On 26/10/14 22:12, Clayton Kirkwood wrote:
!On 25/10/14 23:46, Clayton Kirkwood wrote:
!> __author__ = 'SYSTEM'
!
!You are still setting __author__ which is a bit suspect.
!Leave double underscores to python.
This is something being created when I started with this file.
How are you creating your code? Are you using some kind of IDE?
!> raw_table = ('''
!
!> a: Ask y: Dividend Yield
!> b: Bid d: Dividend per Share
!> b2: Ask (Realtime) r1: Dividend Pay Date
!> b3: Bid (Realtime) q: Ex-Dividend Date
!...
!> s7: Short Ratio
!> ''')
!> col_position, code, description = 0, [], [] key_name =
!> raw_table.replace('\t','\n')
!
!I assume this is because you don't control the file format? Since
!otherwise you would just use newlines in the file, right?
Correct. I cut and pasted the data. Not going to change (probably) no sense
in putting it in a file
Are you saying the data will stay with your code? If that's the case
then reformat the text into a Python data structure and avoid all the
parsing that makes up about half your code.
!> for each_line in key_name.splitlines():
!> if ':' in each_line:
!> c, d = each_line.split(':')
!> code.append(c)
!> description.append(d.strip())
!> print( col_position, code[col_position],
!description[col_position])
!> col_position += 1
!
!You could use enumerate in the for loop and that would set the
!col_position value for you:
!
...
However, I don't think that this solution will work for me, because there
are lines with no :
Ah yes, I didn't notice you only increment the counter inside the if.
!> output_line_len = 120
!> current_output_pos = index = 0
!> description_output_string = code_output_string = ''
!> for description_position, code_position in zip(description, code):
!
!Why not just put the codes and descriptions in tuples when you read them
!in the loop above? Why use zip? In other words where you do
!
! > c, d = each_line.split(':')
! > code.append(c)
! > description.append(d.strip())
!
!Why not just join the pair there:
!
! > c, d = each_line.split(':')
! values.append((c,d))
!
!or even just
!
! > values.append(each_line.split(':'))
!
Uh, because I didn't know about it....:<)))
!It seems as if you are splitting the values into two lists only to zip
!those lists together again in the next loop?
!
...
This has led to a problem, however. How do I determine if a value is in one
of the tuples:
Key in [a, word], [key, word]
I'm not sure exactly what you mean, I'd probably need to see
how you implemented it but, using my example above, you can do
key in values[index]
So if values looks like:
values = [(1,2),(2,3),....]
then the test
if 2 in values[0]: will be true
and
if 2 in values[1]: will also be true.
If you need to test the specific tuple item you could do:
if 2 == values[0][0]: will be false because you only test 1st item
and
if 2 == values[0][1]: will be true coz you test the 2nd item.
If you wanted to extract all the tuples containing 2 you could use a
comprehension like:
value2 = [tup for tup in values if 2 in tup]
HTH
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.flickr.com/photos/alangauldphotos
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