Correct, those values are of (E4, G4, F4). But with "row_no += 1", shouldnt it pick up the values from the next row ?
...
...
No, it should not.
It will not.
No programming language will do that for you.
Golden rule of programming => a programming language will only do what you tell it to do. It will not do anything on its own.
Quote:
Originally Posted by nans
...
I thought this while loop meant 'go to row 4, if the row matches the score from the dictionary, print the value or else print unknown and then go on to the next row and do the same'
...
The "while" loop is only for repeating a "set of actions" while a "condition" is true.
The repetitive "set of actions" is:
1) going to next row
2) determining pos value, alt value, ref value for the row we reached
3) constructing the cpos value from the 3 values determined in the step above
4) checking if this cpos value is in the dictionary dict_pos
5) setting the value of "score" cell in the row that we are now
Since 1) through 5) are repetitive, we work on the entire spreadsheet, but one row at a time.
Inside a "while" loop, we are only working on one row - the current row.
The "condition" is: either pos value is non-empty or alt value is non-empty or ref value is non-empty.
As you can see, the structure of a "while" loop is very generic (repeat a set of actions while a condition is true), so it can be used in a wide variety of situations in any programming language.
Quote:
Originally Posted by nans
...
...
How would I recalculate the values in a loop for all rows ?
Code:
while row_no <=10:
if (dict_pos.has_key(cpos)):
NG = dict_pos[cpos]
#print dict_pos[cpos]
else:
NG = 'Unknown_' + datetime.now().strftime("%B") + datetime.now().strftime("%Y")
row_no += 1
print row_no
cpos = Scores(POS=cell_pos.value, ALT=cell_alt.value, REF=cell_ref.value)
print cpos
wb.save(sheet_xl_file)
...
...
Old proverb: "How to eat an elephant? One bite at a time."
As I mentioned earlier, inside a loop, you only have to calculate the pos, alt and ref values for one row - the current row, the row you are on.
Now, for row_no = 4, you had a few statements that calculated cell_pos, cell_alt and cell_ref. Then you calculated "cpos" from those cell_pos, cell_alt and cell_ref values.
You need those statements inside the "while" loop.
So once the row_no is incremented inside the loop, you:
1) determine the cell_pos, cell_alt and cell_ref
2) next you calculate the cpos using cell_pos, cell_alt and cell_ref
This will be your "cpos" - only for the current row.
When printed, you will see different values of cpos - printed one at a time from within your "while" loop.
(The output that I showed in my earlier post was not printed in one shot - it was printed during each iteration of the loop - one line printed per iteration.)
Last edited by durden_tyler; 07-03-2017 at 01:05 PM..
This User Gave Thanks to durden_tyler For This Post:
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1
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1
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07-03-2017
