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Edit File : stackviewer.py \| Size : 4.35 KB
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) Back

Edit File : stackviewer.py | Size : 4.35 KB

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)

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