On Feb 19, 12:40 pm, Mike Driscoll <kyoso...@gmail.com> wrote: > On Feb 19, 12:32 pm, "steven.oldner" <steven.old...@gmail.com> wrote: > > > Simple question but I haven't found an answer. I program in ABAP, and > > in ABAP you define the data structure of the file and move the file > > line into the structure, and then do something to the fields. That's > > my mental reference. > > > How do I separate or address each field in the file line with PYTHON? > > What's the correct way of thinking? > > > Thanks! > > I don't really follow what you mean since I've never used ABAP, but > here's how I typically read a file in Python: > > f = open("someFile.txt") > for line in f: > # do something with the line > print line > f.close() > > Of course, you can read just portions of the file too, using something > like this: > > f.read(64) > > Which will read 64 bytes. For more info, check the following out: > > http://www.diveintopython.org/file_handling/file_objects.html > > - Mike
Hi Mike, ABAP is loosely based on COBOL. Here is what I was trying to do, but ended up just coding in ABAP. Read a 4 column text file of about 1,000 lines and compare the 2 middle field of each line. If there is a difference, output the line. The line's definition in ABAP is PERNR(8) type c, ENDDA(10) type c, BEGDA(10) type c, and LGART(4) type c. In ABAP the code is: LOOP AT in_file. IF in_file-endda <> in_file-begda. WRITE:\ in_file. " that's same as python's print ENDIF. ENDLOOP. I can read the file, but didn't know how to look st the fields in the line. From what you wrote, I need to read each segment/field of the line? Thanks, Steve -- http://mail.python.org/mailman/listinfo/python-list