cpython/Lib/idlelib/stackviewer.py at 3.13 · python/cpython · GitHub

Name: cpython/Lib/idlelib/stackviewer.py at 3.13 · python/cpython · GitHub
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# Rename to stackbrowser or possibly consolidate with browser.

importlinecache
importos

importtkinterastk

fromidlelib.debugobjimportObjectTreeItem, make_objecttreeitem
fromidlelib.treeimportTreeNode, TreeItem, ScrolledCanvas

defStackBrowser(root, exc, flist=None, top=None):
globalsc, item, node# For testing.
iftopisNone:
top=tk.Toplevel(root)
sc=ScrolledCanvas(top, bg="white", highlightthickness=0)
sc.frame.pack(expand=1, fill="both")
item=StackTreeItem(exc, flist)
node=TreeNode(sc.canvas, None, item)
node.expand()


classStackTreeItem(TreeItem):

def__init__(self, exc, flist=None):
self.flist=flist
self.stack=self.get_stack(NoneifexcisNoneelseexc.__traceback__)
self.text=f"{type(exc).__name__}: {str(exc)}"

defget_stack(self, tb):
stack= []
iftbandtb.tb_frameisNone:
tb=tb.tb_next
whiletbisnotNone:
stack.append((tb.tb_frame, tb.tb_lineno))
tb=tb.tb_next
returnstack

defGetText(self): # Titlecase names are overrides.
returnself.text

defGetSubList(self):
sublist= []
forinfoinself.stack:
item=FrameTreeItem(info, self.flist)
sublist.append(item)
returnsublist


classFrameTreeItem(TreeItem):

def__init__(self, info, flist):
self.info=info
self.flist=flist

defGetText(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()
iffuncnamein ("?", "", None):
item="%s, line %d: %s"% (modname, lineno, sourceline)
else:
item="%s.%s(...), line %d: %s"% (modname, funcname,
lineno, sourceline)
returnitem

defGetSubList(self):
frame, lineno=self.info
sublist= []
ifframe.f_globalsisnotframe.f_locals:
item=VariablesTreeItem("<locals>", frame.f_locals, self.flist)
sublist.append(item)
item=VariablesTreeItem("<globals>", frame.f_globals, self.flist)
sublist.append(item)
returnsublist

defOnDoubleClick(self):
ifself.flist:
frame, lineno=self.info
filename=frame.f_code.co_filename
ifos.path.isfile(filename):
self.flist.gotofileline(filename, lineno)


classVariablesTreeItem(ObjectTreeItem):

defGetText(self):
returnself.labeltext

defGetLabelText(self):
returnNone

defIsExpandable(self):
returnlen(self.object) >0

defGetSubList(self):
sublist= []
forkeyinself.object.keys(): # self.object not necessarily dict.
try:
value=self.object[key]
exceptKeyError:
continue
defsetfunction(value, key=key, object_=self.object):
object_[key] =value
item=make_objecttreeitem(key+" =", value, setfunction)
sublist.append(item)
returnsublist


def_stackbrowser(parent): # htest #
fromidlelib.pyshellimportPyShellFileList
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
exceptNameErrorase:
StackBrowser(top, e, flist=flist, top=top)


if__name__=='__main__':
fromunittestimportmain
main('idlelib.idle_test.test_stackviewer', verbosity=2, exit=False)

fromidlelib.idle_test.htestimportrun
run(_stackbrowser)