Cannot Use Geometry Manager Pack Inside

Cannot use geometry manager pack inside

Per the docs, don't mix pack and grid in the same master window:

Warning: Never mix grid and pack in the same master window. Tkinter
will happily spend the rest of your lifetime trying to negotiate a
solution that both managers are happy with. Instead of waiting, kill
the application, and take another look at your code. A common mistake
is to use the wrong parent for some of the widgets.

Thus, if you call grid on the textbox, do not call pack on the scrollbar.

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import Tkinter as tk
import ttk

class App(object):
    def __init__(self, master, **kwargs):
        self.master = master
        self.create_text()

    def create_text(self):
        self.textbox = tk.Text(self.master, height = 10, width = 79, wrap = 'word')
        vertscroll = ttk.Scrollbar(self.master)
        vertscroll.config(command=self.textbox.yview)
        self.textbox.config(yscrollcommand=vertscroll.set)
        self.textbox.grid(column=0, row=0)
        vertscroll.grid(column=1, row=0, sticky='NS')

root = tk.Tk()
app = App(root)
root.mainloop()

cannot use geometry manager pack inside . which already has slaves managed by grid, although master windows are different

As @Bryan Oakley pointed out in the comment, using grid() returns None. So to fix it I had to separate instructions:

    frame1 = LabelFrame(root, text="Frame1")
    frame2 = LabelFrame(root, text="Frame2")

    frame1.grid(row=0, column=0)
    frame2.grid(row=0, column=1)

Python, cannot use geometry manager pack inside

This error can occur if you mix pack() and grid() in the same master window. According the docs, it is a bad idea:

Warning: Never mix grid and pack in the same master window. Tkinter
will happily spend the rest of your lifetime trying to negotiate a
solution that both managers are happy with. Instead of waiting, kill
the application, and take another look at your code. A common mistake
is to use the wrong parent for some of the widgets.

For example, this code is working for Python 3.3.x, but isn't working on Python 3.4.x (throws the error you mentioned):

from tkinter import *
from tkinter import ttk

root = Tk()

mainframe = ttk.Frame(root)
mainframe.grid(column=0, row=0, sticky=(N, W, E, S))

nb = ttk.Notebook(root)
nb.pack()

root.mainloop()

And this code isn't working for both Python versions:

from tkinter import *
root = Tk()

Label(root, text="First").grid(row=0)
Label(root, text="Second").pack()

root.mainloop()

To avoid this, use only one geometry manager for all children of a given parent, such as grid().

Error cannot use geometry manager pack inside . which already has slaves managed by grid

In your flagOpener() function:

def flagOpener():
        global flagIMG
        global flagLabel
        flagPath = filedialog.askopenfilename(initialdir="/", title="Select an Image File", filetypes=(("Png Files", "*.png"), ("Jpeg Files", "*.jpg; *.jpeg"), ("All Files", "*.*")))
        flagIMG = ImageTk.PhotoImage(Image.open(flagPath))
        flagLabel = Label(image=flagIMG)
        flagLabel.pack()
        return flagIMG, flagLabel

You didn't specify a parent for the flagLabel. Tkinter used the default option for master which is root but you used the grid manager for root here:

def frameMaker():
    frameName = Frame(root)
    frameName.grid(row=0,column=0,sticky='nsew')
    return frameName

and here:

titleframe = frameMaker()
politicalframe = frameMaker()
econframe = frameMaker()
miscframe = frameMaker()

for frame in (titleframe, politicalframe, econframe, miscframe):
    frame.grid(row=0,column=0,sticky='nsew')

Tkinter doesn't allow you to use different managers for the same frame/window. Also why do you call the .grid method twice for: (titleframe, politicalframe, econframe, miscframe)? Once in the frameMaker function then again the the for loop. You shouldn't do that.

Tkintter error: cannot use geometry manager grid inside . which already has slaves managed by pack

You cannot mix pack() and grid()
from the docs:

Warning: Never mix grid and pack in the same master window. Tkinter will happily spend the rest of your lifetime trying to negotiate a solution that both managers are happy with. Instead of waiting, kill the application, and take another look at your code. A common mistake is to use the wrong parent for some of the widgets.

you are calling canvas.pack() but to the same tk object you add a button on which you call the grid() function.

Cannot use geometry manager grid inside - Need to use .grid() and not .pack()

As mentioned in the comments, you have to place every widget inside the frame, so you have to pass in self as the parent of EVERY widget. You did not pass in self for the Label and hence the error.

def MyDir(self):
    self.work_dir = askdirectory(title = 'Select Working Directory Folder')
    myLabel = Label(self,text = self.work_dir) # Use self
    myLabel.grid(row = 0, column = 1)

Or the other solution is to remove self.pack() and use self.grid(row=0,column=0) instead.

Not using grid anywhere still gives error 'cannot use geometry manager pack inside .frame2 which already has slaves managed by grid' in tkinter

Since you use pandas dataframe, Table() should be pandastable.Table class which uses grid() to layout its components inside its parent (in your case, it is analysisframe). That is why you get the error because you use pack() on other widgets in the same frame.

Use another frame for the pandastable.Table and use pack() on that frame:

def show_analysis():
    # create a frame for the pandastable.Table
    tableframe = Frame(analysisframe)
    tableframe.pack()
    # use tableframe as the parent
    pt = Table(tableframe, dataframe=analysis, width=1200, height=100,
          editable=False, showtoolbar=True, showstatusbar=True)
    pt.show()

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