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Issue #4625: If IDLE cannot write to its recent file or breakpoint

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files, display a message popup and continue rather than crash.
(original patch by Roger Serwy)
This commit is contained in:
Ned Deily 2011-12-14 15:03:31 -08:00
commit 1b0b6ae36b
2 changed files with 26 additions and 13 deletions
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15
Lib/idlelib/EditorWindow.py
View File

@ -799,12 +799,17 @@ class EditorWindow(object):
rf_list = [path for path in rf_list if path not in bad_paths]
ulchars = "1234567890ABCDEFGHIJK"
rf_list = rf_list[0:len(ulchars)]
rf_file = open(self.recent_files_path, 'w',
encoding='utf_8', errors='replace')
try:
rf_file.writelines(rf_list)
finally:
rf_file.close()
with open(self.recent_files_path, 'w',
encoding='utf_8', errors='replace') as rf_file:
rf_file.writelines(rf_list)
except IOError as err:
if not getattr(self.root, "recentfilelist_error_displayed", False):
self.root.recentfilelist_error_displayed = True
tkMessageBox.showerror(title='IDLE Error',
message='Unable to update Recent Files list:\n%s'
% str(err),
parent=self.text)
# for each edit window instance, construct the recent files menu
for instance in self.top.instance_dict:
menu = instance.recent_files_menu

24
Lib/idlelib/PyShell.py
View File

@ -206,14 +206,22 @@ class PyShellEditorWindow(EditorWindow):
lines = fp.readlines()
except IOError:
lines = []
with open(self.breakpointPath, "w") as new_file:
for line in lines:
if not line.startswith(filename + '='):
new_file.write(line)
self.update_breakpoints()
breaks = self.breakpoints
if breaks:
new_file.write(filename + '=' + str(breaks) + '\n')
try:
with open(self.breakpointPath, "w") as new_file:
for line in lines:
if not line.startswith(filename + '='):
new_file.write(line)
self.update_breakpoints()
breaks = self.breakpoints
if breaks:
new_file.write(filename + '=' + str(breaks) + '\n')
except IOError as err:
if not getattr(self.root, "breakpoint_error_displayed", False):
self.root.breakpoint_error_displayed = True
tkMessageBox.showerror(title='IDLE Error',
message='Unable to update breakpoint list:\n%s'
% str(err),
parent=self.text)
def restore_file_breaks(self):
self.text.update() # this enables setting "BREAK" tags to be visible