Python Tkinter中的按钮错误-选择文件，添加其路径

我的Tkinter代码有问题。代码的目标是有4个按钮，2个浏览按钮，用于选择要相互比较的领域。第三个是为输出的文件选择目标。第四个是提取我的python代码，用它来计算这两个文件

我的浏览按钮有问题，每当我在窗口中选择文件时，它们都会返回：

pathlabel.delete(0, END)
NameError: name 'pathlabel' is not defined

或

预期的结果是保存所选文件的路径，这样我就可以提取这些路径以在python代码中使用

我在网上查找了有关pathlabel和Infle函数的文档，但没有看到任何有用的内容。谁能看出我哪里出了问题，为什么会出现这些错误

有没有人对如何在本地保存路径（可能是一个变量）以便我以后可以提取它们有什么建议？到目前为止，我只取得了有限的成功

多谢各位

下面是我的代码：

import os
from Tkinter import *
from tkinter import filedialog

content = 'apple'
file_path = 'squarebot'

#FUNCTIONS
def browsefunc(): #browse button to search for files
    filename = filedialog.askopenfilename()
    infile = open(filename, 'r')
    content = infile.read()
    pathadd = os.path.dirname(filename)+filename

    pathlabel.delete(0, END)
    pathlabel.insert(0, pathadd)

    return content

def browsefunc2(): #browse button to search for files
    filename2 = filedialog.askopenfilename()
    infile = open(filename2, 'r')
    content = infile.read(filename2)
    pathadd = os.path.dirname(filename2)+filename2

    pathlabel.delete(0, END)
    pathlabel.insert(0, pathadd)

    return content

def process_file(content): #process reconciliation code
    print(content)

def directoryname():
    directoryname = filedialog.askdirectory() # pick a folder


#GUI

root = Tk()

root.title('Reconciliation Converter')
root.geometry("598x150")

mf = Frame(root)
mf.pack()


f1 = Frame(mf, width=600, height=250) #file1
f1.pack(fill=X)

f2 = Frame(mf, width=600, height=250) #file2
f2.pack(fill=X)

f3 = Frame(mf, width=600, height=250) #destination folder
f3.pack(fill=X)

f4 = Frame(mf, width=600, height=250) #reconcile button
f4.pack()

file_path = StringVar


Label(f1,text="Select file 1 (Only txt files)").grid(row=0, column=0, sticky='e') #file1 button
entry = Entry(f1, width=50, textvariable=file_path)
entry.grid(row=0,column=1,padx=2,pady=2,sticky='we',columnspan=25)

Label(f2,text="Select file 2 (Only csv files)").grid(row=0, column=0, sticky='e') #file2 button
entry = Entry(f2, width=50, textvariable=file_path)
entry.grid(row=0,column=1,padx=2,pady=2,sticky='we',columnspan=25)

Label(f3,text="Select Your Destination Folder").grid(row=0, column=0, sticky='e') #destination folder button
entry = Entry(f3, width=50, textvariable=directoryname)
entry.grid(row=0,column=1,padx=2,pady=2,sticky='we',columnspan=25)

Button(f1, text="Browse", command=browsefunc).grid(row=0, column=27, sticky='ew', padx=8, pady=4)#file1 button
Button(f2, text="Browse", command=browsefunc2).grid(row=0, column=27, sticky='ew', padx=8, pady=4)#file2 button
Button(f3, text="Browse", command=browsefunc).grid(row=0, column=27, sticky='ew', padx=8, pady=4)#destination folder button
Button(f4, text="RECONCILE NOW", width=32, command=lambda: process_file(content)).grid(sticky='ew', padx=10, pady=10)#reconcile button


root.mainloop()

---

请注意，此代码可以进行优化，但这应该可以让您继续：

import os
from tkinter import *
from tkinter import filedialog

content = 'apple'
file_path = 'squarebot'

#FUNCTIONS
def browsefunc(): #browse button to search for files
    filename = filedialog.askopenfilename()
    infile = open(filename, 'r')
    content = infile.read()
    pathadd = os.path.dirname(filename)+filename
    file_path1.set(pathadd)
    return content

def browsefunc2(): #browse button to search for files
    filename2 = filedialog.askopenfilename()
    infile = open(filename2, 'r')
    content = infile.read()
    pathadd = os.path.dirname(filename2)+filename2
    file_path2.set(pathadd)
    return content

def browsefunc3(): #browse button to search for files
    directory = filedialog.askdirectory(initialdir='.')
    directoryname.set(directory)
    return content

def process_file(content): #process reconciliation code
    print('------------------------------')
    print(file_path1.get())
    print(file_path2.get())
    print(directoryname.get())

#GUI

root = Tk()

root.title('Reconciliation Converter')
root.geometry("698x150")

mf = Frame(root)
mf.pack()

f1 = Frame(mf, width=600, height=250) #file1
f1.pack(fill=X)
f2 = Frame(mf, width=600, height=250) #file2
f2.pack(fill=X)
f3 = Frame(mf, width=600, height=250) #destination folder
f3.pack(fill=X)
f4 = Frame(mf, width=600, height=250) #reconcile button
f4.pack()

file_path1 = StringVar()
file_path2 = StringVar()
directoryname = StringVar()

