How to convert comma-delimited string to list in Python

Question

Given a string that is a sequence of several values separated by a commma   mStr    A B C D E     How do I convert the string to a list   mList     A    B    C    D    E

User · Answer

gt  gt  gt  some string  A B C D E   gt  gt  gt  new tuple  tuple some string split        gt  gt  gt  new tuple   A    B    C    D    E

User · Answer

You can split that string on   and directly get a list   mStr    A B C D E  list1   mStr split      print list1    Output        A    B    C    D    E     You can also convert it to an n-tuple   print tuple list1     Output        A    B    C    D    E

User · Answer

You can use this function to convert comma-delimited single character strings to list-  def stringtolist x       mylist        for i in range 0 len x  2           mylist append x i       return mylist

User · Answer

Consider the following in order to handle the case of an empty string    gt  gt  gt  my string    A B C D E   gt  gt  gt  my string split      if my string else      A    B    C    D    E    gt  gt  gt  my string       gt  gt  gt  my string split      if my string else

User · Answer

You can use the str split method    gt  gt  gt  my string    A B C D E   gt  gt  gt  my list   my string split       gt  gt  gt  print my list   A    B    C    D    E     If you want to convert it to a tuple  just   gt  gt  gt  print tuple my list    A    B    C    D    E     If you are looking to append to a list  try this    gt  gt  gt  my list append  F    gt  gt  gt  print my list   A    B    C    D    E    F

User · Answer

splits string according to delimeters      Let s make a function that can split a string into list according the given delimeters   example data  cat dog greff snake  example delimeters    -         def string to splitted array data delimeters        result list     res            we will add chars into sub str until       reach a delimeter     sub str          for c in data   iterate over data char by char           if we reached a delimeter  we store the result          if c in delimeters                 avoid empty strings             if len sub str  gt 0                    looks like a valid string                  res append sub str                    reset sub str to start over                 sub str              else                c is not a deilmeter  then it is                part of the string              sub str    c       there may not be delimeter at end of data         if sub str is not empty  we should att it to list       if len sub str  gt 0          res append sub str        result is in res      return res    test the function   delimeters      -        read the csv data from console   csv string   input  csv string     lets check if working   splitted array   string to splitted array csv string delimeters  print splitted array

User · Answer

In the case of integers that are included at the string  if you want to avoid casting them to int individually you can do   mList    int e  if e isdigit   else e for e in mStr split         It is called list comprehension  and it is based on set builder notation   ex     gt  gt  gt  mStr    1 A B 3 4   gt  gt  gt  mList    int e  if e isdigit   else e for e in mStr split        gt  gt  gt  mList  gt  gt  gt   1  A   B  3 4

[python] How to convert comma-delimited string to list in Python?

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