Inserting the same value multiple times when formatting a string

Question

I have a string of this form  s  arbit  string   s hello world  s hello world  s    s s s    All the  s in string have the same value  i e  s   Is there a better way of writing this   Rather than listing out s three times

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gt  gt  gt  s1   arbit   gt  gt  gt  s2    hello world   join   s  3    gt  gt  gt  print s2 arbit hello world arbit hello world arbit

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You can use advanced string formatting  available in Python 2 6 and Python 3 x   incoming    arbit  result     0  hello world  0  hello world  0   format incoming

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Fstrings If you are using Python 3 6  you can make use of the new so called f-strings which stands for formatted strings and it can be used by adding the character f at the beginning of a string to identify this as an f-string  price   123 name    quot Jerry quot  print f quot  name      price  is much  isn t  price  a lot   name   quot    gt Jerry    123 is much  isn t 123 a lot  Jerry    The main benefits of using f-strings is that they are more readable  can be faster  and offer better performance   Source Pandas for Everyone  Python Data Analysis  By Daniel Y  Chen Benchmarks No doubt that the new f-strings are more readable  as you don t have to remap the strings  but is it faster though as stated in the aformentioned quote  price   123 name    quot Jerry quot   def new        x   f quot  name      price  is much  isn t  price  a lot   name   quot    def old        x    quot  1      0  is much  isn t  0  a lot   1   quot  format price  name   import timeit print timeit timeit  new     setup  from   main   import new   number 10  7   print timeit timeit  old     setup  from   main   import old   number 10  7    gt  3 8741058271543776   new  gt  5 861819514350163    old  Running 10 Million test s it seems that the new f-strings are actually faster in mapping

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incoming    arbit  result      s s hello world   s s hello world   s s      s   incoming    You may like to have a read of this to get an understanding  String Formatting Operations

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Depends on what you mean by better  This works if your goal is removal of redundancy   s  foo  string   s bar baz  s bar baz  s bar baz     3  s

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You can use the dictionary type of formatting   s  arbit  string    key s hello world   key s hello world   key s      key   s

[python] Inserting the same value multiple times when formatting a string

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