upstream/ipython Files · IPython/kernel/tests/test_contexts.py

Lots of work on exception handling, including tests for traceback printing....

Lots of work on exception handling, including tests for traceback printing. We finally have some tests for various exception mode printing, via doctests that exercise all three modes! Also changed handling of sys.exit(X) to only print the summary message, as SystemExit is most often a 'handled' exception. It can still be 100% silenced via '%run -e', but now it's much less intrusive. Added a new %tb magic to print the last available traceback with the current xmode. One can then re-print the last traceback with more detail if desired, without having to cause it again.

Brian Granger - - Load All Authors

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             test_contexts.py
        
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      # Tell nose to skip this module

      __test__ = {}

      #from __future__ import with_statement

      # XXX This file is currently disabled to preserve 2.4 compatibility.

      #def test_simple():

      if 0:

          # XXX - for now, we need a running cluster to be started separately.  The

          # daemon work is almost finished, and will make much of this unnecessary.

          from IPython.kernel import client

          mec = client.MultiEngineClient(('127.0.0.1',10105))

          try:

              mec.get_ids()

          except ConnectionRefusedError:

              import os, time

              os.system('ipcluster -n 2 &')

              time.sleep(2)

              mec = client.MultiEngineClient(('127.0.0.1',10105))

          mec.block = False

          import itertools

          c = itertools.count()

          parallel = RemoteMultiEngine(mec)

          mec.pushAll()

          ## with parallel as pr:

          ##     # A comment

          ##     remote()  # this means the code below only runs remotely

          ##     print 'Hello remote world'

          ##     x = range(10)

          ##     # Comments are OK

          ##     # Even misindented.

          ##     y = x+1

          ## with pfor('i',sequence) as pr:

          ##     print x[i]

          print pr.x + pr.y

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				# Tell nose to skip this module
				__test__ = {}

				#from __future__ import with_statement

				# XXX This file is currently disabled to preserve 2.4 compatibility.

				#def test_simple():
				if 0:

				# XXX - for now, we need a running cluster to be started separately. The
				# daemon work is almost finished, and will make much of this unnecessary.
				from IPython.kernel import client
				mec = client.MultiEngineClient(('127.0.0.1',10105))

				try:
				mec.get_ids()
				except ConnectionRefusedError:
				import os, time
				os.system('ipcluster -n 2 &')
				time.sleep(2)
				mec = client.MultiEngineClient(('127.0.0.1',10105))

				mec.block = False

				import itertools
				c = itertools.count()

				parallel = RemoteMultiEngine(mec)

				mec.pushAll()

				## with parallel as pr:
				## # A comment
				## remote() # this means the code below only runs remotely
				## print 'Hello remote world'
				## x = range(10)
				## # Comments are OK
				## # Even misindented.
				## y = x+1


				## with pfor('i',sequence) as pr:
				## print x[i]

				print pr.x + pr.y