Replace old-style raise with six.reraise

The old style raise is invalid syntax in python3. As noted in the docs,
this adds one more frame in the traceback, but I think this is
acceptable:

    <ipython-input-7-bcc5cba3de3f> in <module>()
         16     except:
         17         pass
    ---> 18     six.reraise(*x)

    /usr/lib/python3.6/site-packages/six.py in reraise(tp, value, tb)
        691             if value.__traceback__ is not tb:
        692                 raise value.with_traceback(tb)
    --> 693             raise value
        694         finally:
        695             value = None

    <ipython-input-7-bcc5cba3de3f> in <module>()
          9
         10 try:
    ---> 11     x()
         12 except:
         13     x = sys.exc_info()

Also note that this uses six, which is not formally a dependency yet,
but is included indirectly since most packages depend on it.

Signed-off-by: Adrian Tschira <nota@notafile.com>
This commit is contained in:
Adrian Tschira 2018-04-06 22:57:06 +02:00
parent 135fc5b9cd
commit 4f40d058cc
1 changed files with 3 additions and 1 deletions

View File

@ -16,6 +16,8 @@
from twisted.internet import defer, threads from twisted.internet import defer, threads
from twisted.protocols.basic import FileSender from twisted.protocols.basic import FileSender
import six
from ._base import Responder from ._base import Responder
from synapse.util.file_consumer import BackgroundFileConsumer from synapse.util.file_consumer import BackgroundFileConsumer
@ -119,7 +121,7 @@ class MediaStorage(object):
os.remove(fname) os.remove(fname)
except Exception: except Exception:
pass pass
raise t, v, tb six.reraise(t, v, tb)
if not finished_called: if not finished_called:
raise Exception("Finished callback not called") raise Exception("Finished callback not called")