为什么 tkinter 文本小部件搞砸了我的单元格大小？
Why is the tkinter text widget screwing up my cell sizes?
如下图 1 所示，一切顺利。所有的单元格都是相同的完美尺寸。这很棒。
但接下来是文本框的实现。一切都乱套了。如第二张图片所示，它完全破坏了我的网格布局。我不希望文本框调整单元格大小，我希望它像所有其他小部件一样去我告诉它去的地方。我为此花了几个小时，但无济于事！
import tkinter as tk
from tkinter import ttk, scrolledtext
root = tk.Tk()
root.state('zoomed')
root.configure(background='#8585ad')
for i in range(0,20):
for x in range(0,20):
root.columnconfigure(i, weight=1)
root.rowconfigure(x, weight=1)
for i in range(0, 20): # 0-19(20 is excluded) so this will loop 10x
for x in range(0, 20):
tk.Label(root, text=f"C-{i}, R-{x}", bg="green", fg="white").grid(column=i, row=x, sticky="NSEW", padx=1, pady=1)
main_frame = tk.Label(root, text="MAIN FRAME", bg="blue", fg="white", anchor="n").grid(column=1, row=1, columnspan=18, rowspan=18, sticky="NSEW")
frame1 = tk.Label(root, text="FRAME 1", bg="red", fg="white", anchor="n").grid(column=2, row=2, columnspan=3, rowspan=16, sticky="NSEW")
frame2 = tk.Label(root, text="FRAME 2", bg="green", fg="white", anchor="n").grid(column=6, row=2, columnspan=6, rowspan=16, sticky="NSEW")
frame3 = tk.Label(root, text=" FRAME 3", bg="red", fg="white", anchor="n").grid(column=13, row=2, columnspan=5, rowspan=16, sticky="NSEW")
for i in range(2, 5): # start at 2 and end after the 3rd loop.
for x in range(3, 18): # to loop 15x and for index to start at 3 so i then put (3,18), 18-3 = 15
tk.Label(root, text=f"Button-{(x-2)}", bg="white", fg="black").grid(column=i, row=x, sticky="EW", padx=5, pady=5)
frame1_header = tk.Label(root, text="User Panel", bg="black", fg="white").grid(column=2, row=2, columnspan=3, sticky="SEW", padx=5, pady=5)
frame2_header = tk.Label(root, text="Editor", bg="black", fg="white").grid(column=6, row=2, columnspan=6, sticky="SEW", padx=5, pady=5)
frame3_header = tk.Label(root, text="Info Panel", bg="black", fg="white").grid(column=13, row=2, columnspan=5, sticky="SEW", padx=5, pady=5)
frame2_text_area = tk.Label(root, text="Text Box", bg="black", fg="white", anchor="center").grid(column=6, row=3, columnspan=4, rowspan=15, sticky="NSEW", padx=5, pady=5)
frame2_list_box = tk.Label(root, text="List Box", bg="grey", fg="white", anchor="center").grid(column=10, row=3, columnspan=2, rowspan=15, sticky="NSEW", padx=5, pady=5)
frame3_tab_panel = ttk.Notebook(root)
frame3_tab_panel.grid(column=13, row=3, columnspan=5, rowspan=15, sticky="NSEW", padx=5, pady=5)
tab1 = ttk.Frame(root)
tab2 = ttk.Frame(root)
tab3 = ttk.Frame(root)
frame3_tab_panel.add(tab1, text ='Generic Editor')
frame3_tab_panel.add(tab2, text ='Text Compare')
frame3_tab_panel.add(tab3, text ='Script Ref')
# width and height does indeed adjust the texbox size but the textbox still isnt properly sticking to the grid that i set.
