Message 207232 - Python tracker

Message207232

Author	arigo
Recipients	arigo
Date	2014-01-03.17:59:12
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1388771953.42.0.332804570753.issue20115@psf.upfronthosting.co.za>
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Content
This is probably the smallest example of a .py file that behaves differently in CPython vs PyPy, and for once, I'd argue that the CPython behavior is unexpected: # make the file: >>> open('x.py', 'wb').write('#\x00\na') # run it: python x.py Expected: either some SyntaxError, or "NameError: global name 'a' is not defined". Got: nothing. It seems that CPython completely ignores the line that is immediately after a line with a '#' and a following '\x00'.

Content

This is probably the smallest example of a .py file that behaves differently in CPython vs PyPy, and for once, I'd argue that the CPython behavior is unexpected:

   # make the file:
   >>> open('x.py', 'wb').write('#\x00\na')

   # run it:
   python x.py

Expected: either some SyntaxError, or "NameError: global name 'a' is not defined".  Got: nothing.  It seems that CPython completely ignores the line that is immediately after a line with a '#' and a following '\x00'.

History
Date	User	Action	Args
2014-01-03 17:59:13	arigo	set	recipients: + arigo
2014-01-03 17:59:13	arigo	set	messageid: <1388771953.42.0.332804570753.issue20115@psf.upfronthosting.co.za>
2014-01-03 17:59:13	arigo	link	issue20115 messages
2014-01-03 17:59:12	arigo	create