[issue2598] { +(}.format(**{' +(': 44}) should produce ValueError: invalid identifier, ' +(' in format
Eric Smith [EMAIL PROTECTED] added the comment:
After discussing this with Talin, we've decided this is works as
designed. The problem, if any, is that **{' +(': 44} is allowed as a
parameter. I think that perhaps that should be an error, but I haven't
had time to research if this is already a known issue.
--
resolution: - rejected
status: open - closed
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[issue2598] { +(}.format(**{' +(': 44}) should produce ValueError: invalid identifier, ' +(' in format
Eric Smith [EMAIL PROTECTED] added the comment:
I should have been clearer. By The problem, if any, is that **{' +(':
44} is allowed as a parameter, I meant in general, for all
function/method calls. It's not an issue that's restricted to str.format().
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[issue2598] { +(}.format(**{' +(': 44}) should produce ValueError: invalid identifier, ' +(' in format
Changes by Eric Smith [EMAIL PROTECTED]: -- assignee: - eric.smith nosy: +eric.smith __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue2598 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue2598] { +(}.format(**{' +(': 44}) should produce ValueError: invalid identifier, ' +(' in format
Bruce Frederiksen [EMAIL PROTECTED] added the comment:
I was reading the 3.0 documentation:
http://docs.python.org/dev/3.0/library/string.html#formatstrings which
indicated that an identifier was required. I was unaware of the
implementation note in the PEP.
They only issue remaining is that for the example in the title of this
issue, { +(}.format(**{' +(': 44}), no error is generated. I agree
that this is a nit and presumably the will of the community reviewing
the PEP, so agree to having the issue rejected.
I would reject it myself, but am unable to do so...
Thank you for pointing out the PEP to me.
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[issue2598] { +(}.format(**{' +(': 44}) should produce ValueError: invalid identifier, ' +(' in format
Alexander Belopolsky [EMAIL PROTECTED] added the comment: This is a feature explained in PEP 3101: Implementation note: The implementation of this proposal is not required to enforce the rule about a simple or dotted name being a valid Python identifier. Instead, it will rely on the getattr function of the underlying object to throw an exception if the identifier is not legal. The str.format() function will have a minimalist parser which only attempts to figure out when it is done with an identifier (by finding a '.' or a ']', or '}', etc.). http://www.python.org/dev/peps/pep-3101 Why is that a problem for you? -- nosy: +belopolsky __ Tracker [EMAIL PROTECTED] http://bugs.python.org/issue2598 __ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue2598] { +(}.format(**{' +(': 44}) should produce ValueError: invalid identifier, ' +(' in format
New submission from Bruce Frederiksen [EMAIL PROTECTED]:
Format strings are documented to only allow identifiers or integers as
the field_name, but allow almost anything.
Python 3.0a3
--
components: Interpreter Core
messages: 65209
nosy: dangyogi
severity: normal
status: open
title: { +(}.format(**{' +(': 44}) should produce ValueError: invalid
identifier, ' +(' in format
type: behavior
versions: Python 3.0
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