I am new to Python but have used many other (mostly dead) languages in the
past. I want to be able to process *.txt and *.csv files. I can now read that
and then change them as needed – mostly just take a column and do some if-then
to create a new variable. My problem is sorting these files:
1.) How do I sort file1.txt by position and write out file1_sorted.txt; for
example, if all the records are 100 bytes long and there is a three digit id in
the position 0-2; here would be some sample data:
a. 001JohnFilben……
b. 002Joe Smith…..
2.) How do I sort file1.csv by column name; for example, if all the records
have three column headings, “id”, “first_name”, “last_name”; here would be
some sample data:
a. Id, first_name,last_name
b. 001,John,Filben
c. 002,Joe, Smith
3.) What about if I have millions of records and I am processing on a laptop
with a large external drive – basically, are there space considerations? What
are the work arounds.
Any help would be appreciated. Thank you.
John Filben
Cell Phone - 773.401.2822
Email - johnfil...@yahoo.com
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