Phew finally... I only made a break through with this problem when I worked it out on a flow chart...the end result looking like the structure of a tournament in reverse. Using nests of for loops seemed to do the trick....apologies in advance for the duplication of values in the code...its fully functional but just needs tightening..however I hope the below code helps someone. import datetime from datetime import datetime from datetime import timedelta FIXED_WEEK_1 = "16/04/2019" W1 = timedelta(days= 7 ) W2 = timedelta(days= 14 ) W3 = timedelta(days= 21 ) W4 = timedelta(days= 28 ) W5 = timedelta(days= 35 ) W6 = timedelta(days= 42 ) W7 = timedelta(days= 49 ) W8 = timedelta(days= 56 ) BOX_1 = 1 BOX_2 = 0 BOX_3 = 1 BOX_4 = 1 week_one_raw = datetime.strptime(FIXED_WEEK_1, '%d/%m/%Y' ) week_one_refined = week_one_raw week_two_refined = week_one_raw + W1 week_three_refined = week_two_refined + W1 week_four_refined = week_three_refined + W1 week_to_pay_refined = week_four_refined + W1 if BOX_1 == 0 : week_one_refined = week_one_raw if BOX_2 == 0 : week_two_refined = week_one_raw + W1 if BOX_3 == 0 : week_three_refined = week_one_raw + W2 if BOX_4 == 0 : week_four_refined = week_one_raw + W3 week_to_pay_refined = week_one_raw + W4 if BOX_4 == 1 : week_four_refined = week_one_raw +W4 week_to_pay_refined = week_one_raw +W5 if BOX_3 == 1 : week_three_refined = week_one_raw + W3 if BOX_4 == 0 : week_three_refined = week_one_raw +W3 week_four_refined = week_one_raw +W4 week_to_pay_refined = week_one_raw +W5 if BOX_4 == 1 : week_three_refined = week_one_raw +W4 week_four_refined = week_one_raw +W5 week_to_pay_refined = week_one_raw +W6 if BOX_2 == 1 : week_two_refined = week_one_raw + W2 if BOX_3 == 0 : week_two_refined = week_one_raw +W2 if BOX_4 == 0 : week_two_refined = week_one_raw + W2 week_three_refined = week_one_raw +W3 week_four_refined = week_one_raw +W4 week_to_pay_refined = week_one_raw +W5 if BOX_4 == 1 : week_two_refined = week_one_raw +W3 week_three_refined = week_one_raw +W4 week_four_refined = week_one_raw +W6 week_to_pay_refined = week_one_raw +W7 if BOX_3 == 1 : week_two_refined = week_one_raw +W3 if BOX_4 == 0 : week_two_refined = week_one_raw + W3 week_three_refined = week_one_raw +W4 week_four_refined = week_one_raw +W5 week_to_pay_refined = week_one_raw +W6 if BOX_4 == 1 : week_two_refined = week_one_raw + W4 week_three_refined = week_one_raw +W5 week_four_refined = week_one_raw +W6 week_to_pay_refined = week_one_raw +W7 if BOX_1 == 1 : week_one_refined = week_one_raw + W1 if BOX_2 == 0 : week_one_refined = week_one_raw +W1 if BOX_3 == 0 : week_one_refined = week_one_raw +W1 if BOX_4 == 0 : week_one_refined = week_one_raw +W1 week_two_refined = week_one_raw +W2 week_three_refined = week_one_raw +W3 week_four_refined = week_one_raw +W4 week_to_pay_refined = week_one_raw +W5 if BOX_4 == 1 : week_one_refined = week_one_raw +W1 week_two_refined = week_one_raw +W2 week_three_refined = week_one_raw +W3 week_four_refined = week_one_raw +W5 week_to_pay_refined = week_one_raw +W6 if BOX_3 == 1 : week_one_refined = week_one_raw +W1 if BOX_4 == 0 : week_one_refined = week_one_raw +W1 week_two_refined = week_one_raw +W2 week_three_refined = week_one_raw +W4 week_four_refined = week_one_raw +W5 week_to_pay_refined = week_one_raw +W6 if BOX_4 == 1 : week_one_refined = week_one_raw +W1 week_two_refined = week_one_raw +W2 week_three_refined = week_one_raw +W5 week_four_refined = week_one_raw +W6 week_to_pay_refined = week_one_raw +W7 if BOX_2 == 1 : week_one_refined = week_one_raw + W2 if BOX_3 == 0 : if BOX_4 == 0 : week_one_refined = week_one_raw +W2 week_two_refined = week_one_raw +W3 week_three_refined = week_one_raw +W4 week_four_refined = week_one_raw +W5 week_to_pay_refined = week_one_raw +W6 if BOX_4 == 1 : week_one_refined = week_one_raw +W2 week_two_refined = week_one_raw +W3 week_three_refined = week_one_raw +W4 week_four_refined = week_one_raw +W6 week_to_pay_refined = week_one_raw +W7 if BOX_3 == 1 : if BOX_4 == 0 : week_one_refined = week_one_raw + W3 week_two_refined = week_one_raw + W4 week_three_refined = week_one_raw + W5 week_four_refined = week_one_raw + W6 week_to_pay_refined = week_one_raw + W7 if BOX_4 == 1 : week_one_refined = week_one_raw + W4 week_two_refined = week_one_raw + W5 week_three_refined = week_one_raw + W6 week_four_refined = week_one_raw + W7 week_to_pay_refined = week_one_raw + W8