frame3_tab_panel_tab1 = tk.Text(root, relief="ridge", bd=2, undo=True, wrap="none", background='#1E1E1E', insertbackground='white')#, width=40, height=10)
frame3_tab_panel_tab1.grid(column=13, row=4, columnspan=5, rowspan=14, padx=5, pady=5)
frame3_tab_panel_tab1.config(font=('Consolas bold',10), fg="white")
frame3_tab_panel_tab1.focus()
root.mainloop()
"""
text_area = scrolledtext.ScrolledText(tab1, wrap = tk.WORD, width=40, height=10, font=("Times New Roman", 15))
text_area.grid(column = 0, pady = 10, padx = 10)
text_area.focus()
"""
没有文本框。正如您所见，一切都非常均匀。
仅供参考：这只是我正在处理的一个模板，因此我可以更好地理解 tk 的定位。
文本框没有相应地调整自身并适应我设置的网格，从而破坏了网格。
改变
frame3_tab_panel_tab1.grid(
column=13, row=4, columnspan=5, rowspan=14, padx=5, pady=5
)
至
frame3_tab_panel_tab1.grid(
column=13, row=4, columnspan=5, rowspan=14, padx=5, pady=5,
sticky="NSEW"
)
我设法通过将 Text() 小部件替换为 scrolledtext.ScrolledText() 小部件来解决它。真奇怪。不需要网格，如果我删除高度和宽度，它就会把它弄乱。为什么高度和宽度会有这样的影响？为什么当你有像列和行这样的配置以及粘性时它甚至存在。 Tkinter 有时对其逻辑非常混乱。不过不管怎样，总算是到了。
这是代码，以防有人遇到类似问题。
import tkinter as tk
from tkinter import ttk, scrolledtext
root = tk.Tk()
root.state('zoomed')
root.configure(background='#8585ad')
for i in range(0,20):
for x in range(0,20):
root.columnconfigure(i, weight=1)
root.rowconfigure(x, weight=1)
for i in range(0, 20): # 0-19(20 is excluded) so this will loop 10x
for x in range(0, 20):
tk.Label(root, text=f"C-{i}, R-{x}", bg="green", fg="white").grid(column=i, row=x, sticky="NSEW", padx=1, pady=1)
main_frame = tk.Label(root, text="MAIN FRAME", bg="blue", fg="white", anchor="n").grid(column=1, row=1, columnspan=18, rowspan=18, sticky="NSEW")
frame1 = tk.Label(root, text="FRAME 1", bg="red", fg="white", anchor="n").grid(column=2, row=2, columnspan=3, rowspan=16, sticky="NSEW")
frame2 = tk.Label(root, text="FRAME 2", bg="green", fg="white", anchor="n").grid(column=6, row=2, columnspan=6, rowspan=16, sticky="NSEW")
frame3 = tk.Label(root, text=" FRAME 3", bg="red", fg="white", anchor="n").grid(column=13, row=2, columnspan=5, rowspan=16, sticky="NSEW")
for i in range(2, 5): # start at 2 and end after the 3rd loop.
for x in range(3, 18): # to loop 15x and for index to start at 3 so i then put (3,18), 18-3 = 15
tk.Label(root, text=f"Button-{(x-2)}", bg="white", fg="black").grid(column=i, row=x, sticky="EW", padx=5, pady=5)
frame1_header = tk.Label(root, text="User Panel", bg="black", fg="white").grid(column=2, row=2, columnspan=3, sticky="SEW", padx=5, pady=5)
frame2_header = tk.Label(root, text="Editor", bg="black", fg="white").grid(column=6, row=2, columnspan=6, sticky="SEW", padx=5, pady=5)
frame3_header = tk.Label(root, text="Info Panel", bg="black", fg="white").grid(column=13, row=2, columnspan=5, sticky="SEW", padx=5, pady=5)
frame2_text_area = tk.Label(root, text="Text Box", bg="black", fg="white", anchor="center").grid(column=6, row=3, columnspan=4, rowspan=15, sticky="NSEW", padx=5, pady=5)
frame2_list_box = tk.Label(root, text="List Box", bg="grey", fg="white", anchor="center").grid(column=10, row=3, columnspan=2, rowspan=15, sticky="NSEW", padx=5, pady=5)
frame3_tab_panel = ttk.Notebook(root)
