Edit File: StackViewer.py
import os import sys import linecache import re import Tkinter as tk from idlelib.TreeWidget import TreeNode, TreeItem, ScrolledCanvas from idlelib.ObjectBrowser import ObjectTreeItem, make_objecttreeitem from idlelib.PyShell import PyShellFileList def StackBrowser(root, flist=None, tb=None, top=None): 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 keys(self): # unused, left for possible 3rd party use return self.object.keys() def _stack_viewer(parent): # htest # root = tk.Tk() root.title("Test StackViewer") width, height, x, y = list(map(int, re.split('[x+]', parent.geometry()))) root.geometry("+%d+%d"%(x, y + 150)) flist = PyShellFileList(root) 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(root, flist=flist, top=root, tb=exc_tb) # restore sys to original state del sys.last_type del sys.last_value del sys.last_traceback if __name__ == '__main__': from idlelib.idle_test.htest import run run(_stack_viewer)
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