Python 3 tkinter treeview，無法將數據從最后一列轉移到第一列

Question

試圖弄清楚如何在 tkinter 的 treeview 中顯示數據庫中的一些數據，但在最后一點上碰壁了。 我在將數據從最后一列移動到第一列時遇到了一些麻煩。 代碼注釋中的進一步描述。 希望這里的任何人都可以為我指明正確的方向。

'''
from tkinter import ttk, Button, Entry, Label, Tk, Scrollbar, Frame

root = Tk()
root.geometry("800x600")

my_frame = Frame(root)
my_frame.pack()

# some value's so interperter doesn't freak out
a = 10
b = 30
c = 50

#  list representing stuff from database query return
list_data = [(a, b, c, 1), (a, b, c, 2), (a, b, c, 3), (a, b, c, 4), 
(a, b, c, 5), (a, b, c, 6), (a, b, c, 7), (a, b, c, 8), (a, b, c, 9), 
(a, b, c, 10), (a, b, c, 11), (a, b, c, 12), (a, c, b, 13), 
(a, b, c, 14),]

#  list to hold column titles
cols = ["col1", "col2", "col3", "col4"]


tree = ttk.Treeview(my_frame, selectmode="browse")
tree.pack(side="left")
tree["columns"] = cols
tree["show"] = "headings"

for col in range(len(cols)):
    tree.column(col, width=100, anchor="c")
    tree.heading(col, text=cols[col])

#----------------------------------------------------------------------
#  want to shift column 4's data representing rowid to column 1 
#  expected it just to be values=list_data[data-1] but that only shifts 
#  the data vertical inside column 4
#----------------------------------------------------------------------
for data in range(len(list_data)):
    tree.insert("", "end", text=list_data[data], values=list_data[data])


side_scroller = Scrollbar(my_frame, orient="vertical", command=tree.yview)
side_scroller.pack(side="right", fill="y")

tree.configure(yscrollcommand=side_scroller.set)

root.mainloop()
'''

Answer 1

一段時間以來一直在努力發現一些有用的東西，不是很漂亮，但如果你知道更好的方法，它確實可以隨意發布改進。 也許它會為某人節省一些挫敗感作為起點。

'''
from tkinter import ttk, Button, Entry, Label, Tk, Scrollbar, Frame

root = Tk()
root.geometry("500x300")

my_frame = Frame(root)
my_frame.pack()

# some value's so interperter doesn't freak out
a = 10
b = 30
c = 50

#  list representing stuff from database query return
list_data = [(a, b, c, 1), (a, b, c, 2), (a, b, c, 3), (a, b, c, 4),
 (a, b, c, 5), (a, b, c, 6), (a, b, c, 7), (a, b, c, 8), (a, b, c, 9),
  (a, b, c, 10), (a, b, c, 11), (a, b, c, 12), (a, c, b, 13),
   (a, b, c, 14),]

#  list to hold column titles
#  changed col1 to row id  and up to 3 for columns to make it more clear
cols = ["row id", "col1", "col2", "col3"]


tree = ttk.Treeview(my_frame, selectmode="browse")
tree.pack(side="left")
tree["columns"] = cols
tree["show"] = "headings"

for col in range(len(cols)):
    tree.column(col, width=100, anchor="c")
    tree.heading(col, text=cols[col])

#  spaghetti code but it does work as intended
#  think the problems came from the list being tuples
#  even after converting to list of lists couldn't shift normally
#  
#  created some lists as placeholders
list1 = []
list_of_lists = []
#  converted list off tuples to list of lists
list_of_lists = [list(elem) for elem in list_data]
#  looping thru the list to change the order to get last entry first
#  did try to do it in a shifting function but couldn't get it to work
for part in list_of_lists:
    list1.append(part[-1])
    list1.append(part[0])
    list1.append(part[1])
    list1.append(part[2])

#  chopped it into pieces still hardcoded length of 4 in for readability of example
chunk = [list1[x:x+4] for x in range(0, len(list1), 4)]

#  back to the original lines but calling chunk instead of list_data
for data in range(len(chunk)):

    tree.insert("", "end", text=chunk[data], values=chunk[data])


side_scroller = Scrollbar(my_frame, orient="vertical", command=tree.yview)
side_scroller.pack(side="right", fill="y")

tree.configure(yscrollcommand=side_scroller.set)

root.mainloop()
,,,