Insertion of data into a treeview widget on a notebook Tab - python-3.x

Question

I have included two modules:
A treeview Module
A notebook Module
The treeview module seems to function as required and gets its data from sample data at the top of the Module
The notebook module creates a notebook with 12 tabs - one for each month of the year. each tab will have a treeview widget on it showing the data for that month.
Question # 1:
How do I enter the treeview widget and its data from the treeview module on each tab of the notebook? No Mater what I try I end up with a blank treeview widget as demonstrated in the current module
Question # 2:
Column #3 of the treeview module has both negative and positive numbers in it. How do I make the positive numbers "green" and the Negative numbers "red" while keeping the rest of the widget in its default "black".?
(every time I try to use 'tag' and 'tag-configure' it changes all the characters on the widget.)
'''the following is a tree module
in order to run this module remove "#" from the last line'''
from tkinter import *
import tkinter.ttk as ttk
CategoryList = ['Income','Taxes','Housing']
AccountsList = [['Income','Bobs'],['Income','Roses'],['Income','Als'],
['Taxes','Federal'],['Taxes','State'],['Taxes','Local'],
['Housing','Payment'],['Housing','Utilities'], ['Housing','Repairs']]
CatDiffList = [[5000,4500,500],[100,120,-20],[800,700,100]]
AcctDiffList = [[2000,2000,0],[2000,2000,0],[1000,500,500],
[70,50,20],[50,50,0],[0,40,-40],
[500,400,0],[200,100,100],[100,0,100]]
month = 3 #numbers 1 to 12 = the twelve months
def CreateTreeview():
root = Tk()
#Set up the tree
tree = ttk.Treeview(root,height = 20 )
tree["columns"]=("one","two","three")
tree.column("one", width=100,anchor = 'e' )
tree.column("two", width=100,anchor = 'e')
tree.column("three", width=100,anchor = 'e')
tree.heading('#0',text = "Account Names")
tree.heading("one", text="Budget")
tree.heading("two", text="Actual")
tree.heading("three", text="Difference")
#Bring in Data from TransactionTotals Module & insert it in the tree
for r in range(0,len(CategoryList)):
Name = CategoryList[r]
CatBud = CatDiffList[r][0]
CatAct = CatDiffList[r][1]
CatDif = CatDiffList[r][2]
if CatDif >= 0:
fg = "green" #Change color of column 3
else:
fg = "red"
tree.tag_configure("col3", foreground = fg)
tree.insert("" , r,Name, text=Name, values=(CatBud,CatAct,CatDif),
tag =("col3"))
AcctBud = AcctDiffList[r][0]
AcctAct = AcctDiffList[r][1]
AcctDif = AcctDiffList[r][2]
if AccttDif >= 0:
fg = "green" #Change color of column 3
else:
fg = "red"
tree.tag_configure("col3", foreground = fg)
for y in range(1,len(AccountsList)):
if AccountsList[y][0] == Name:
tree.insert(Name,2,text = AccountsList[y][1],
values = (AcctBud,AcctAct,AcctDif),
tag =("col3"))
tree.pack()
root.mainloop()
#CreateTreeview() #uncomment this line in order to test Tview.py
*******************************************************************************
'''This is the Notebook Module'''
import tkinter.ttk as ttk
import Tview as T2
from tkinter import *
class Notebook(Frame):
def __init__(self, parent, activerelief = RAISED, inactiverelief = RIDGE, xpad = 4, ypad = 6, activefg = 'black', inactivefg = 'black', **kw):
"""Construct a Notebook Widget
Notebook(self, parent, activerelief = RAISED, inactiverelief = RIDGE, xpad = 4, ypad = 6, activefg = 'black', inactivefg = 'black', **kw)
Valid resource names: background, bd, bg, borderwidth, class,
colormap, container, cursor, height, highlightbackground,
highlightcolor, highlightthickness, relief, takefocus, visual, width, activerelief,
inactiverelief, xpad, ypad.
xpad and ypad are values to be used as ipady and ipadx
with the Label widgets that make up the tabs. activefg and inactivefg define what
color the text on the tabs when they are selected, and when they are not"""
#Make various argument available to the rest of the class
self.activefg = activefg
self.inactivefg = inactivefg
self.deletedTabs = []
self.xpad = xpad
self.ypad = ypad
self.activerelief = activerelief
self.inactiverelief = inactiverelief
self.kwargs = kw
self.tabVars = {} #This dictionary holds the label and frame instances of each tab
self.tabs = 0 #Keep track of the number of tabs
self.noteBookFrame = Frame(parent) #Create a frame to hold everything together
self.BFrame = Frame(self.noteBookFrame) #Create a frame to put the "tabs" in
self.noteBook = Frame(self.noteBookFrame, relief = RAISED, bd = 4, **kw) #Create the frame that will parent the frames for each tab
self.noteBook.grid_propagate(0) #self.noteBook has a bad habit of resizing itself, this line prevents that
Frame.__init__(self)
self.noteBookFrame.grid()
self.BFrame.grid(row =0, sticky = W)
self.noteBook.grid(row = 1, column = 0, columnspan = 27)
def change_tab(self, IDNum):
"""Internal Function"""
for i in (a for a in range(0, len(self.tabVars.keys()))):
if not i in self.deletedTabs: #Make sure tab hasen't been deleted
if i != IDNum: #Check to see if the tab is the one that is currently selected
