python creating list from string

Question

I have list of strings  a     word1  23  12   word2  10  19   word3  11  15     I would like to create a list  b      word1  23 12    word2   10  19    word3   11  15     Is this a easy way to do this

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I know this is old but here s a one liner list comprehension   data     word1  23  12   word2  10  19   word3  11  15      int item  if item isdigit   else item for item in items split        for items in data    or    int item  if item isdigit   else item for items in data for item in items split

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input     word1  23  12   word2  10  19   word3  11  15   output      for item in input      items   item split          output append  items 0   int items 1    int items 2

User · Answer

Try this   b     entry split      for entry in a   b     b i  if i   3    0 else int b i   for i in xrange 0  len b

User · Answer

If you need to convert some of them to numbers and don t know in advance which ones  some additional code will be needed  Try something like this   b      for x in a      temp          items   x split          for item in items          try              n   int item          except ValueError              temp append item          else              temp append n      b append temp    This is longer than the other answers  but it s more versatile

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More concise than others   def parseString string       try          return int string      except ValueError          return string  b     parseString s  for s in clause split        for clause in a      Alternatively if your format is fixed as  lt string gt    lt int gt    lt int gt   you can be even more concise   def parseClause a b c       return  a  int b   int c    b    parseClause  clause  for clause in a

[python] python: creating list from string

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