yield 활용 2

개선 전

for row in range(height):
    for col in range(width):
        value = spreadsheet.get_value(col, row)
        do_something(value)
        
        if this_is_my_value(value):
            break  # ??? 이중 루프를 벗어날 수 없다. Exception 으로 처리 ???

 

 

개선 후

def range_2d(width, heigth):
    for y in range(height):
        for x in range(width):
            yield x, y
            
            
for col, row in range_2d(widht, height):
    value = spreadsheet.get_value(col, row)
    do_something(value)
    
    if this_is_my_value(value):
        break

 

 

참고: https://youtu.be/EnSu9hHGq5o?si=DSWSSlKspNST3cwQ