Label(f1,text="Select file 1 (Only txt files)").grid(row=0, column=0, sticky='e') #file1 button
entry1 = Entry(f1, width=50, textvariable=file_path1)
entry1.grid(row=0,column=1,padx=2,pady=2,sticky='we',columnspan=25)

Label(f2,text="Select file 2 (Only csv files)").grid(row=0, column=0, sticky='e') #file2 button
entry2 = Entry(f2, width=50, textvariable=file_path2)
entry2.grid(row=0,column=1,padx=2,pady=2,sticky='we',columnspan=25)

Label(f3,text="Select Your Destination Folder").grid(row=0, column=0, sticky='e') #destination folder button
entry3 = Entry(f3, width=50, textvariable=directoryname)
entry3.grid(row=0,column=1,padx=2,pady=2,sticky='we',columnspan=25)

Button(f1, text="Browse", command=browsefunc).grid(row=0, column=27, sticky='ew', padx=8, pady=4)#file1 button
Button(f2, text="Browse", command=browsefunc2).grid(row=0, column=27, sticky='ew', padx=8, pady=4)#file2 button
Button(f3, text="Browse", command=browsefunc3).grid(row=0, column=27, sticky='ew', padx=8, pady=4)#destination folder button
Button(f4, text="RECONCILE NOW", width=32, command=lambda: process_file(content)).grid(sticky='ew', padx=10, pady=10)#reconcile button

root.mainloop()

---

为什么在执行代码时，文件_path1.get（）和文件_path2（）都会附加到directoryname.get（）中？谢谢你的帮助！我真的很感激。我不确定我是否理解，你说的“附加到”是什么意思？这段代码所做的就是打印出从条目中检索到的路径。在您的代码中，您使用pathadd=os.path.dirname（filename2）+filename2和pathadd=os.path.dirname（filename）+filename打印目录路径，然后在目录路径后附加文件路径，创建一个不存在的路径。我只是把它切换到了os.path.join（filename，filename），它有一个“智能”连接功能，可以连接两个路径，同时删除冗余。这是您的原始代码，但连接也是一个选项。但是，您可能希望检查以下内容：

import os
from tkinter import *
from tkinter import filedialog

content = 'apple'
file_path = 'squarebot'

#FUNCTIONS
def browsefunc(): #browse button to search for files
    filename = filedialog.askopenfilename()
    infile = open(filename, 'r')
    content = infile.read()
    pathadd = os.path.dirname(filename)+filename
    file_path1.set(pathadd)
    return content

def browsefunc2(): #browse button to search for files
    filename2 = filedialog.askopenfilename()
    infile = open(filename2, 'r')
    content = infile.read()
    pathadd = os.path.dirname(filename2)+filename2
    file_path2.set(pathadd)
    return content

def browsefunc3(): #browse button to search for files
    directory = filedialog.askdirectory(initialdir='.')
    directoryname.set(directory)
    return content

def process_file(content): #process reconciliation code
    print('------------------------------')
    print(file_path1.get())
    print(file_path2.get())
    print(directoryname.get())

#GUI

root = Tk()

root.title('Reconciliation Converter')
root.geometry("698x150")

mf = Frame(root)
mf.pack()

f1 = Frame(mf, width=600, height=250) #file1
f1.pack(fill=X)
f2 = Frame(mf, width=600, height=250) #file2
f2.pack(fill=X)
f3 = Frame(mf, width=600, height=250) #destination folder
f3.pack(fill=X)
f4 = Frame(mf, width=600, height=250) #reconcile button
f4.pack()

file_path1 = StringVar()
file_path2 = StringVar()
directoryname = StringVar()

Label(f1,text="Select file 1 (Only txt files)").grid(row=0, column=0, sticky='e') #file1 button
entry1 = Entry(f1, width=50, textvariable=file_path1)
entry1.grid(row=0,column=1,padx=2,pady=2,sticky='we',columnspan=25)

Label(f2,text="Select file 2 (Only csv files)").grid(row=0, column=0, sticky='e') #file2 button
entry2 = Entry(f2, width=50, textvariable=file_path2)
entry2.grid(row=0,column=1,padx=2,pady=2,sticky='we',columnspan=25)

Label(f3,text="Select Your Destination Folder").grid(row=0, column=0, sticky='e') #destination folder button
entry3 = Entry(f3, width=50, textvariable=directoryname)
entry3.grid(row=0,column=1,padx=2,pady=2,sticky='we',columnspan=25)

Button(f1, text="Browse", command=browsefunc).grid(row=0, column=27, sticky='ew', padx=8, pady=4)#file1 button
Button(f2, text="Browse", command=browsefunc2).grid(row=0, column=27, sticky='ew', padx=8, pady=4)#file2 button
Button(f3, text="Browse", command=browsefunc3).grid(row=0, column=27, sticky='ew', padx=8, pady=4)#destination folder button
Button(f4, text="RECONCILE NOW", width=32, command=lambda: process_file(content)).grid(sticky='ew', padx=10, pady=10)#reconcile button

root.mainloop()