Question

所以我是tKinter的新手以及在python中使用我所使用的程度。我已就这个主题做了很多研究，但我很难将它们放在一起。问题是;我在我的主类下有def函数，第一个是def class_Window（创建一个电子表格），另一个是def按钮（基本上是为了保存我创建的所有按钮）。我正在使用tkintertable.Tables.TableCanvas保存功能制作一个保存表按钮，制作一个pickle文件。对于我的生活，我无法弄清楚如何将按钮链接到define函数中的表类。

我得到的错误是语法无效或没有属性。

任何有关如何解决这个问题的帮助都很棒

class AccuracyAssessmentApp:
def __init__(self, parent=Tk()):
    self.mainWindow = (parent)
    self.mainWindow.title("Accuracy Assessment")
    self.mainWindow.geometry("1000x700")
    self.make_txt()
    self.pos_lbl()
    self.buttons()
    self.class_Window()
    self.title_label()


def make_txt(self):
    self.text = Text(self.mainWindow, width = 80, height = 40, background = "#A8A8A8")
    self.text.pack(expand = TRUE, fill = BOTH)


def pos_lbl(self):
    self.pos = Label(self.mainWindow, text = "0,0")
    self.pos.place(x=0, y=0)

    self.pos1 = Label(self.mainWindow, text = "0,350")
    self.pos1.place(x=0, y=350)

    self.pos2 = Label(self.mainWindow, text = "500,0")
    self.pos2.place(x=500, y=0)

def class_Window(self):
    self.tableFrame = Frame()
    self.tableFrame.place(x=680,y=200)
    self.table = TableCanvas(self.tableFrame, rows=30,cols=2, width=240)
    self.table.createTableFrame()

def title_label(self):
    self.titleFrame = Frame(self.mainWindow, bg= '#4A766E', relief="raised", bd=10)
    self.titleFrame.place(x=385, y=20)
    self.title = Label(self.titleFrame, text=("""Accuracy Assessment"""), font=LARGE_FONT, bg= '#4A766E', fg="white", justify="center")
    self.title.pack(pady=10, padx=10)

def buttons(self):
    Button(self.mainWindow, text="Quit", command=self.mainWindow.destroy).place(x=10,y=665)
    Button(self.mainWindow, text="Save", command=self.table.save("AssessmentTable"))

这是我得到的错误：

runfile('I:/Custom_Scripts/Personal/AccuracyAssessment/AccuracyAssessment_v2.py', wdir='I:/Custom_Scripts/Personal/AccuracyAssessment')
Traceback (most recent call last):

  File "<ipython-input-1-d9c198c0cd24>", line 1, in <module>
    runfile('I:/Custom_Scripts/Personal/AccuracyAssessment/AccuracyAssessment_v2.py', wdir='I:/Custom_Scripts/Personal/AccuracyAssessment')

  File "C:\Users\jpc08005\AppData\Local\Continuum\Anaconda2\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 699, in runfile
    execfile(filename, namespace)

  File "C:\Users\jpc08005\AppData\Local\Continuum\Anaconda2\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 74, in execfile
    exec(compile(scripttext, filename, 'exec'), glob, loc)

  File "I:/Custom_Scripts/Personal/AccuracyAssessment/AccuracyAssessment_v2.py", line 79, in <module>
    app = AccuracyAssessmentApp()

  File "I:/Custom_Scripts/Personal/AccuracyAssessment/AccuracyAssessment_v2.py", line 41, in __init__
    self.buttons()

  File "I:/Custom_Scripts/Personal/AccuracyAssessment/AccuracyAssessment_v2.py", line 75, in buttons
    Button(self.mainWindow, text="Save", command=self.table.save("AssessmentTable"))

AttributeError: AccuracyAssessmentApp instance has no attribute 'table'

Answer 1

考虑以下代码：

Button(..., command=self.table.save("AssessmentTable"))

您在创建按钮时立即呼叫self.table.save("AssessmentTable")。在创建self.table之前调用此方法。因此，您会收到属性错误。

单击按钮时，只需调用self.table.save即可。最简单的解决方案是创建一个保存表的函数，然后在回调中引用该按钮：

def save_table(self):
    self.table.save("AssessmentTable")

def buttons(self):
    Button(..., command=self.save_table)

在类

1 个答案: