Attribute Error list object has no attribute split

Question

I am trying read a file and split a cell in each line by a comma and then display only the first and the second cells which contain information regarding the latitude and the longitude  This is the file      time latitude longitude type2015-03-20T10 20 35 890Z 38 8221664 -122 7649994 earthquake2015-03-20T10 18 13 070Z 33 2073333 -116 6891667 earthquake2015-03-20T10 15 09 000Z 62 242 -150 8769 earthquake   My program   def getQuakeData        filename   input  Please enter the quake file         readfile   open filename   r       readlines   readfile readlines        Type   readlines split          x   Type 1      y   Type 2      for points in Type          print x y  getQuakeData     When I try to execute this program  it gives me an error       AttributeError   list  object has no attribute  split    Please help me

User · Answer

what i did was a quick fix by converting readlines to string but i do not recommencement it but it works and i dont know if there are limitations or not    def getQuakeData        filename   input  Please enter the quake file         readfile   open filename   r       readlines   str readfile readlines         Type   readlines split          x   Type 1      y   Type 2      for points in Type          print x y  getQuakeData

User · Answer

The problem is that readlines is a list of strings  each of which is a line of filename  Perhaps you meant   for line in readlines      Type   line split          x   Type 1      y   Type 2      print x y

User · Answer

I think you ve actually got a wider confusion here   The initial error is that you re trying to call split on the whole list of lines  and you can t split a list of strings  only a string  So  you need to split each line  not the whole thing   And then you re doing for points in Type  and expecting each such points to give you a new x and y  But that isn t going to happen  Types is just two values  x and y  so first points will be x  and then points will be y  and then you ll be done  So  again  you need to loop over each line and get the x and y values from each line  not loop over a single Types from a single line   So  everything has to go inside a loop over every line in the file  and do the split into x and y once for each line  Like this   def getQuakeData        filename   input  Please enter the quake file         readfile   open filename   r        for line in readfile          Type   line split              x   Type 1          y   Type 2          print x y   getQuakeData     As a side note  you really should close the file  ideally with a with statement  but I ll get to that at the end     Interestingly  the problem here isn t that you re being too much of a newbie  but that you re trying to solve the problem in the same abstract way an expert would  and just don t know the details yet  This is completely doable  you just have to be explicit about mapping the functionality  rather than just doing it implicitly  Something like this   def getQuakeData        filename   input  Please enter the quake file         readfile   open filename   r       readlines   readfile readlines       Types    line split      for line in readlines      xs    Type 1  for Type in Types      ys    Type 2  for Type in Types      for x  y in zip xs  ys           print x y   getQuakeData     Or  a better way to write that might be   def getQuakeData        filename   input  Please enter the quake file           Use with to make sure the file gets closed     with open filename   r   as readfile            no need for readlines  the file is already an iterable of lines           also  using generator expressions means no extra copies         types    line split      for line in readfile            iterate tuples  instead of two separate iterables  so no need for zip         xys     type 1   type 2   for type in types          for x  y in xys              print x y   getQuakeData       Finally  you may want to take a look at NumPy and Pandas  libraries which do give you a way to implicitly map functionality over a whole array or frame of data almost the same way you were trying to

[python] Attribute Error: 'list' object has no attribute 'split'

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