How to delete a character from a string using Python

Question

There is a string  for example  EXAMPLE   How can I remove the middle character  i e   M from it  I don t need the code  I want to know    Do strings in Python end in any special character  Which is a better way - shifting everything right to left starting from the middle character OR creation of a new string and not copying the middle character

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You can simply use list comprehension   Assume that you have the string  my name is and you want to remove character m  use the following code      join  x for x in  my name is  if x is not  m

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If you want to delete ignore characters in a string  and  for instance  you have this string     11 L 0    from a web API response or something like that  like a CSV file  let s say you are using requests  import requests udid   123456 url    http   webservices yourserver com action id-    udid s   requests Session   s verify   False resp   s get url  stream True  content   resp content   loop and get rid of unwanted chars   for line in resp iter lines      line   line replace            line   line replace            line   line replace            Optional split  and you will be able to read values individually   listofvalues   line split        Now accessing each value is easier   print listofvalues 0  print listofvalues 1  print listofvalues 2    This will print          11          L          0

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card   random choice cards  cardsLeft   cards replace card      1    How to remove one character from a string  Here is an example where there is a stack of cards represented as characters in a string  One of them is drawn  import random module for the random choice   function  that picks a random character in the string   A new string  cardsLeft  is created to hold the remaining cards given by the string function replace   where the last parameter indicates that only one  card  is to be replaced by the empty string

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Strings are immutable  But you can convert them to a list  which is mutable  and then convert the list back to a string after you ve changed it   s    this is a string   l   list s     convert to list  l 1             delete  letter h  the item actually still exists but is empty  l 1 2          really delete letter h  the item is actually removed from the list  del l 1        another way to delete it  p   l index  a      find position of the letter  a  del l p             delete it  s      join l     convert back to string   You can also create a new string  as others have shown  by taking everything except the character you want from the existing string

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In Python  strings are immutable  so you have to create a new string   You have a few options of how to create the new string   If you want to remove the  M  wherever it appears   newstr   oldstr replace  M         If you want to remove the central character   midlen   len oldstr  2       2 in python 3 newstr   oldstr  midlen    oldstr midlen 1     You asked if strings end with a special character   No  you are thinking like a C programmer   In Python  strings are stored with their length  so any byte value  including  0  can appear in a string

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Use the translate   method    gt  gt  gt  s    EXAMPLE   gt  gt  gt  s translate None   M    EXAPLE

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Another way is with a function   Below is a way to remove all vowels from a string  just by calling the function  def disemvowel s       return s translate None   aeiouAEIOU

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How can I remove the middle character  i e   M from it    You can t  because strings in Python are immutable      Do strings in Python end in any special character    No  They are similar to lists of characters  the length of the list defines the length of the string  and no character acts as a terminator      Which is a better way - shifting everything right to left starting from the middle character OR creation of a new string and not copying the middle character    You cannot modify the existing string  so you must create a new one containing everything except the middle character

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Here s what I did to slice out the  M    s    EXAMPLE  s1   s  s index  M      s s index  M   1

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Strings are immutable in Python so both your options mean the same thing basically

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from random import randint   def shuffle word word       newWord        for i in range 0 len word            pos randint 0 len word -1          newWord    word pos          word   word  pos  word pos 1       return newWord  word    Sarajevo  print shuffle word word

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To delete a char or a sub-string once  only the first occurrence           main string   main string replace sub str  replace with  1    NOTE  Here 1 can be replaced with any int for the number of occurrence you want to replace

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UserString MutableString  Mutable way   import UserString  s   UserString MutableString  EXAMPLE     gt  gt  gt  type s   lt type  str  gt     Delete  M  del s 3     Turn it for immutable  s   str s

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To replace a specific position   s   s  pos    s  pos 1      To replace a specific character   s   s replace  M

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def kill char string  n     n   position of which character you want to remove     begin   string  n       from beginning to n  n not included      end   string n 1        n 1 through end of string     return begin   end print kill char  EXAMPLE   3      M  removed   I have seen this somewhere here

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This is probably the best way   original    EXAMPLE  removed   original replace  M         Don t worry about shifting characters and such  Most Python code takes place on a much higher level of abstraction

[python] How to delete a character from a string using Python

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