Removing u in list

Question

I have read up on remove the character  u  in a list but I am using google app engine and it does not seem to work   def get self       players   db GqlQuery  SELECT   FROM Player       print players     playerInfo            test           for player in players          email    player email         gem    str player gem          a     email   email     gem    gem               test append a        ast literal eval json dumps test       print test   Final output    u  email test gmail com gem 0    u  email test gem 0    u  email test gem 0    u  email test gem 0    u  email test gem 0    u  email test1 gem 0

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Please Use map   python function   Input  In case of list of values  index    u CARBO1004  u CARBO1006  u CARBO1008  u CARBO1009  u CARBO1020    encoded string   map str  index    Output    CARBO1004    CARBO1006    CARBO1008    CARBO1009    CARBO1020    For a Single string input   index   u CARBO1004    Use Any one of the encoding scheme  index encode  utf-8      To utf-8 encoding scheme index encode  ascii    ignore      To Ignore Encoding Errors and set to default scheme   Output   CARBO1004

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For python datasets you can use an index  tmpColumnsSQL     quot show columns in dim date dim quot   hiveCursor execute tmpColumnsSQL  columnlist   hiveCursor fetchall    for columns in jayscolumnlist      print columns 0   for i in range len jayscolumnlist            print columns i  0

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u AB  is just a text representation of the corresponding Unicode string  Here re several methods that create exactly the same Unicode string   L    u AB   u  x41 x42   u  u0041 u0042   unichr 65    unichr 66   print u     join L    Output  AB  AB  AB  AB   There is no u   in memory  It is just the way to represent the unicode object in Python 2  how you would write the Unicode string literal in a Python source code   By default print L is equivalent to print    s          join map repr  L   i e   repr   function is called for each list item   print L print    s          join map repr  L     Output   u AB   u AB   u AB   u AB    u AB   u AB   u AB   u AB     If you are working in a REPL then a customizable sys displayhook is used that calls repr   on each object by default    gt  gt  gt  L    u AB   u  x41 x42   u  u0041 u0042   unichr 65    unichr 66    gt  gt  gt  L  u AB   u AB   u AB   u AB    gt  gt  gt       join L  u AB  AB  AB  AB   gt  gt  gt  print      join L  AB  AB  AB  AB   Don t encode to bytes  Print unicode directly     In your specific case  I would create a Python list and use json dumps   to serialize it instead of using string formatting to create JSON text      usr bin env python2 import json       test    dict email player email  gem player gem          for player in players  print test print json dumps test    Output     email   u test gmail com    gem   0     email   u test    gem   0     email   u test    gem   0     email   u test    gem   0     email   u test    gem   0     email   u test1    gem   0      email    test gmail com    gem   0     email    test    gem   0     email    test    gem   0     email    test    gem   0     email    test    gem   0     email    test1    gem   0

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That  u  is part of the external representation of the string  meaning it s a Unicode string as opposed to a byte string  It s not in the string  it s part of the type   As an example  you can create a new Unicode string literal by using the same synax  For instance    gt  gt  gt  sandwich   u sm  rg  s   gt  gt  gt  sandwich u sm xf6rg xe5s    This creates a new Unicode string whose value is the Swedish word for sandwich  You can see that the non-English characters are represented by their Unicode code points     is  xf6 and    is  xe5  The  u  prefix appears just like in your example to signify that this string holds Unicode text   To get rid of those  you need to encode the Unicode string into some byte-oriented representation  such as UTF-8  You can do that with e g     gt  gt  gt  sandwich encode  utf-8    sm xc3 xb6rg xc3 xa5s    Here  we get a new string without the prefix  u   since this is a byte string  It contains the bytes representing the characters of the Unicode string  with the Swedish characters resulting in multiple bytes due to the wonders of the UTF-8 encoding

User · Answer

arr    str r  for r in arr    This basically converts all your elements in string  Hence removes the encoding  Hence the u which represents encoding gets removed Will do the work easily and efficiently

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u  email test gmail com gem 0    u  email test gem 0    u  email test gem 0    u  email test gem 0    u  email test gem 0    u  email test1 gem 0       u  denotes unicode characters  We can easily remove this with map function on the final list element  map str  test    Another way is when you are appending it to the list  test append str a

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The u means the strings are unicode   Translate all the strings to ascii to get rid of it   a encode  ascii    ignore

User · Answer

You don t  remove the character  u  from a list   you encode Unicode strings  In fact the strings you have are perfectly fine for most uses  you will just need to encode them appropriately before outputting them

[python] Removing u in list

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