frame3_tab_panel.grid(column=13, row=3, columnspan=5, rowspan=15, sticky="NSEW", padx=5, pady=5)
frame3_tab_panel_tab1 = scrolledtext.ScrolledText(root, bd=2, undo=True, wrap="none", width=40, height=10, font=("Times New Roman", 15), background='#1E1E1E', insertbackground='white')
frame3_tab_panel_tab1.config(font=('Consolas bold',10), fg="white")
frame3_tab_panel_tab1.focus()
tab2 = ttk.Frame(root)
tab3 = ttk.Frame(root)
frame3_tab_panel.add(frame3_tab_panel_tab1, text ='Generic Editor')
frame3_tab_panel.add(tab2, text ='Text Compare')
frame3_tab_panel.add(tab3, text ='Script Ref')
root.mainloop()
你的代码中有很多错误，你真的应该接受 a good tutorial for tkinter and you may wish to have a 。
最大的问题是什么导致您的代码与您预期的不同，您总是将根定义为主。每个小部件，除了 root window 之外，都有一个 master 并且由每个小部件需要的唯一位置参数设置。 请注意，如果给出 None，则默认设置根 window。这是因为 tkinter 是按层次结构构建的，并且在这个层次结构的顶部是 root window（tk.Tk() 的实例）。
master 应该是一个容器，这意味着根 window、Toplevel 或 Frame。大师可以有所谓的 children，它可以是所有其他小部件加上作为 children 处理的框架。 master 和 frame 之间的关系是多种多样的，但是对于这个问题的范围，我们将只看几何。
每个小部件都有一个几何图形，可以被 universal widget method .winfo_geometry() that will give you a geometry string 'widthxheight±x_offset±y_offset'（例如 '120x50-0+20'）接收。几何字符串是每个计算的基础，以订购您的小部件，您可以通过选择几何管理器和不同的可选关键字来影响它。使用这些信息将创建一个输出并显示在您的屏幕上。
建议：
import tkinter as tk
from tkinter import ttk, scrolledtext
def populate_frame_1():
frame_1_label = tk.Label(frame_1,text='User Panel',
background = 'black',
foreground = 'white')
frame_1_label.grid(column=0,row=0,sticky='ew',columnspan=3)
frame_1.columnconfigure(0,weight=1)
frame_1.columnconfigure(1,weight=1)
frame_1.columnconfigure(2,weight=1)
for i in range(0, 3):
for x in range(1, 16):
l = tk.Button(frame_1, text=f"Button-{(x-2)}",
bg="white", fg="black")
l.grid(column=i, row=x, sticky="EW", padx=5, pady=5)
def populate_frame_2():
frame_2_label = tk.Label(frame_2,text='Editor',
background = 'black',
foreground = 'white')
textbox = tk.Text(frame_2,width=35)
listbox = tk.Listbox(frame_2,bg='yellow')
frame_2_label.grid(column=0,row=0,sticky='ew',columnspan=6)
textbox.grid(column=0,row=1,sticky='ns',columnspan=4)
listbox.grid(column=4,row=1,sticky='ns',columnspan=2)
frame_2.rowconfigure(1,weight=2)
def populate_frame_3():
frame_3_label = tk.Label(frame_3,text='Info Panel',
background = 'black',
foreground = 'white')
frame_3_label.grid(column=0,row=0,sticky='ew',columnspan=5)
control_panel = ttk.Notebook(frame_3)
tab1 = ttk.Frame(control_panel)
tab2 = ttk.Frame(control_panel)
tab3 = ttk.Frame(control_panel)
control_panel.add(tab1, text ='Generic Editor')
control_panel.add(tab2, text ='Text Compare')
control_panel.add(tab3, text ='Script Ref')
control_panel.grid(column=0,row=1,sticky='nswe')
frame3_tab_panel_tab1 = tk.Text(tab1, relief="ridge", bd=2, undo=True,
wrap="none", background='#1E1E1E',
insertbackground='white',width=40, height=10)
frame3_tab_panel_tab1.pack(fill=tk.BOTH,expand=True)
frame3_tab_panel_tab1.config(font=('Consolas bold',10), fg="white")
frame3_tab_panel_tab1.focus()
frame_3.rowconfigure(1,weight=2)
frame_3.columnconfigure(0,weight=2)
XOFFSET = 75
YOFFSET = 50
root = tk.Tk()
root.state('zoomed')
root.configure(background='#8585ad')
main_frame = tk.Frame(root,background='blue')
