upstream/ipython Files · IPython/core/tests/tclass.py

Manage and propagate argv correctly....

Manage and propagate argv correctly. All Application objects should take argv in their constructor, akin to how the standard signature of C programs is "main(int argc, char *argv)". This makes it possible to initialize them from code with different command-line options (otherwise, they end up directly accessing sys.argv[1:] via argparse).

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             tclass.py
        
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      """Simple script to instantiate a class for testing %run"""

      import sys

      # An external test will check that calls to f() work after %run

      class foo: pass

      def f():

          return foo()

      # We also want to ensure that while objects remain available for immediate

      # access, objects from *previous* runs of the same script get collected, to

      # avoid accumulating massive amounts of old references.

      class C(object):

          def __init__(self,name):

              self.name = name

          def __del__(self):

              print 'tclass.py: deleting object:',self.name

      try:

          name = sys.argv[1]

      except IndexError:

          pass

      else:

          if name.startswith('C'):

              c = C(name)

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				"""Simple script to instantiate a class for testing %run"""

				import sys

				# An external test will check that calls to f() work after %run
				class foo: pass

				def f():
				return foo()

				# We also want to ensure that while objects remain available for immediate
				# access, objects from previous runs of the same script get collected, to
				# avoid accumulating massive amounts of old references.
				class C(object):
				def __init__(self,name):
				self.name = name

				def __del__(self):
				print 'tclass.py: deleting object:',self.name

				try:
				name = sys.argv[1]
				except IndexError:
				pass
				else:
				if name.startswith('C'):
				c = C(name)