[issue36440] more helpful diagnostics for parser module
Change by Xavier Combelle : -- nosy: -xcombelle ___ Python tracker <https://bugs.python.org/issue36440> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue36256] parser module fails on legal input
Xavier Combelle added the comment: never used the parser module nor lib2to3. Does they have any advantage over ast.parse and ast module ? -- ___ Python tracker <https://bugs.python.org/issue36256> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue28962] Crash when throwing an exception with a malicious __hash__ override
Xavier Combelle added the comment: To my knowledge it is not the kind of arbitrary code which could segfault python code. It is far different for example that the fact by using bytecode magic you can segfault the interpreter, as this last case is explicitly warned in documentation. -- nosy: +xcombelle ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue28962> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue26363] __builtins__ propagation is misleading described in exec and eval documentation
Xavier Combelle added the comment: not an inconsisties but in the eval documentaion nothing specify that the builtins propagate between levels updates -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26363> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue26363] __builtins__ propagation is misleading described in exec and eval documentation
Xavier Combelle added the comment:
Hi Julien,
You are fully right that it is the builtin module dictionnary which is inserted
in eval or exec context.
However, if a "__builtins__" entry is passed to eval or exec, this builtin
module dictionnary is modified hence the following work:
>>> d={"tata":"tata"}
>>> print(eval("tata",{'__builtins__':d}))
tata
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[issue26363] __builtins__ propagation is misleading described in exec and eval documentation
Xavier Combelle added the comment:
It is not the dictionary of builtin module, which is inserted in , but the
current __builtin__ global which happen to be normally the dictionnary of
builtin. Hence in the following code, the builtins propagation works has
expected.
>>> eval("""eval('spam("hello
>>> world")',{})""",{"__builtins__":{"eval":eval,"spam":print}})
hello world
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[issue26415] Excessive peak memory consumption by the Python parser
Xavier Combelle added the comment: Looks that there is two bug as partial solution of the main bug which is reduce memory consumption of the parser: - The compression thing - the reducing of heap fragmentation Could each sub bug have it's own bug tracker and mark them blocking for the main bug ? A. Skrobov Can you describe the big picture of your patch, without I don't understand the logic of your modifications. -- nosy: +xcombelle ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26415> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12345] Add math.tau
Xavier Combelle added the comment: Python will really follow the tau sort joke ? I never saw it mentioned in any serious math or programming document. All the github search result looks like people who are in this joke (kind of). The page http://tauday.com/state-of-the-tau list very little use of tau in relevant domains, the most relevant to our discussion would be the including of tau in modula-2 standard library. I don't see how the introduction of the unknown tau constant in python programs will make them clearer or better to the targeted public who will read them. I must confess however that 2*pi occurs frequently in formula and these formula would be simplified if tau was used. However an honest and non partisan web site would list all the use of pi without 2 where the formula would be more complicated. I don't see that so I'm still not convinced. I know that Guido van Rossum is the Benevolent dictator for life of python, but as I understand it until this point, the dictator position was used after all argument took place and not before. -- nosy: +xcombelle ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue12345> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue26526] In parsermodule.c, replace over 2KLOC of hand-crafted validation code, with a DFA
Xavier Combelle added the comment: The DFA is generated by other part of existing cpython code ? If it's the case looks like you did a great job. -- nosy: +xcombelle ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26526> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25571] Improve the lltrace feature with the Py_Debug mode
Xavier Combelle added the comment: I made some comment on code in review. A thing that worry me that there is zero automated test. In my opinion the minimal should be to test the expected output. A nice to have would be a test for the write_contents function of makeopcodetranslations.py -- nosy: +xcombelle ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25571> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue26363] __builtins__ propagation is misleading described in exec and eval documentation
New submission from Xavier Combelle: According to my experiment in code, the current behavior of python3.5 is different that the document says. If I understand well the purpose of this behavior is to propagate the __builtins__ global constant if globals has not one. In https://docs.python.org/3.6/library/functions.html#eval it is written "If the globals dictionary is present and lacks ‘__builtins__’, the current globals are copied into globals before expression is parsed." only the __builtins__ looks copied not all the globals In https://docs.python.org/3.6/library/functions.html#exec It is written: "If the globals dictionary does not contain a value for the key __builtins__, a reference to the dictionary of the built-in module builtins is inserted under that key." it looks like it is not a reference to the built-in module builtin, but a reference to __builtin__ global -- title: builtins propagation is misleading described in exec and eval documentation -> __builtins__ propagation is misleading described in exec and eval documentation versions: +Python 3.5 ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26363> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue26363] builtins propagation is misleading described in exec and eval documentation
Changes by Xavier Combelle <xavier.combe...@gmail.com>: -- assignee: docs@python components: Documentation nosy: docs@python, xcombelle priority: normal severity: normal status: open title: builtins propagation is misleading described in exec and eval documentation ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26363> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18595] zipfile: symlinks etc.
Xavier Combelle added the comment: about the readlink functionnality, I would like to point that it might lead to security issues see for example https://security.stackexchange.com/questions/73718/how-zip-symlink-works At least, the standard read should not do it by default. -- nosy: +xcombelle ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue18595> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20891] PyGILState_Ensure on non-Python thread causes fatal error
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[issue3849] FUD in documentation for urllib.urlopen()
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[issue20197] Support WebP image format detection in imghdr module
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[issue19024] Document asterisk (*), splat or star operator
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