[已解决]tkinter的text显示没有insert属性

yjj004335

from tkinter import *
from tkinter import filedialog
from tkinter import messagebox
import csv
from sklearn.linear_model import LinearRegression
from sklearn.model_selection import train_test_split
import numpy as np
from sklearn.linear_model import Ridge

root = Tk()
root.title("数据分析")
root.minsize(800,500)

file_name_var = StringVar()
num1 = StringVar()
num2 = StringVar()


def openfile():
    file_name = filedialog.askopenfilename(filetypes=[("csvfile","*.csv")])
    file_name_var.set(file_name)

def linear():
    numx = int(num1.get())
    numy = float(num2.get())
    data = np.genfromtxt(file_name_var.get(),delimiter=",")
    x_data = data[1:,0:numx-1]
    y_data = data[1:,-1]
    lr = Ridge(alpha=numy).fit(x_data,y_data)
    coef = list(lr.coef_)
    intercept = lr.intercept_
    R = lr.score(x_data,y_data)
   
    with open(file_name_var.get()) as f:
        reader = csv.reader(f)
        header_row = next(reader)
        numz = numx-1
        z = ""
        while numz:
            numz -= 1
            z += str(coef[numz]) + "*" + header_row[numz] + " "
        model = header_row[-1] + "=" + z + "\n"
        result = model + "\n" + "R值：" + str(R) + "\n"
    t.insert("insert",result)

   
        

"""
def test():
    if not re.findall('[0-9]+',str(num1.get())) or not re.findall('[0-9]+',str(num2.get())):
        messagebox.showwarning("警告","只能输入数字")
"""


# 创建界面中其他按键
b0 = Button(root,text="选择文件",font="微软雅黑", width=15,command=openfile).grid(
    row=0,column=0,pady=5,padx=5)
e0 = Entry(root,textvariable=file_name_var,state=DISABLED,font="微软雅黑").grid(
    row=0,column=1,pady=5,columnspan=4,sticky=W+E)
l1 = Label(root,text="响应所在列:",font="微软雅黑", width=20).grid(row=1,column=0,
    pady=5)
e1 =Entry(root,textvariable=num1, font="微软雅黑").\
    grid(row=1,column=1,pady=5)
l2 = Label(root,text="Alpha值:",font="微软雅黑", width=20).grid(row=1,column=2,
    pady=5)
e2 =Entry(root,textvariable=num2, font="微软雅黑").\
    grid(row=1,column=3,padx=5,pady=5)
b1 = Button(root,text="执行建模",font="微软雅黑",width=20,height=1,command=linear).grid(
    row=1,column=4,padx=5)
t = Text(root,font="微软雅黑").grid(row=2,column=2,columnspan=3,padx=5,pady=5)


mainloop()




就是第44行，想在t中显示，运算的结果，调试显示'NoneType' object has no attribute 'insert'

最佳答案

月排行榜 / 总排行榜

XiaoPaiShen

2019-12-23 02:16:30

没在电脑旁，只能目测

t = Text(root,font="微软雅黑")
t.grid(row=2,column=2,columnspan=3,padx=5,pady=5)

跳转到最佳答案楼层

塔利班

grid没有返回值，你要用的是实例对象，然后调用方法，而不是想当然grid给你text控件

yjj004335

塔利班 发表于 2019-12-22 21:24
grid没有返回值，你要用的是实例对象，然后调用方法，而不是想当然grid给你text控件

该怎么改呢

XiaoPaiShen

没在电脑旁，只能目测

t = Text(root,font="微软雅黑")
t.grid(row=2,column=2,columnspan=3,padx=5,pady=5)