Okay this works....ish!? import datetime from datetime import datetime from datetime import timedelta FIXED_WEEK_1 = "15/04/2019" W1 = timedelta(days= 7 ) W2 = timedelta(days= 14 ) W3 = timedelta(days= 21 ) W4 = timedelta(days= 28 ) W5 = timedelta(days= 35 ) BOX_1 = 0 BOX_2 = 0 BOX_3 = 0 BOX_4 = 0 week_one_raw = datetime.strptime(FIXED_WEEK_1, '%d/%m/%Y' ) week_one_refined = week_one_raw week_two_refined = week_one_raw + W1 week_three_refined = week_two_refined + W1 week_four_refined = week_three_refined + W1 week_to_pay_refined = week_four_refined + W1 if BOX_1 == 1 : week_one_refined = week_one_raw + W1 week_two_refined = week_one_refined + W1 week_three_refined = week_two_refined + W1 week_four_refined = week_three_refined + W1 week_to_pay_refined = week_four_refined + W1 if BOX_1 == 0 : week_one_refined = week_one_raw week_two_refined = week_one_raw + W1 week_three_refined = week_two_refined + W1 week_four_refined = week_three_refined + W1 week_to_pay_refined = week_four_refined + W1 if BOX_2 == 1 : week_one_refined = week_one_refined week_two_refined = week_two_refined + W1 week_three_refined = week_two_refined + W1 week_four_refined = week_three_refined + W1 week_to_pay_refined = week_four_refined + W1 if BOX_2 == 0 : week_one_refined = week_one_refined week_two_refined = week_two_refined week_three_refined = week_three_refined week_four_refined = week_four_refined week_to_pay_refined = week_four_refined + W1 if BOX_3 == 1 : week_one_refined = week_one_refined week_two_refined = week_two_refined week_three_refined = week_three_refined +W1 week_four_refined = week_four_refined + W1 week_to_pay_refined = week_four_refined + W1 if BOX_3 == 0 : week_one_refined = week_one_refined week_two_refined = week_two_refined week_three_refined = week_three_refined week_four_refined = week_four_refined week_to_pay_refined = week_four_refined + W1 if BOX_4 == 1 : week_one_refined = week_one_refined week_two_refined = week_two_refined week_three_refined = week_three_refined week_four_refined = week_four_refined +W1 week_to_pay_refined = week_four_refined +W1 if BOX_4 == 0 : week_one_refined = week_one_refined week_two_refined = week_two_refined week_three_refined = week_three_refined week_four_refined = week_four_refined week_to_pay_refined = week_four_refined + W1 print (week_one_refined) print (week_two_refined) print (week_three_refined) print (week_four_refined) print (week_to_pay_refined) This code works and skips the correct weeks depending on whether the box variables are set to 0 or 1. This would work with a check box which was controlled by a submit button running the code above as a def and the checkboxes all returning 0 or 1 values. Except if two check boxes are checked...then it doesn't skip two weeks ahead...damn it ....so close

