How to strip a specific word from a string

Question

I need to strip a specific word from a string   But I find python strip method seems can t recognize an ordered word  The just strip off any characters passed to the parameter   For example    gt  gt  gt  papa    papa is a good man   gt  gt  gt  app    app is important   gt  gt  gt  papa lstrip  papa     is a good man   gt  gt  gt  app lstrip  papa     is important    How could I strip a specified word with python

User · Answer

A bit  lazy  way to do this is to use startswith- it is easier to understand this rather regexps  However regexps might work faster  I haven t measured   gt  gt  gt  papa    quot papa is a good man quot   gt  gt  gt  app    quot app is important quot   gt  gt  gt  strip word    papa   gt  gt  gt  papa len strip word    if papa startswith strip word  else papa   is a good man   gt  gt  gt  app len strip word    if app startswith strip word  else app  app is important

User · Answer

If want to remove the word from only the start of the string  then you could do    string string startswith prefix  and len prefix       Where string is your string variable and prefix is the prefix you want to remove from your string variable  For example     gt  gt  gt  papa    quot papa is a good man  papa is the best  quot       gt  gt  gt  prefix    papa     gt  gt  gt  papa papa startswith prefix  and len prefix        is a good man  papa is the best

User · Answer

Easiest way would be to simply replace it with an empty string   s   s replace  papa

User · Answer

You can also use a regexp with re sub   article title str   re sub r   s -     s Times of India  s -     s the Times of India  s -     s  Gadgets No                               article title str  flags re IGNORECASE

User · Answer

Providing you know the index value of the beginning and end of each word you wish to replace in the character array  and you only wish to replace that particular chunk of data  you could do it like this     gt  gt  gt  s    papa is papa is papa   gt  gt  gt  s   s  8  s 8 13  replace  papa    mama   s 13    gt  gt  gt  print s  papa is mama is papa   Alternatively  if you also wish to retain the original data structure  you could store it in a dictionary    gt  gt  gt  bin       gt  gt  gt  s    papa is papa is papa   gt  gt  gt  bin  0     s  gt  gt  gt  s   s  8  s 8 13  replace  papa    mama   s 13    gt  gt  gt  print bin  0    papa is papa is papa  gt  gt  gt  print s  papa is mama is papa

User · Answer

Use str replace    gt  gt  gt  papa replace  papa         is a good man   gt  gt  gt  app replace  papa        app is important    Alternatively use re and use regular expressions   This will allow the removal of leading trailing spaces    gt  gt  gt  import re  gt  gt  gt  papa    papa is a good man   gt  gt  gt  app    app is important   gt  gt  gt  papa3    papa is a papa  and papa   gt  gt  gt   gt  gt  gt  patt   re compile    s  papa  s      gt  gt  gt  patt sub    1mama  2   papa   mama is a good man   gt  gt  gt  patt sub    1mama  2   papa3   mama is a mama  and mama   gt  gt  gt  patt sub     papa3   is a  and

[python] How to strip a specific word from a string?

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