frame_1 = tk.Frame(main_frame,background='red')
frame_2 = tk.Frame(main_frame,background='green')
frame_3 = tk.Frame(main_frame,background='red')
main_frame.pack(fill=tk.BOTH,expand=True,
padx=XOFFSET,pady=YOFFSET)
frame_1.pack(side=tk.LEFT,fill=tk.BOTH,padx=XOFFSET,pady=YOFFSET,expand=True)
frame_2.pack(side=tk.LEFT,fill=tk.Y,pady=YOFFSET,expand=True)
frame_3.pack(side=tk.LEFT,fill=tk.BOTH,padx=XOFFSET,pady=YOFFSET,expand=True)
populate_frame_1()
populate_frame_2()
populate_frame_3()
root.mainloop()
如下图 1 所示，一切顺利。所有的单元格都是相同的完美尺寸。这很棒。 但接下来是文本框的实现。一切都乱套了。如第二张图片所示，它完全破坏了我的网格布局。我不希望文本框调整单元格大小，我希望它像所有其他小部件一样去我告诉它去的地方。我为此花了几个小时，但无济于事！
import tkinter as tk
from tkinter import ttk, scrolledtext
root = tk.Tk()
root.state('zoomed')
root.configure(background='#8585ad')
for i in range(0,20):
for x in range(0,20):
root.columnconfigure(i, weight=1)
root.rowconfigure(x, weight=1)
for i in range(0, 20): # 0-19(20 is excluded) so this will loop 10x
for x in range(0, 20):
tk.Label(root, text=f"C-{i}, R-{x}", bg="green", fg="white").grid(column=i, row=x, sticky="NSEW", padx=1, pady=1)
main_frame = tk.Label(root, text="MAIN FRAME", bg="blue", fg="white", anchor="n").grid(column=1, row=1, columnspan=18, rowspan=18, sticky="NSEW")
frame1 = tk.Label(root, text="FRAME 1", bg="red", fg="white", anchor="n").grid(column=2, row=2, columnspan=3, rowspan=16, sticky="NSEW")
frame2 = tk.Label(root, text="FRAME 2", bg="green", fg="white", anchor="n").grid(column=6, row=2, columnspan=6, rowspan=16, sticky="NSEW")
frame3 = tk.Label(root, text=" FRAME 3", bg="red", fg="white", anchor="n").grid(column=13, row=2, columnspan=5, rowspan=16, sticky="NSEW")
for i in range(2, 5): # start at 2 and end after the 3rd loop.
for x in range(3, 18): # to loop 15x and for index to start at 3 so i then put (3,18), 18-3 = 15
tk.Label(root, text=f"Button-{(x-2)}", bg="white", fg="black").grid(column=i, row=x, sticky="EW", padx=5, pady=5)
frame1_header = tk.Label(root, text="User Panel", bg="black", fg="white").grid(column=2, row=2, columnspan=3, sticky="SEW", padx=5, pady=5)
frame2_header = tk.Label(root, text="Editor", bg="black", fg="white").grid(column=6, row=2, columnspan=6, sticky="SEW", padx=5, pady=5)
frame3_header = tk.Label(root, text="Info Panel", bg="black", fg="white").grid(column=13, row=2, columnspan=5, sticky="SEW", padx=5, pady=5)
frame2_text_area = tk.Label(root, text="Text Box", bg="black", fg="white", anchor="center").grid(column=6, row=3, columnspan=4, rowspan=15, sticky="NSEW", padx=5, pady=5)
frame2_list_box = tk.Label(root, text="List Box", bg="grey", fg="white", anchor="center").grid(column=10, row=3, columnspan=2, rowspan=15, sticky="NSEW", padx=5, pady=5)
frame3_tab_panel = ttk.Notebook(root)
frame3_tab_panel.grid(column=13, row=3, columnspan=5, rowspan=15, sticky="NSEW", padx=5, pady=5)
tab1 = ttk.Frame(root)
tab2 = ttk.Frame(root)
tab3 = ttk.Frame(root)
frame3_tab_panel.add(tab1, text ='Generic Editor')
frame3_tab_panel.add(tab2, text ='Text Compare')
frame3_tab_panel.add(tab3, text ='Script Ref')
# width and height does indeed adjust the texbox size but the textbox still isnt properly sticking to the grid that i set.