Okay this works! import datetime from datetime import datetime from datetime import timedelta FIXED_WEEK_1 = "15/04/2019" W1 = timedelta(days= 7 ) W2 = timedelta(days= 14 ) W3 = timedelta(days= 21 ) W4 = timedelta(days= 28 ) W5 = timedelta(days= 35 ) BOX_1 = 0 BOX_2 = 0 BOX_3 = 0 BOX_4 = 0 week_one_raw = datetime.strptime(FIXED_WEEK_1, '%d/%m/%Y' ) week_one_refined = week_one_raw week_two_refined = week_one_raw + W1 week_three_refined = week_two_refined + W1 week_four_refined = week_three_refined + W1 week_to_pay_refined = week_four_refined + W1 if BOX_1 == 1 : week_one_refined = week_one_raw + W1 week_two_refined = week_one_refined + W1 week_three_refined = week_two_refined + W1 week_four_refined = week_three_refined + W1 week_to_pay_refined = week_four_refined + W1 if BOX_1 == 0 : week_one_refined = week_one_raw week_two_refined = week_one_raw + W1 week_three_refined = week_two_refined + W1 week_four_refined = week_three_refined + W1 week_to_pay_refined = week_four_refined + W1 if BOX_2 == 1 : week_one_refined = week_one_refined week_two_refined = week_two_refined + W1 week_three_refined = week_two_refined + W1 week_four_refined = week_three_refined + W1 week_to_pay_refined = week_four_refined + W1 if BOX_2 == 0 : week_one_refined = week_one_refined week_two_refined = week_two_refined week_three_refined = week_three_refined week_four_refined = week_four_refined week_to_pay_refined = week_four_refined + W1 if BOX_3 == 1 : week_one_refined = week_one_refined week_two_refined = week_two_refined week_three_refined = week_three_refined +W1 week_four_refined = week_four_refined + W1 week_to_pay_refined = week_four_refined + W1 if BOX_3 == 0 : week_one_refined = week_one_refined week_two_refined = week_two_refined week_three_refined = week_three_refined week_four_refined = week_four_refined week_to_pay_refined = week_four_refined + W1 if BOX_4 == 1 : week_one_refined = week_one_refined week_two_refined = week_two_refined week_three_refined = week_three_refined week_four_refined = week_four_refined +W1 week_to_pay_refined = week_four_refined +W1 if BOX_4 == 0 : week_one_refined = week_one_refined week_two_refined = week_two_refined week_three_refined = week_three_refined week_four_refined = week_four_refined week_to_pay_refined = week_four_refined + W1 print (week_one_refined) print (week_two_refined) print (week_three_refined) print (week_four_refined) print (week_to_pay_refined) This code works and skips the correct weeks depending on whether the box variables are set to 0 or 1. This would work with a check box which was controlled by a submit button running the code above as a def and the checkboxes all returning 0 or 1 values. Hope this helps someone.

Fantastic work....I'm finding Python to be the first real language I can get to grips with. Keep on going dude. :)

Ok chaps and chapettes, stand down..I've got this I changed the code to : student_list = [] #opens the csv file, takes out the information and saves them in the Student Class student_file = open ( 'student_list.csv' ) student_file_reader = csv.reader(student_file) for row in student_file: row_string = str(row) row_parts1,row_parts2,row_parts3,row_parts4,row_parts5 = row_string. split ( ',' ) student_list.append(Students(row_parts1,row_parts2,row_parts3,row_parts4,row_parts5)) print (student_list[ 0 ]) streamlining the append to the list by a line, then added to my class the repr bit class Students () : def __init__ (self,student_id, first_name,second_name,student_parent,parent_email) : self.student_id = student_id self.first_name = first_name self.second_name = second_name self.student_parent = student_parent self.parent_email = parent_email #def __repr__(self): #return {self.student_id,self.first_name,self.second_name,self.student_parent,self.parent_email} def __repr__ (self) : return self.student_id + " " + self.first_name + " " +self.second_name + " " + self.student_parent + " " + self.parent_email now it prints the information from the the first index of the list. Huzzah! Hope this helps someone.

Hi Everyone, I'm James - Maths and English tutor and long time tinkerer of computer languages from the days of my old ZX Spectrum. Really excited and interested with Python and the Raspberry Pi right now and have intentions of learning enough to be able to teach and create anything I fancy. So..Howdy :)