golden hour

/opt/alt/python37/lib64/python3.7/idlelib

File/Folder	Size	Actions
CREDITS.txt	1.82 KB
ChangeLog	55.04 KB
HISTORY.txt	10.07 KB
Icons	-
NEWS.txt	47.65 KB
NEWS2x.txt	26.54 KB
README.txt	9.37 KB
TODO.txt	8.28 KB
__init__.py	396 B
__main__.py	159 B
__pycache__	-
autocomplete.py	8.74 KB
autocomplete_w.py	19.64 KB
autoexpand.py	3.14 KB
browser.py	8.12 KB
calltip.py	6.17 KB
calltip_w.py	6.99 KB
codecontext.py	11.06 KB
colorizer.py	12.69 KB
config-extensions.def	2.21 KB
config-highlight.def	2.8 KB
config-keys.def	10.65 KB
config-main.def	3.09 KB
config.py	37.28 KB
config_key.py	14.13 KB
configdialog.py	102.07 KB
debugger.py	18.66 KB
debugger_r.py	11.86 KB
debugobj.py	3.96 KB
debugobj_r.py	1.06 KB
delegator.py	1.02 KB
dynoption.py	1.97 KB
editor.py	64.08 KB
extend.txt	3.56 KB
filelist.py	3.8 KB
format.py	15.41 KB
grep.py	7.3 KB
help.html	60.76 KB
help.py	11.46 KB
help_about.py	8.77 KB
history.py	3.95 KB
hyperparser.py	12.58 KB
idle.py	454 B
idle.pyw	570 B
idle_test	-
iomenu.py	20.15 KB
macosx.py	9.44 KB
mainmenu.py	3.83 KB
multicall.py	18.21 KB
outwin.py	5.65 KB
parenmatch.py	7.04 KB
pathbrowser.py	3.12 KB
percolator.py	3.06 KB
pyparse.py	19.48 KB
pyshell.py	55.91 KB
query.py	14.55 KB
redirector.py	6.71 KB
replace.py	9.66 KB
rpc.py	20.64 KB
run.py	19.82 KB
runscript.py	8.58 KB
scrolledlist.py	4.36 KB
search.py	5.44 KB
searchbase.py	7.36 KB
searchengine.py	7.3 KB
sidebar.py	13.27 KB
squeezer.py	12.54 KB
stackviewer.py	4.35 KB
statusbar.py	1.41 KB
textview.py	6.65 KB
tooltip.py	6.41 KB
tree.py	15.97 KB
undo.py	10.79 KB
window.py	2.55 KB
zoomheight.py	4.1 KB
zzdummy.py	961 B

Edit: stackviewer.py

import linecache
import os
import sys

import tkinter as tk

from idlelib.debugobj import ObjectTreeItem, make_objecttreeitem
from idlelib.tree import TreeNode, TreeItem, ScrolledCanvas

def StackBrowser(root, flist=None, tb=None, top=None):
    global sc, item, node  # For testing.
    if top is None:
        top = tk.Toplevel(root)
    sc = ScrolledCanvas(top, bg="white", highlightthickness=0)
    sc.frame.pack(expand=1, fill="both")
    item = StackTreeItem(flist, tb)
    node = TreeNode(sc.canvas, None, item)
    node.expand()

class StackTreeItem(TreeItem):

def __init__(self, flist=None, tb=None):
        self.flist = flist
        self.stack = self.get_stack(tb)
        self.text = self.get_exception()

def get_stack(self, tb):
        if tb is None:
            tb = sys.last_traceback
        stack = []
        if tb and tb.tb_frame is None:
            tb = tb.tb_next
        while tb is not None:
            stack.append((tb.tb_frame, tb.tb_lineno))
            tb = tb.tb_next
        return stack

def get_exception(self):
        type = sys.last_type
        value = sys.last_value
        if hasattr(type, "__name__"):
            type = type.__name__
        s = str(type)
        if value is not None:
            s = s + ": " + str(value)
        return s

def GetText(self):
        return self.text

def GetSubList(self):
        sublist = []
        for info in self.stack:
            item = FrameTreeItem(info, self.flist)
            sublist.append(item)
        return sublist

class FrameTreeItem(TreeItem):

def __init__(self, info, flist):
        self.info = info
        self.flist = flist

def GetText(self):
        frame, lineno = self.info
        try:
            modname = frame.f_globals["__name__"]
        except:
            modname = "?"
        code = frame.f_code
        filename = code.co_filename
        funcname = code.co_name
        sourceline = linecache.getline(filename, lineno)
        sourceline = sourceline.strip()
        if funcname in ("?", "", None):
            item = "%s, line %d: %s" % (modname, lineno, sourceline)
        else:
            item = "%s.%s(...), line %d: %s" % (modname, funcname,
                                             lineno, sourceline)
        return item

def GetSubList(self):
        frame, lineno = self.info
        sublist = []
        if frame.f_globals is not frame.f_locals:
            item = VariablesTreeItem("<locals>", frame.f_locals, self.flist)
            sublist.append(item)
        item = VariablesTreeItem("<globals>", frame.f_globals, self.flist)
        sublist.append(item)
        return sublist

def OnDoubleClick(self):
        if self.flist:
            frame, lineno = self.info
            filename = frame.f_code.co_filename
            if os.path.isfile(filename):
                self.flist.gotofileline(filename, lineno)

class VariablesTreeItem(ObjectTreeItem):

def GetText(self):
        return self.labeltext

def GetLabelText(self):
        return None

def IsExpandable(self):
        return len(self.object) > 0

def GetSubList(self):
        sublist = []
        for key in self.object.keys():
            try:
                value = self.object[key]
            except KeyError:
                continue
            def setfunction(value, key=key, object=self.object):
                object[key] = value
            item = make_objecttreeitem(key + " =", value, setfunction)
            sublist.append(item)
        return sublist

def _stack_viewer(parent):  # htest #
    from idlelib.pyshell import PyShellFileList
    top = tk.Toplevel(parent)
    top.title("Test StackViewer")
    x, y = map(int, parent.geometry().split('+')[1:])
    top.geometry("+%d+%d" % (x + 50, y + 175))
    flist = PyShellFileList(top)
    try: # to obtain a traceback object
        intentional_name_error
    except NameError:
        exc_type, exc_value, exc_tb = sys.exc_info()
    # inject stack trace to sys
    sys.last_type = exc_type
    sys.last_value = exc_value
    sys.last_traceback = exc_tb

StackBrowser(top, flist=flist, top=top, tb=exc_tb)

# restore sys to original state
    del sys.last_type
    del sys.last_value
    del sys.last_traceback

if __name__ == '__main__':
    from unittest import main
    main('idlelib.idle_test.test_stackviewer', verbosity=2, exit=False)

from idlelib.idle_test.htest import run
    run(_stack_viewer)