frame3_tab_panel_tab1 = tk.Text(root, relief="ridge", bd=2, undo=True, wrap="none", background='#1E1E1E', insertbackground='white')#, width=40, height=10)
frame3_tab_panel_tab1.grid(column=13, row=4, columnspan=5, rowspan=14, padx=5, pady=5)
frame3_tab_panel_tab1.config(font=('Consolas bold',10), fg="white")
frame3_tab_panel_tab1.focus()
root.mainloop()
"""
text_area = scrolledtext.ScrolledText(tab1, wrap = tk.WORD, width=40, height=10, font=("Times New Roman", 15))
text_area.grid(column = 0, pady = 10, padx = 10)
text_area.focus()
"""
没有文本框。正如您所见，一切都非常均匀。
仅供参考：这只是我正在处理的一个模板，因此我可以更好地理解 tk 的定位。
文本框没有相应地调整自身并适应我设置的网格，从而破坏了网格。
改变
frame3_tab_panel_tab1.grid(
column=13, row=4, columnspan=5, rowspan=14, padx=5, pady=5
)
至
frame3_tab_panel_tab1.grid(
column=13, row=4, columnspan=5, rowspan=14, padx=5, pady=5,
sticky="NSEW"
)
我设法通过将 Text() 小部件替换为 scrolledtext.ScrolledText() 小部件来解决它。真奇怪。不需要网格，如果我删除高度和宽度，它就会把它弄乱。为什么高度和宽度会有这样的影响？为什么当你有像列和行这样的配置以及粘性时它甚至存在。 Tkinter 有时对其逻辑非常混乱。不过不管怎样，总算是到了。
这是代码，以防有人遇到类似问题。
import tkinter as tk
from tkinter import ttk, scrolledtext
root = tk.Tk()
root.state('zoomed')
root.configure(background='#8585ad')
for i in range(0,20):
for x in range(0,20):
root.columnconfigure(i, weight=1)
root.rowconfigure(x, weight=1)
for i in range(0, 20): # 0-19(20 is excluded) so this will loop 10x
for x in range(0, 20):
tk.Label(root, text=f"C-{i}, R-{x}", bg="green", fg="white").grid(column=i, row=x, sticky="NSEW", padx=1, pady=1)
main_frame = tk.Label(root, text="MAIN FRAME", bg="blue", fg="white", anchor="n").grid(column=1, row=1, columnspan=18, rowspan=18, sticky="NSEW")
frame1 = tk.Label(root, text="FRAME 1", bg="red", fg="white", anchor="n").grid(column=2, row=2, columnspan=3, rowspan=16, sticky="NSEW")
frame2 = tk.Label(root, text="FRAME 2", bg="green", fg="white", anchor="n").grid(column=6, row=2, columnspan=6, rowspan=16, sticky="NSEW")
frame3 = tk.Label(root, text=" FRAME 3", bg="red", fg="white", anchor="n").grid(column=13, row=2, columnspan=5, rowspan=16, sticky="NSEW")
for i in range(2, 5): # start at 2 and end after the 3rd loop.
for x in range(3, 18): # to loop 15x and for index to start at 3 so i then put (3,18), 18-3 = 15
tk.Label(root, text=f"Button-{(x-2)}", bg="white", fg="black").grid(column=i, row=x, sticky="EW", padx=5, pady=5)
frame1_header = tk.Label(root, text="User Panel", bg="black", fg="white").grid(column=2, row=2, columnspan=3, sticky="SEW", padx=5, pady=5)
frame2_header = tk.Label(root, text="Editor", bg="black", fg="white").grid(column=6, row=2, columnspan=6, sticky="SEW", padx=5, pady=5)
frame3_header = tk.Label(root, text="Info Panel", bg="black", fg="white").grid(column=13, row=2, columnspan=5, sticky="SEW", padx=5, pady=5)
frame2_text_area = tk.Label(root, text="Text Box", bg="black", fg="white", anchor="center").grid(column=6, row=3, columnspan=4, rowspan=15, sticky="NSEW", padx=5, pady=5)
frame2_list_box = tk.Label(root, text="List Box", bg="grey", fg="white", anchor="center").grid(column=10, row=3, columnspan=2, rowspan=15, sticky="NSEW", padx=5, pady=5)
frame3_tab_panel = ttk.Notebook(root)
frame3_tab_panel.grid(column=13, row=3, columnspan=5, rowspan=15, sticky="NSEW", padx=5, pady=5)
frame3_tab_panel_tab1 = scrolledtext.ScrolledText(root, bd=2, undo=True, wrap="none", width=40, height=10, font=("Times New Roman", 15), background='#1E1E1E', insertbackground='white')
