Python定义函数错误

Question

I need to make a function that will post an image in four segments on a canvas using turtle graphics, I have written the following functions

def locations(local):
# Move to location
    if local[1] =='Location 1':
        goto(-300,0)

    elif local[1] == "Location 2":
        goto(-150,0)

    elif local[1] == 'Location 3':
        goto(0,0)

    elif local[1] == "Location 4":
        goto(150,0)

# Get correct Orientation
    if local [2] == "Upright":
        setheading(0)
    elif local [2] == "Upside down":
        setheading(180)


def paste_up (arrangement):
    for sheets in arrangement:
        if (len(sheets)>1):
            print(sheets[1])
            for places in "Data_sets":
            if sheets [0] == 'Sheet A':
                locations(local)
                sheeta()
            elif sheets [0] == "Sheet B":
                sheetb()
            elif sheets [0] == 'Sheet C':
                sheetc()
            elif sheets [0] == 'Sheet D':
                sheetd()

I get this error:

NameError: name 'local' is not defined

How can I make my paste_up function refer to my locations function?

Answer 1

Assuming paste_up is defined OUTSIDE locations , you call locations(local) here:

if sheets [0] == 'Sheet A':
    locations(local)

but of course that local name was never defined. You'll have to add a parameter or define it (but since you give no info of what that is or where it comes from, that's all I can say)

Assuming paste_up is actually defined INSIDE locations , your code looks fine and you'll have to give us a traceback that says where the error occurs.