Create a List that contain each Line of a File

Question

I m trying to open a file and create a list with each line read from the file      i 0    List         for Line in inFile        List i  Line split            i  1    print List   But this sample code gives me an error because of the i  1 saying that index is out of range  What s my problem here  How can I write the code in order to increment my list with every new Line in the InFile

User · Answer

I am not sure about Python but most languages have push append function for arrays

User · Answer

f readlines   returns a list that contains each line as an item in the list  if you want eachline to be split      you can use list comprehensions    list split      for line in file

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A file is almost a list of lines   You can trivially use it in a for loop   myFile  open   SomeFile txt    r    for x in myFile      print x myFile close     Or  if you want an actual list of lines  simply create a list from the file   myFile  open   SomeFile txt    r    myLines   list  myFile   myFile close   print len myLines   myLines   You can t do someList i  to put a new item at the end of a list   You must do someList append i    Also  never start a simple variable name with an uppercase letter   List confuses folks who know Python   Also  never use a built-in name as a variable   list is an existing data type  and using it as a variable confuses folks who know Python

User · Answer

f readlines   returns a list that contains each line as an item in the list  if you want eachline to be split      you can use list comprehensions    list split      for line in file

User · Answer

A file is almost a list of lines   You can trivially use it in a for loop   myFile  open   SomeFile txt    r    for x in myFile      print x myFile close     Or  if you want an actual list of lines  simply create a list from the file   myFile  open   SomeFile txt    r    myLines   list  myFile   myFile close   print len myLines   myLines   You can t do someList i  to put a new item at the end of a list   You must do someList append i    Also  never start a simple variable name with an uppercase letter   List confuses folks who know Python   Also  never use a built-in name as a variable   list is an existing data type  and using it as a variable confuses folks who know Python

User · Answer

my list    line split      for line in open  filename txt

User · Answer

Please read PEP8   You re swaying pretty far from python conventions   If you want a list of lists of each line split by comma  I d do this   l      for line in in file      l append line split         You ll get a newline on each record   If you don t want that   l      for line in in file      l append line rstrip   split

User · Answer

A file is almost a list of lines   You can trivially use it in a for loop   myFile  open   SomeFile txt    r    for x in myFile      print x myFile close     Or  if you want an actual list of lines  simply create a list from the file   myFile  open   SomeFile txt    r    myLines   list  myFile   myFile close   print len myLines   myLines   You can t do someList i  to put a new item at the end of a list   You must do someList append i    Also  never start a simple variable name with an uppercase letter   List confuses folks who know Python   Also  never use a built-in name as a variable   list is an existing data type  and using it as a variable confuses folks who know Python

User · Answer

I am not sure about Python but most languages have push append function for arrays

User · Answer

It s a lot easier than that   List   open  filename txt   readlines     This returns a list of each line in the file

User · Answer

I did it this way  lines list   open  file txt   read   splitlines     Every line comes with its end of line characters   n r   this way the characters are removed

User · Answer

I am not sure about Python but most languages have push append function for arrays

User · Answer

A file is almost a list of lines   You can trivially use it in a for loop   myFile  open   SomeFile txt    r    for x in myFile      print x myFile close     Or  if you want an actual list of lines  simply create a list from the file   myFile  open   SomeFile txt    r    myLines   list  myFile   myFile close   print len myLines   myLines   You can t do someList i  to put a new item at the end of a list   You must do someList append i    Also  never start a simple variable name with an uppercase letter   List confuses folks who know Python   Also  never use a built-in name as a variable   list is an existing data type  and using it as a variable confuses folks who know Python

User · Answer

It s a lot easier than that   List   open  filename txt   readlines     This returns a list of each line in the file

User · Answer

Please read PEP8   You re swaying pretty far from python conventions   If you want a list of lists of each line split by comma  I d do this   l      for line in in file      l append line split         You ll get a newline on each record   If you don t want that   l      for line in in file      l append line rstrip   split

User · Answer

my list    line split      for line in open  filename txt

User · Answer

I did it this way  lines list   open  file txt   read   splitlines     Every line comes with its end of line characters   n r   this way the characters are removed

User · Answer

my list    line split      for line in open  filename txt

User · Answer

It s a lot easier than that   List   open  filename txt   readlines     This returns a list of each line in the file

User · Answer

Please read PEP8   You re swaying pretty far from python conventions   If you want a list of lists of each line split by comma  I d do this   l      for line in in file      l append line split         You ll get a newline on each record   If you don t want that   l      for line in in file      l append line rstrip   split

User · Answer

Please read PEP8   You re swaying pretty far from python conventions   If you want a list of lists of each line split by comma  I d do this   l      for line in in file      l append line split         You ll get a newline on each record   If you don t want that   l      for line in in file      l append line rstrip   split

User · Answer

It s a lot easier than that   List   open  filename txt   readlines     This returns a list of each line in the file

User · Answer

Assuming you also want to strip whitespace at beginning and end of each line  you can map the string strip function to the list returned by readlines   map str strip  open  filename   readlines

User · Answer

f readlines   returns a list that contains each line as an item in the list  if you want eachline to be split      you can use list comprehensions    list split      for line in file

User · Answer

f readlines   returns a list that contains each line as an item in the list  if you want eachline to be split      you can use list comprehensions    list split      for line in file

User · Answer

my list    line split      for line in open  filename txt

User · Answer

Assuming you also want to strip whitespace at beginning and end of each line  you can map the string strip function to the list returned by readlines   map str strip  open  filename   readlines

User · Answer

I am not sure about Python but most languages have push append function for arrays

[python] Create a List that contain each Line of a File

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