我有以下代码：
from Tkinter import *
class App(Frame):
def __init__(self, master):
Frame.__init__(self, master)
self.grid()
self.create_widgets()
def create_widgets(self):
self.entryLabel = Label(self, text="Please enter a list of numbers (no commas):")
self.entryLabel.grid(row=0, column=0, columnspan=2)
self.listEntry = Entry(self)
self.listEntry.grid(row=0, column=2, sticky=E)
self.entryLabel = Label(self, text="Please enter an index value:")
self.entryLabel.grid(row=1, column=0, columnspan=2, sticky=E)
self.indexEntry = Entry(self)
self.indexEntry.grid(row=1, column=2)
self.runBttn = Button(self, text="Run Function", command=self.psiFunction)
self.runBttn.grid(row=2, column=0, sticky=W)
self.answerLabel = Label(self, text="Output List:")
self.answerLabel.grid(row=2, column=1, sticky=W)
def psiFunction(self):
j = int(self.indexEntry.get())
valueList = list(self.listEntry.get())
x = map(int, valueList)
if x[0] != 0:
x.insert(0, 0)
rtn = []
for n2 in range(0, len(x) * j - 2):
n = n2 / j
r = n2 - n * j
rtn.append(j * x[n] + r * (x[n + 1] - x[n]))
self.answer = Label(self, text=rtn)
self.answer.grid(row=2, column=2, sticky=W)
if __name__ == "__main__":
root = Tk()
app = App(root)
root.mainloop()
但每次我尝试运行它时都会出现语法错误。特别是，它告诉我缩进存在问题（意外缩进）。我无法在 IDLE 中运行它，因为 mainloop 会产生问题，而且我似乎在尝试通过终端甚至 Komodo 运行它时遇到了错误。有没有人有把握，一步一步让它运行？真的有语法错误吗？谢谢。