frame3_tab_panel_tab1.config(font=('Consolas bold',10), fg="white")
frame3_tab_panel_tab1.focus()
tab2 = ttk.Frame(root)
tab3 = ttk.Frame(root)
frame3_tab_panel.add(frame3_tab_panel_tab1, text ='Generic Editor')
frame3_tab_panel.add(tab2, text ='Text Compare')
frame3_tab_panel.add(tab3, text ='Script Ref')
root.mainloop()
你的代码中有很多错误，你真的应该接受 a good tutorial for tkinter and you may wish to have a
最大的问题是什么导致您的代码与您预期的不同，您总是将根定义为主。每个小部件，除了 root window 之外，都有一个 master 并且由每个小部件需要的唯一位置参数设置。 请注意，如果给出 None，则默认设置根 window。这是因为 tkinter 是按层次结构构建的，并且在这个层次结构的顶部是 root window（tk.Tk() 的实例）。
master 应该是一个容器，这意味着根 window、Toplevel 或 Frame。大师可以有所谓的 children，它可以是所有其他小部件加上作为 children 处理的框架。 master 和 frame 之间的关系是多种多样的，但是对于这个问题的范围，我们将只看几何。
每个小部件都有一个几何图形，可以被 universal widget method .winfo_geometry() that will give you a geometry string 'widthxheight±x_offset±y_offset'（例如 '120x50-0+20'）接收。几何字符串是每个计算的基础，以订购您的小部件，您可以通过选择几何管理器和不同的可选关键字来影响它。使用这些信息将创建一个输出并显示在您的屏幕上。
建议：
import tkinter as tk
from tkinter import ttk, scrolledtext
def populate_frame_1():
frame_1_label = tk.Label(frame_1,text='User Panel',
background = 'black',
foreground = 'white')
frame_1_label.grid(column=0,row=0,sticky='ew',columnspan=3)
frame_1.columnconfigure(0,weight=1)
frame_1.columnconfigure(1,weight=1)
frame_1.columnconfigure(2,weight=1)
for i in range(0, 3):
for x in range(1, 16):
l = tk.Button(frame_1, text=f"Button-{(x-2)}",
bg="white", fg="black")
l.grid(column=i, row=x, sticky="EW", padx=5, pady=5)
def populate_frame_2():
frame_2_label = tk.Label(frame_2,text='Editor',
background = 'black',
foreground = 'white')
textbox = tk.Text(frame_2,width=35)
listbox = tk.Listbox(frame_2,bg='yellow')
frame_2_label.grid(column=0,row=0,sticky='ew',columnspan=6)
textbox.grid(column=0,row=1,sticky='ns',columnspan=4)
listbox.grid(column=4,row=1,sticky='ns',columnspan=2)
frame_2.rowconfigure(1,weight=2)
def populate_frame_3():
frame_3_label = tk.Label(frame_3,text='Info Panel',
background = 'black',
foreground = 'white')
frame_3_label.grid(column=0,row=0,sticky='ew',columnspan=5)
control_panel = ttk.Notebook(frame_3)
tab1 = ttk.Frame(control_panel)
tab2 = ttk.Frame(control_panel)
tab3 = ttk.Frame(control_panel)
control_panel.add(tab1, text ='Generic Editor')
control_panel.add(tab2, text ='Text Compare')
control_panel.add(tab3, text ='Script Ref')
control_panel.grid(column=0,row=1,sticky='nswe')
frame3_tab_panel_tab1 = tk.Text(tab1, relief="ridge", bd=2, undo=True,
wrap="none", background='#1E1E1E',
insertbackground='white',width=40, height=10)
frame3_tab_panel_tab1.pack(fill=tk.BOTH,expand=True)
frame3_tab_panel_tab1.config(font=('Consolas bold',10), fg="white")
frame3_tab_panel_tab1.focus()
frame_3.rowconfigure(1,weight=2)
frame_3.columnconfigure(0,weight=2)
XOFFSET = 75
YOFFSET = 50
root = tk.Tk()
root.state('zoomed')
root.configure(background='#8585ad')
main_frame = tk.Frame(root,background='blue')
frame_1 = tk.Frame(main_frame,background='red')
frame_2 = tk.Frame(main_frame,background='green')
frame_3 = tk.Frame(main_frame,background='red')
main_frame.pack(fill=tk.BOTH,expand=True,
padx=XOFFSET,pady=YOFFSET)
frame_1.pack(side=tk.LEFT,fill=tk.BOTH,padx=XOFFSET,pady=YOFFSET,expand=True)
frame_2.pack(side=tk.LEFT,fill=tk.Y,pady=YOFFSET,expand=True)
frame_3.pack(side=tk.LEFT,fill=tk.BOTH,padx=XOFFSET,pady=YOFFSET,expand=True)
populate_frame_1()
populate_frame_2()
populate_frame_3()
root.mainloop()