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libpython.py (gdb) now catchs IOError in py-list and py-bt commands 

py-list displays the error. py-bt ignores the error (the filename and line
number is already displayed).
This commit is contained in:
Victor Stinner 2011-07-01 12:57:44 +02:00
parent 98b3722bf7
commit d57c5c8a3a
1 changed files with 18 additions and 4 deletions
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22
Tools/gdb/libpython.py
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@ -905,7 +905,11 @@ class PyFrameObjectPtr(PyObjectPtr):
if self.is_optimized_out():
return '(frame information optimized out)'
filename = self.filename()
with open(os_fsencode(filename), 'r') as f:
try:
f = open(os_fsencode(filename), 'r')
except IOError:
return None
with f:
all_lines = f.readlines()
# Convert from 1-based current_line_num to 0-based list offset:
return all_lines[self.current_line_num()-1]
@ -1430,7 +1434,9 @@ class Frame(object):
if pyop:
line = pyop.get_truncated_repr(MAX_OUTPUT_LEN)
write_unicode(sys.stdout, '#%i %s\n' % (self.get_index(), line))
sys.stdout.write(pyop.current_line())
line = pyop.current_line()
if line is not None:
sys.stdout.write(line)
else:
sys.stdout.write('#%i (unable to read python frame information)\n' % self.get_index())
else:
@ -1441,7 +1447,9 @@ class Frame(object):
pyop = self.get_pyop()
if pyop:
pyop.print_traceback()
sys.stdout.write(' %s\n' % pyop.current_line().strip())
line = pyop.current_line()
if line is not None:
sys.stdout.write(' %s\n' % line.strip())
else:
sys.stdout.write(' (unable to read python frame information)\n')
else:
@ -1501,7 +1509,13 @@ class PyList(gdb.Command):
if start<1:
start = 1
with open(os_fsencode(filename), 'r') as f:
try:
f = open(os_fsencode(filename), 'r')
except IOError as err:
sys.stdout.write('Unable to open %s: %s\n'
% (filename, err))
return
with f:
all_lines = f.readlines()
# start and end are 1-based, all_lines is 0-based;
# so [start-1:end] as a python slice gives us [start, end] as a