tkinter学习07

解决ubuntu系统 上没有tkinter模块的问题

rico@rico-VirtualBox:~/桌面$ python3 canves
Traceback (most recent call last):
  File "canves", line 3, in <module>
    import tkinter as tk
ModuleNotFoundError: No module named 'tkinter'
rico@rico-VirtualBox:~/桌面$ sudo apt-get install python3-tk
正在读取软件包列表... 完成
正在分析软件包的依赖关系树       
正在读取状态信息... 完成       
将会同时安装下列软件：
  blt libtcl8.6 libtk8.6 tk8.6-blt2.5
建议安装：
  blt-demo tcl8.6 tk8.6 tix python3-tk-dbg
下列【新】软件包将被安装：
  blt libtcl8.6 libtk8.6 python3-tk tk8.6-blt2.5
升级了 0 个软件包，新安装了 5 个软件包，要卸载 0 个软件包，有 239 个软件包未被升级。
需要下载 2,252 kB 的归档。
解压缩后会消耗 9,231 kB 的额外空间。
您希望继续执行吗？ [Y/n] y
获取:1 http://cn.archive.ubuntu.com/ubuntu bionic/main amd64 libtcl8.6 amd64 8.6.8+dfsg-3 [881 kB]

 已安装成功。

#!/usr/bin/python3

import tkinter as tk

window=tk.Tk()
window.title("my window")
window.geometry("200x200")

canvas = tk.Canvas(window, bg='blue', height=100, width=200)
canvas.pack()
image_file = tk.PhotoImage(file='ins.gif')
image = canvas.create_image(10, 10, anchor='nw', image=image_file)
x0, y0, x1, y1= 50, 50, 80, 80
line = canvas.create_line(x0, y0, x1, y1)
oval = canvas.create_oval(x0, y0, x1, y1, fill='red')  #创建一个圆，填充色为`red`红色
arc = canvas.create_arc(x0+30, y0+30, x1+30, y1+30, start=0, extent=180)  #创建一个扇形
rect = canvas.create_rectangle(100, 30, 100+20, 30+20)   #创建一个矩形
def moveit():
    canvas.move(rect, 0, 2)
b=tk.Button(window,text="move",command=moveit).pack()


window.mainloop()

#!usr/bin/python3
import tkinter as tk
import pickle
import tkinter.messagebox


window = tk.Tk()
window.title('Welcome to Mofan Python')
window.geometry('450x300')

# welcome image
canvas = tk.Canvas(window, height=200, width=500)
image_file = tk.PhotoImage(file='welcome.gif')
image = canvas.create_image(0,0, anchor='nw', image=image_file)
canvas.pack(side='top')

# user information
tk.Label(window, text='User name: ').place(x=50, y= 150)
tk.Label(window, text='Password: ').place(x=50, y= 190)

var_usr_name = tk.StringVar()
var_usr_name.set('example@python.com')
entry_usr_name = tk.Entry(window, textvariable=var_usr_name)
entry_usr_name.place(x=160, y=150)
var_usr_pwd = tk.StringVar()
entry_usr_pwd = tk.Entry(window, textvariable=var_usr_pwd, show='*')
entry_usr_pwd.place(x=160, y=190)

def usr_login():
    usr_name = var_usr_name.get()
    usr_pwd = var_usr_pwd.get()
    try:
        with open('usrs_info.pickle', 'rb') as usr_file:
            usrs_info = pickle.load(usr_file)
    except FileNotFoundError:
        with open('usrs_info.pickle', 'wb') as usr_file:
            usrs_info = {'admin': 'admin'}
            pickle.dump(usrs_info, usr_file)
    if usr_name in usrs_info:
        if usr_pwd == usrs_info[usr_name]:
            tk.messagebox.showinfo(title='Welcome', message='How are you? ' + usr_name)
        else:
            tk.messagebox.showerror(message='Error, your password is wrong, try again.')
    else:
        is_sign_up = tk.messagebox.askyesno('Welcome',
                               'You have not sign up yet. Sign up today?')
        if is_sign_up:
            usr_sign_up()

def usr_sign_up():
    def sign_to_Mofan_Python():
        np = new_pwd.get()
        npf = new_pwd_confirm.get()
        nn = new_name.get()
        with open('usrs_info.pickle', 'rb') as usr_file:
            exist_usr_info = pickle.load(usr_file)
        if np != npf:
            tk.messagebox.showerror('Error', 'Password and confirm password must be the same!')
        elif nn in exist_usr_info:
            tk.messagebox.showerror('Error', 'The user has already signed up!')
        else:
            exist_usr_info[nn] = np
            with open('usrs_info.pickle', 'wb') as usr_file:
                pickle.dump(exist_usr_info, usr_file)
            tk.messagebox.showinfo('Welcome', 'You have successfully signed up!')
            window_sign_up.destroy()

    window_sign_up = tk.Toplevel(window)
    window_sign_up.geometry('350x200')
    window_sign_up.title('Sign up window')

    new_name = tk.StringVar()
    new_name.set('example@python.com')
    tk.Label(window_sign_up, text='User name: ').place(x=10, y=10)
    entry_new_name = tk.Entry(window_sign_up, textvariable=new_name)
    entry_new_name.place(x=150, y=10)

    new_pwd = tk.StringVar()
    tk.Label(window_sign_up, text='Password: ').place(x=10, y=50)
    entry_usr_pwd = tk.Entry(window_sign_up, textvariable=new_pwd, show='*')
    entry_usr_pwd.place(x=150, y=50)

    new_pwd_confirm = tk.StringVar()
    tk.Label(window_sign_up, text='Confirm password: ').place(x=10, y=90)
    entry_usr_pwd_confirm = tk.Entry(window_sign_up, textvariable=new_pwd_confirm, show='*')
    entry_usr_pwd_confirm.place(x=150, y=90)

    btn_comfirm_sign_up = tk.Button(window_sign_up, text='Sign up', command=sign_to_Mofan_Python)
    btn_comfirm_sign_up.place(x=150, y=130)

# login and sign up button
btn_login = tk.Button(window, text='Login', command=usr_login)
btn_login.place(x=170, y=230)
btn_sign_up = tk.Button(window, text='Sign up', command=usr_sign_up)
btn_sign_up.place(x=270, y=230)

window.mainloop()

welcome.gif