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Full Discussion: Separate Text File into Two Lists Using Python
Top Forums Shell Programming and Scripting Separate Text File into Two Lists Using Python Post 302774671 by Tyler_92 on Sunday 3rd of March 2013 12:30:40 AM
Old 03-03-2013
Separate Text File into Two Lists Using Python
Hello, I have a pretty simple question, but I am new to Python and am trying to write a simple program. Put simply, I want to take a text file that looks like this:
Code:
11111 22222
33333 44444
55555 66666
77777 88888

and produce two lists, one containing the contents of the left column, one the contents of the right one, that should look like this:
List1
Code:
11111
33333
55555
77777

List2
Code:
22222
44444
66666
88888

I tried this code, and several variations of it:
Code:
# Read runlist into two separate lists, "data_list" and "flasher_list"
data_list=[]
flasher_list=[]
file = open(runlist) #"runlist" is previously declared filepath
for line in file:
    data_list+=line[0:5]
    flasher_list+=line[6:11]

But, not surprisingly, it outputs something like:
Code:
['1', '1', '1', '1', '1', '3', '3', '3', '3', '3', '5', '5', '5', '5', '5', '7', '7', '7', '7', '7']

and
Code:
['2', '2', '2', '2', '2', '4', '4', '4', '4', '4', '6', '6', '6', '6', '6', '8', '8', '8', '8', '8']

Like I said I'm new to Python. I'm sure there's some class or module that can help, just not sure. Any ideas?

---------- Post updated 03-03-13 at 12:30 AM ---------- Previous update was 03-02-13 at 09:44 PM ----------

Pretty sure I figured it out:
Code:
data_list = []
flasher_list = []
file = open(runlist)
list = file.readlines()
file.close()
for index in list:
    data_list.append(index.split()[0])
    flasher_list.append(index.split()[1])

This seems to do the trick.
 

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LEARN ABOUT MOJAVE

locale::codes::langvar

Locale::Codes::LangVar(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangVar(3pm)

NAME

       Locale::Codes::LangVar - standard codes for language variation identification

SYNOPSIS

	  use Locale::Codes::LangVar;

	  $lvar = code2langvar('acm');		       # $lvar gets 'Mesopotamian Arabic'
	  $code = langvar2code('Mesopotamian Arabic'); # $code gets 'acm'

	  @codes   = all_langvar_codes();
	  @names   = all_langvar_names();

DESCRIPTION

       The "Locale::Codes::LangVar" module provides access to standard codes used for identifying language variations, such as those as defined in
       the IANA language registry.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default IANA language
       registry codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language variations. A code set may be specified using either a name, or
       a constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lvar = code2langvar('en','alpha-2');
	  $lvar = code2langvar('en',LOCALE_CODE_ALPHA_2);

       The codesets currently supported are:

       alpha
	   This is the set of alphanumeric codes from the IANA language registry, such as 'arevela' for Eastern Armenian.

	   This code set is identified with the symbol "LOCALE_LANGVAR_ALPHA".

	   This is the default code set.

ROUTINES

       code2langvar ( CODE [,CODESET] )
       langvar2code ( NAME [,CODESET] )
       langvar_code2code ( CODE ,CODESET ,CODESET2 )
       all_langvar_codes ( [CODESET] )
       all_langvar_names ( [CODESET] )
       Locale::Codes::LangVar::rename_langvar  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangVar::add_langvar  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangVar::delete_langvar  ( CODE [,CODESET] )
       Locale::Codes::LangVar::add_langvar_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangVar::delete_langvar_alias  ( NAME )
       Locale::Codes::LangVar::rename_langvar_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangVar::add_langvar_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangVar::delete_langvar_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.iana.org/assignments/language-subtag-registry
	   The IANA language subtag registry.

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 2011-2013 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.18.2							    2014-01-06					       Locale::Codes::LangVar(3pm)
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