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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 14:57:43 -08:00
parent 27b154ea57
commit 40ad04171d
2 changed files with 27 additions and 14 deletions
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28
Lib/idlelib/PyShell.py
View file

@ -207,18 +207,26 @@ class PyShellEditorWindow(EditorWindow):
breaks = self.breakpoints
filename = self.io.filename
try:
lines = open(self.breakpointPath,"r").readlines()
with open(self.breakpointPath,"r") as old_file:
lines = old_file.readlines()
except IOError:
lines = []
new_file = open(self.breakpointPath,"w")
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')
new_file.close()
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