类型错误：“PhotoImage”对象不可调用 - Python Tkinter

编程问答 2022-04-24

问题描述

所以我一直在尝试用 tkinter 构建一个简单的文本编辑器，但不幸的是，当我在 Python 中使用 open() 函数打开特定文件时，出现错误，说“TypeError: 'PhotoImage' object is not callable ' 在第 83 行。这与 PhotoImage 有什么关系？ 这可能与 Image.open() 有关吗？ 代码如下：

from tkinter import *
from tkinter import filedialog,messageBox,ttk
import time
from tkinter.ttk import *
lim = 0
keyItems = ['s','x','v','c','o','h','e','n']
def disable_event():
  pass
def creating():
  window.destroy()
  import tkintercontinued
def motion(event):
  textt.config(text='Mouse x: {} Mouse Y: {}'.format(event.x,event.y))
def ssf(event):
  global lim
  if event.keysym == 'Control_L':
      lim = 1
  if lim == 1:
      if event.keysym.lower() == keyItems[0]:
          saveFile()
      elif event.keysym.lower() == keyItems[1] or event.keysym.lower() == keyItems[2] or event.keysym.lower() == keyItems[3]:
          pass
      elif event.keysym.lower() == keyItems[4]:
          openfiles()
      elif event.keysym.lower() == keyItems[5]:
          shortcut()
      elif event.keysym.lower() == keyItems[6]:
          quits()
      elif event.keysym.lower() == keyItems[7]:
          creating()
def install():
  x = 0
  while x < 100:
      bar['value'] += 1
      time.sleep(0.05)
      x+= 1
      p.set(str(x)+ '%')
      window.update_idletasks()
  bar.destroy()
def shortcut():
  e = Tk()
  text = '''This is the help page of a simple text editor (Work-in-progress)
You can use special keys to use commands in the menubar,rather than actually clicking on them!
            -> CTRL + S = Save
            -> CTRL + X = Cut
            -> CTRL + V = Paste
            -> CTRL + C = copy
            -> CTRL + O = Open
            -> CTRL + H = Help
            -> CTRL + E = Exit
            -> CTRL + N = Create New
            
      '''
  x = Label(e,text=text,font=('Century Gothic',10))

  x.pack()
def cut():
  pass
def copy():
  pass
def paste():
  pass
def quits():
  e = messageBox.askyesno(title='Exit File',message='Do you want to exit?')
  if e == 1:
      window.grab_release()
      quit()

      return
  else:
      return
def openfiles():
  oo = filedialog.askopenfilename(initialdir="C:/Users/baris/OneDrive/Desktop",title="opening file...",filetypes=[('Text Files','*.txt'),('Excel Spreadsheet','*.xlsx *.xls'),('Word Documents','*.docx *.doc *.docm *.odt *.dot *dotx'),('Python Files','*.py'),('All Files','*.*')]
                                        )
  if len(oo) > 1:
      with open(oo) as x:
          text.insert(INSERT,'Text Imported Successfully! \n')
          text.insert(INSERT,x.read())
          x.close()


window = Tk()
def saveFile():
  file = filedialog.asksaveasfile(initialdir="C:\Games\Python",defaultextension='.txt','*.*')])
  if file is None:
      return
  filetext = str(text.get(1.0,END))
  file.write(filetext)
  file.close()
nm = 'C:\\Users\\baris\\Downloads'
notebook = ttk.Notebook(window)
tab1 = Frame(notebook)
tab2 = Frame(notebook)
notebook.add(tab1,text='Tab1')
notebook.add(tab2,text='Tab2')
notebook.pack(expand=True,fill='both')
def Photos(filename,x,y):
  return PhotoImage(file=filename).subsample(x,y)
save = Photos(nm + '\save.png',25,25)
open = Photos(nm + '\open.png',10,10)
cutf = Photos(nm + '\cut.png',15,15)
copyf = Photos(nm + '\copy.png',5,5)
pastef = Photos(nm + '\paste.png',15)
new = Photos(nm + '\\new.png',25)
exit = Photos(nm + '\exit.png',20,20)
help = Photos(nm + '\help.png',15)
p = StringVar()
pLabel = Label(window,textvariable=p).pack()
text = Text(tab1)
bar = Progressbar(window,orient=HORIZONTAL,length=300)
bar.pack(pady=10)
dwnld = Button(window,text='Download',command=install).pack()
text.pack()
textt = Label(window)
textt.pack()
menubar = Menu(window)
window.config(menu=menubar)
fileMenu = Menu(menubar,tearoff=0,10))
editMenu = Menu(menubar,10))
helpMenu = Menu(menubar,10))
menubar.add_cascade(label='File',menu=fileMenu)
menubar.add_cascade(label='Edit',menu=editMenu)
menubar.add_cascade(label='Help',menu=helpMenu)
######
helpMenu.add_command(label='Help',command=shortcut,image=help,compound='left')
editMenu.add_command(label='Cut',command=cut,image=cutf,compound='left')
editMenu.add_command(label='copy',command=copy,image=copyf,compound='left')
editMenu.add_command(label='Paste',command=paste,image=pastef,compound='left')
fileMenu.add_command(label='Open...',command=openfiles,image=open,compound='left')
fileMenu.add_command(label='Save As...',command=saveFile,image=save,compound='left')
fileMenu.add_command(label='Create New...',command=creating,image=new,compound='left')
fileMenu.add_separator()
fileMenu.add_command(label='Exit',command=quits,image=exit,compound='left')
canvas = Canvas(window,height=50,width=50)
canvas.create_arc(0,50,fill="red",extent=180,width=1)
canvas.create_arc(0,fill="white",start=180,width=1)
canvas.create_oval(19,19,31,width=1)
canvas.pack()
window.bind('<Key>',ssf)
window.bind('<Motion>',motion)
window.mainloop()

解决方法

问题是您将内置函数 open 作为变量分配给 PhotoImage。现在，当您调用 open 时，它会获取 open 变量的值，因为它已被赋值。这将导致错误。这就是为什么你永远不应该使用内置函数作为变量的原因。您可以使用 open_img 或任何非关键字、内置函数、您定义的函数。

open = Photos(nm + '\open.png',10,10)，这是一个错误

open_img = Photos(nm + '\open.png',10) 这行得通。

然后将菜单更新为 fileMenu.add_command(label='Open...',command=openfiles,image=open_img,compound='left')

photoimagepythontktktkinter