self.tabVars[i][1].grid_remove() #Remove the Frame corresponding to each tab that is not selected
self.tabVars[i][0]['relief'] = self.inactiverelief #Change the relief of all tabs that are not selected to "Groove"
self.tabVars[i][0]['fg'] = self.inactivefg #Set the fg of the tab, showing it is selected, default is black
else: #When on the tab that is currently selected...
self.tabVars[i][1].grid() #Re-grid the frame that corresponds to the tab
self.tabVars[IDNum][0]['relief'] = self.activerelief #Change the relief to "Raised" to show the tab is selected
self.tabVars[i][0]['fg'] = self.activefg #Set the fg of the tab, showing it is not selected, default is black
def add_tab(self, width = 2, **kw):
"""Creates a new tab, and returns it's corresponding frame"""
temp = self.tabs #Temp is used so that the value of self.tabs will not throw off the argument sent by the label's event binding
self.tabVars[self.tabs] = [Label(self.BFrame, relief = RIDGE, **kw)] #Create the tab
self.tabVars[self.tabs][0].bind("<Button-1>", lambda Event:self.change_tab(temp)) #Makes the tab "clickable"
self.tabVars[self.tabs][0].pack(side = LEFT, ipady = self.ypad, ipadx = self.xpad) #Packs the tab as far to the left as possible
self.tabVars[self.tabs].append(Frame(self.noteBook, **self.kwargs)) #Create Frame, and append it to the dictionary of tabs
self.tabVars[self.tabs][1].grid(row = 0, column = 0) #Grid the frame ontop of any other already existing frames
self.change_tab(0) #Set focus to the first tab
self.tabs += 1 #Update the tab count
return self.tabVars[temp][1] #Return a frame to be used as a parent to other widgets
def destroy_tab(self, tab):
"""Delete a tab from the notebook, as well as it's corresponding frame"""
self.iteratedTabs = 0 #Keep track of the number of loops made
for b in self.tabVars.values(): #Iterate through the dictionary of tabs
if b[1] == tab: #Find the NumID of the given tab
b[0].destroy() #Destroy the tab's frame, along with all child widgets
self.tabs -= 1 #Subtract one from the tab count
self.deletedTabs.append(self.iteratedTabs) #Apend the NumID of the given tab to the list of deleted tabs
break #Job is done, exit the loop
self.iteratedTabs += 1 #Add one to the loop count
def focus_on(self, tab):
"""Locate the IDNum of the given tab and use
change_tab to give it focus"""
self.iteratedTabs = 0 #Keep track of the number of loops made
for b in self.tabVars.values(): #Iterate through the dictionary of tabs
if b[1] == tab: #Find the NumID of the given tab
self.change_tab(self.iteratedTabs) #send the tab's NumID to change_tab to set focus, mimicking that of each tab's event bindings
break #Job is done, exit the loop
self.iteratedTabs += 1 #Add one to the loop count
def NotebookView():
root = Tk()
root.title("Yearly Budget Comparison by Month")
note = Notebook(root, width= 400, height =600, activefg = 'red', inactivefg = 'blue') #Create a Note book Instance
note.grid()
tab1 = note.add_tab(text = " January")
tab2 = note.add_tab(text = " February")
tab3 = note.add_tab(text = "March ") #Create a tab with the text "March"
tab4 = note.add_tab(text = " April")
tab5 = note.add_tab(text = "May ")
tab6 = note.add_tab(text = " June")
tab7 = note.add_tab(text = " July")
tab8 = note.add_tab(text = "August ")
tab9 = note.add_tab(text = " September")
tab10 = note.add_tab(text = " October")
tab11 = note.add_tab(text = "November ")
tab12 = note.add_tab(text = " December")
Label(tab1, text = 'January Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 1,pady = 25,padx = 25)
Label(tab2, text = 'Febuary Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 7,pady = 25)
Label(tab3, text = 'March Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 7,pady = 25)
Label(tab4, text = 'April Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 7,pady = 25)
Label(tab5, text = 'May Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 7,pady = 25)
Label(tab6, text = 'June Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 7,pady = 25)
Label(tab7, text = 'July Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 7,pady = 25)
Label(tab8, text = 'August Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 7,pady = 25)
Label(tab9, text = 'September Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 7,pady = 25)
Label(tab10, text = 'October Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 7,pady = 25)
Label(tab11, text = 'November Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 7,pady = 25)
Label(tab12, text = 'December Monthly Budget Comparison:',font =("Comic Sans MS", 14, "italic"),fg = 'RED',justify = CENTER).grid(row = 0, column = 7,pady = 25)
T2.CreateTreeview=ttk.Treeview(tab1,height = 20).grid(row = 4, column = 1, columnspan = 6)
note.focus_on(tab1)
root.mainloop()
if __name__ == "__main__":
NotebookView()

Answer 1

Without going through all of the code, there is one very clear problem: you are creating two instances of Tk, and calling mainloop twice. Within a single GUI you should only ever create exactly once instance, and call mainloop exactly once.