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authorSerhiy Storchaka <storchaka@gmail.com>2020-12-19 10:17:08 (GMT)
committerGitHub <noreply@github.com>2020-12-19 10:17:08 (GMT)
commit3d569fd6dccf9f582bafaca04d3535094cae393e (patch)
tree2468e1823c476391b2abecc79d093e0cbeb96b0c /Lib/idlelib/pyshell.py
parent1e27b57dbc8c1b758e37a531487813aef2d111ca (diff)
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bpo-42630: Improve error reporting in Tkinter for absent default root (GH-23781)
* Tkinter functions and constructors which need a default root window raise now RuntimeError with descriptive message instead of obscure AttributeError or NameError if it is not created yet or cannot be created automatically. * Add tests for all functions which use default root window. * Fix import in the pynche script.
Diffstat (limited to 'Lib/idlelib/pyshell.py')
-rwxr-xr-xLib/idlelib/pyshell.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/Lib/idlelib/pyshell.py b/Lib/idlelib/pyshell.py
index c3ecdc7..abe8a85 100755
--- a/Lib/idlelib/pyshell.py
+++ b/Lib/idlelib/pyshell.py
@@ -1061,8 +1061,10 @@ class PyShell(OutputWindow):
(sys.version, sys.platform, self.COPYRIGHT, nosub))
self.text.focus_force()
self.showprompt()
+ # User code should use separate default Tk root window
import tkinter
- tkinter._default_root = None # 03Jan04 KBK What's this?
+ tkinter._support_default_root = True
+ tkinter._default_root = None
return True
def stop_readline(self):