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bitbake: utils: Improve traceback from better_exec internal errors

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If you break the internals of better_exec(), you get a very weird
error about tb_next not being a method of None. Fix this by checking
we can step back a trace level.

(Bitbake rev: 1d710ed484f68fca0789022dde7ba877b9a894f5)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
2015-12-15 17:42:40 +00:00
parent 0019edc818
commit 5cb6d83f17
1 changed files with 4 additions and 2 deletions
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bitbake/lib/bb/utils.py
+4 -2
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@@ -327,8 +327,10 @@ def _print_exception(t, value, tb, realfile, text, context):
exception = traceback.format_exception_only(t, value) exception = traceback.format_exception_only(t, value)
error.append('Error executing a python function in %s:\n' % realfile) error.append('Error executing a python function in %s:\n' % realfile)
# Strip 'us' from the stack (better_exec call) # Strip 'us' from the stack (better_exec call) unless that was where the
tb = tb.tb_next # error came from
if tb.tb_next is not None:
tb = tb.tb_next
textarray = text.split('\n') textarray = text.split('\n')