>>> from std_filter import std_filter

>>> name = 'grades_11_PRG_2526.csv'

>>> ns = std_filter(name, 5.0)
>>> with open('5.0_avg_grades_11_PRG_2526.csv', 'r') as f, open('5.0_avg_grades_11_PRG_2526.ref', 'r') as fref:
... 	l = f.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	lref = fref.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	while l != '' and lref == l:
... 		l = f.readline()
... 		lref = fref.readline()
... 	oeq = lref == l == ''
>>> ns == (5, 5) and oeq
True

>>> ns = std_filter(name, 5.5)
>>> with open('5.5_avg_grades_11_PRG_2526.csv', 'r') as f, open('5.5_avg_grades_11_PRG_2526.ref', 'r') as fref:
... 	l = f.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	lref = fref.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	while l != '' and lref == l:
... 		l = f.readline()
... 		lref = fref.readline()
... 	oeq = lref == l == ''
>>> ns == (5, 3) and oeq
True

>>> ns = std_filter(name, 6.0)
>>> with open('6.0_avg_grades_11_PRG_2526.csv', 'r') as f, open('6.0_avg_grades_11_PRG_2526.ref', 'r') as fref:
... 	l = f.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	lref = fref.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	while l != '' and lref == l:
... 		l = f.readline()
... 		lref = fref.readline()
... 	oeq = lref == l == ''
>>> ns == (5, 3) and oeq
True

>>> ns = std_filter(name, 6.5)
>>> with open('6.5_avg_grades_11_PRG_2526.csv', 'r') as f, open('6.5_avg_grades_11_PRG_2526.ref', 'r') as fref:
... 	l = f.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	lref = fref.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	while l != '' and lref == l:
... 		l = f.readline()
... 		lref = fref.readline()
... 	oeq = lref == l == ''
>>> ns == (5, 2) and oeq
True

>>> ns = std_filter(name, 7.5)
>>> with open('7.5_avg_grades_11_PRG_2526.csv', 'r') as f, open('7.5_avg_grades_11_PRG_2526.ref', 'r') as fref:
... 	l = f.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	lref = fref.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	while l != '' and lref == l:
... 		l = f.readline()
... 		lref = fref.readline()
... 	oeq = lref == l == ''
>>> ns == (5, 1) and oeq
True

>>> ns = std_filter(name, 8.5)
>>> with open('8.5_avg_grades_11_PRG_2526.csv', 'r') as f, open('8.5_avg_grades_11_PRG_2526.ref', 'r') as fref:
... 	l = f.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	lref = fref.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	while l != '' and lref == l:
... 		l = f.readline()
... 		lref = fref.readline()
... 	oeq = lref == l == ''
>>> ns == (5, 0) and oeq
True




>>> name = 'grades_12_PRG_2526.csv'

>>> ns = std_filter(name, 5.0)
>>> with open('5.0_avg_grades_12_PRG_2526.csv', 'r') as f, open('5.0_avg_grades_12_PRG_2526.ref', 'r') as fref:
... 	l = f.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	lref = fref.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	while l != '' and lref == l:
... 		l = f.readline()
... 		lref = fref.readline()
... 	oeq = lref == l == ''
>>> ns == (5, 5) and oeq
True

>>> ns = std_filter(name, 6.0)
>>> with open('6.0_avg_grades_12_PRG_2526.csv', 'r') as f, open('6.0_avg_grades_12_PRG_2526.ref', 'r') as fref:
... 	l = f.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	lref = fref.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	while l != '' and lref == l:
... 		l = f.readline()
... 		lref = fref.readline()
... 	oeq = lref == l == ''
>>> ns == (5, 3) and oeq
True

>>> ns = std_filter(name, 6.5)
>>> with open('6.5_avg_grades_12_PRG_2526.csv', 'r') as f, open('6.5_avg_grades_12_PRG_2526.ref', 'r') as fref:
... 	l = f.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	lref = fref.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	while l != '' and lref == l:
... 		l = f.readline()
... 		lref = fref.readline()
... 	oeq = lref == l == ''
>>> ns == (5, 3) and oeq
True

>>> ns = std_filter(name, 7.5)
>>> with open('7.5_avg_grades_12_PRG_2526.csv', 'r') as f, open('7.5_avg_grades_12_PRG_2526.ref', 'r') as fref:
... 	l = f.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	lref = fref.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	while l != '' and lref == l:
... 		l = f.readline()
... 		lref = fref.readline()
... 	oeq = lref == l == ''
>>> ns == (5, 0) and oeq
True

>>> ns = std_filter(name, 8.5)
>>> with open('8.5_avg_grades_12_PRG_2526.csv', 'r') as f, open('8.5_avg_grades_12_PRG_2526.ref', 'r') as fref:
... 	l = f.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	lref = fref.readline()
... 	l = f.readline()
... 	lref = fref.readline()
... 	while l != '' and lref == l:
... 		l = f.readline()
... 		lref = fref.readline()
... 	oeq = lref == l == ''
>>> ns == (5, 0) and oeq
True