepted






          import zlib
          
a='hellohellohelloheeloohegregrf'
          
b=zlib.compress(a.encode("utf-8"))
          
print(b)


          Alternative:



          import zlib
          
a= b'hellohellohelloheeloohegregrf'
          
b=zlib.compress(a)
          
print(b)


          In Python2.x this string literal is called a str object but it's stored as bytes.



          In Python3.x this string literal is a str object and its type is Unicode. So, one need to prefix it with b or use .encode to get bytes object.






          share|improve this answer














          import zlib
          
a='hellohellohelloheeloohegregrf'
          
b=zlib.compress(a.encode("utf-8"))
          
print(b)


          Alternative:



          import zlib
          
a= b'hellohellohelloheeloohegregrf'
          
b=zlib.compress(a)
          
print(b)


          In Python2.x this string literal is called a str object but it's stored as bytes.



          In Python3.x this string literal is a str object and its type is Unicode. So, one need to prefix it with b or use .encode to get bytes object.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited yesterday

























          answered yesterday









          Chirag

          571210




          571210












          • Thanks bro, its working now :-)
            – bala bharath
            yesterday










          • @balabharath Please accept the answer. :)
            – Chirag
            yesterday


















          • Thanks bro, its working now :-)
            – bala bharath
            yesterday










          • @balabharath Please accept the answer. :)
            – Chirag
            yesterday
















          Thanks bro, its working now :-)
          – bala bharath
          yesterday




          Thanks bro, its working now :-)
          – bala bharath
          yesterday












          @balabharath Please accept the answer. :)
          – Chirag
          yesterday




          @balabharath Please accept the answer. :)
          – Chirag
          yesterday


















           

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