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156 lines
4.3 KiB
156 lines
4.3 KiB
import linecache
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import os
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import sys
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import tkinter as tk
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from idlelib.debugobj import ObjectTreeItem, make_objecttreeitem
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from idlelib.tree import TreeNode, TreeItem, ScrolledCanvas
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def StackBrowser(root, flist=None, tb=None, top=None):
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global sc, item, node # For testing.
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if top is None:
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top = tk.Toplevel(root)
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sc = ScrolledCanvas(top, bg="white", highlightthickness=0)
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sc.frame.pack(expand=1, fill="both")
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item = StackTreeItem(flist, tb)
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node = TreeNode(sc.canvas, None, item)
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node.expand()
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class StackTreeItem(TreeItem):
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def __init__(self, flist=None, tb=None):
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self.flist = flist
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self.stack = self.get_stack(tb)
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self.text = self.get_exception()
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def get_stack(self, tb):
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if tb is None:
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tb = sys.last_traceback
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stack = []
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if tb and tb.tb_frame is None:
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tb = tb.tb_next
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while tb is not None:
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stack.append((tb.tb_frame, tb.tb_lineno))
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tb = tb.tb_next
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return stack
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def get_exception(self):
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type = sys.last_type
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value = sys.last_value
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if hasattr(type, "__name__"):
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type = type.__name__
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s = str(type)
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if value is not None:
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s = s + ": " + str(value)
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return s
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def GetText(self):
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return self.text
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def GetSubList(self):
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sublist = []
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for info in self.stack:
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item = FrameTreeItem(info, self.flist)
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sublist.append(item)
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return sublist
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class FrameTreeItem(TreeItem):
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def __init__(self, info, flist):
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self.info = info
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self.flist = flist
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def GetText(self):
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frame, lineno = self.info
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try:
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modname = frame.f_globals["__name__"]
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except:
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modname = "?"
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code = frame.f_code
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filename = code.co_filename
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funcname = code.co_name
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sourceline = linecache.getline(filename, lineno)
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sourceline = sourceline.strip()
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if funcname in ("?", "", None):
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item = "%s, line %d: %s" % (modname, lineno, sourceline)
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else:
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item = "%s.%s(...), line %d: %s" % (modname, funcname,
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lineno, sourceline)
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return item
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def GetSubList(self):
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frame, lineno = self.info
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sublist = []
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if frame.f_globals is not frame.f_locals:
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item = VariablesTreeItem("<locals>", frame.f_locals, self.flist)
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sublist.append(item)
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item = VariablesTreeItem("<globals>", frame.f_globals, self.flist)
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sublist.append(item)
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return sublist
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def OnDoubleClick(self):
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if self.flist:
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frame, lineno = self.info
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filename = frame.f_code.co_filename
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if os.path.isfile(filename):
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self.flist.gotofileline(filename, lineno)
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class VariablesTreeItem(ObjectTreeItem):
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def GetText(self):
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return self.labeltext
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def GetLabelText(self):
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return None
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def IsExpandable(self):
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return len(self.object) > 0
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def GetSubList(self):
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sublist = []
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for key in self.object.keys():
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try:
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value = self.object[key]
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except KeyError:
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continue
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def setfunction(value, key=key, object=self.object):
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object[key] = value
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item = make_objecttreeitem(key + " =", value, setfunction)
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sublist.append(item)
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return sublist
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def _stack_viewer(parent): # htest #
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from idlelib.pyshell import PyShellFileList
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top = tk.Toplevel(parent)
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top.title("Test StackViewer")
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x, y = map(int, parent.geometry().split('+')[1:])
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top.geometry("+%d+%d" % (x + 50, y + 175))
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flist = PyShellFileList(top)
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try: # to obtain a traceback object
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intentional_name_error
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except NameError:
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exc_type, exc_value, exc_tb = sys.exc_info()
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# inject stack trace to sys
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sys.last_type = exc_type
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sys.last_value = exc_value
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sys.last_traceback = exc_tb
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StackBrowser(top, flist=flist, top=top, tb=exc_tb)
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# restore sys to original state
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del sys.last_type
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del sys.last_value
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del sys.last_traceback
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if __name__ == '__main__':
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from unittest import main
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main('idlelib.idle_test.test_stackviewer', verbosity=2, exit=False)
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from idlelib.idle_test.htest import run
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run(_stack_viewer)
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