Python 将列表传递给导入的函数

我将以下程序中的函数放入一个模块中，但当我将该模块导入一个单独的程序并调用这些函数时，我得到一个错误（见下文）。我需要做什么才能使用模块使函数正确运行？非常感谢您的帮助

原始程序：

def print_m(unprinted, completed):
    while unprinted:
        current = unprinted.pop()
        print("Printing: " + current)
        completed.append(current)

def show_completed(completed):
    print("\nThe following have been printed:")
    for completed_item in completed:
        print(completed_item)

unprinted = ['star', 'sword', 'model']
completed = []

print_m(unprinted, completed)
show_completed(completed)

将函数放入模块-printing_functions.py：

def print_m(unprinted, completed):
    while unprinted:
        current = unprinted.pop()
        print("Printing: " + current)
        completed.append(current)

def show_completed(completed):
    print("\nThe following have been printed:")
    for completed_item in completed:
        print(completed_item)

编写了单独的程序来导入模块：

import printing_functions as pf

unprinted = ['star', 'sword', 'model']
completed = []

pf.print_m(unprinted, completed)
pf.show_completed(completed)

运行该程序时，出现以下错误：

NameError: name 'completed' is not defined

---

更新：

我在上面的代码中使用了较短的术语，它看起来确实有效，这让我更加困惑。在下面发布原始代码。如果上面的工作，为什么下面的模块不工作

def print_models(unprinted_designs, completed_designs):
    """
    Simulate printing each design, until none are left.
    Move each design to completed_models after printing.
    """
    while unprinted_designs:
        current_design = unprinted_designs.pop()

         #Simulate creating a 3D print from the design.
        print("Printing model: " + current_design)
        completed_models.append(current_design)

def show_completed_models(completed_models):
    """Show all the models that were printed."""
    print("\nThe following models have been printed:")
    for completed_model in completed_models:
        print(completed_model)

unprinted_designs = ['iphone case', 'robot pendant', 'dodecahedron']
completed_models = []

print_models(unprinted_designs, completed_models)
show_completed_models(completed_models)

---

模块

def print_models(unprinted_designs, completed_designs):
    """
    Simulate printing each design, until none are left.
    Move each design to completed_models after printing.
    """
    while unprinted_designs:
        current_design = unprinted_designs.pop()

         #Simulate creating a 3D print from the design.
        print("Printing model: " + current_design)
        completed_models.append(current_design)

def show_completed_models(completed_models):
    """Show all the models that were printed."""
    print("\nThe following models have been printed:")
    for completed_model in completed_models:
        print(completed_model)

---

新节目

import printing_functions as pf

unprinted_designs = ['iphone case', 'robot pendant', 'dodecahedron']
completed_models = []

pf.print_models(unprinted_designs, completed_models)
pf.show_completed_models(completed_models)

---

回溯：

回溯（最近一次呼叫最后一次）： 文件“/home/pi/Documents/Python Projects/Python_work/8-15_printing_models.py”，第6行，在 pf.打印模型（未打印的设计、已完成的模型） 文件“/home/pi/Documents/Python Projects/Python\u work/printing\u functions.py”，第11行，在print\u模型中 已完成的\u模型。追加（当前\u设计）

---

NameError:name“completed_models”没有如上所述定义

，这可以正常工作；我无法重现这个错误。请你发布整个回溯，而不仅仅是最后一行吗？@Fortunato谢谢你的回复。我最初发布的代码确实有效，这让我更加困惑。我缩短了条件，使其更容易张贴，以某种方式解决了问题。我继续发布了完整的程序，上面有完整的回溯。我已经一遍又一遍地看了一遍，但是当我将函数拆分成一个单独的模块时，仍然会产生一个错误。@Josh我编辑了我的文章，以包含完整的回溯和我正在处理的完整代码。当我在我最初的帖子中缩写这些术语时，它不知怎么解决了我的问题，但我还是不知道怎么做。谢谢你的帮助，找到了！术语“完成的设计”被输入到打印模型的定义中，而不是“完成的模型”。不知何故，当所有内容都在一个文件中时，它仍然运行良好，但当我将函数复制到一个模块文件中时，它挂起了。