Name already in use

…sing docs (#98710)

…ion fault when accessing `frame.f_back` (#100182)

…H-5576)

The itemsize returned in a memoryview of a ctypes array is now computed from the item type, instead of dividing the total size by the length and assuming that the length is not zero.

…rence (#93068)

Mentioned as a desired change by terryjreedy on the corresponding issue,
since Tk is not a subclass of Toplevel.

…ntations of `datetime.time.strftime`, `datetime.datetime.fromtimestamp` (#99993)

Automerge-Triggered-By: GH:brandtbucher

Co-authored-by: pranavtbhat

…he stats (GH-99771)

…ingle digit integers (#100064)

In the docstring of `ParamSpec`, the name of `P = ParamSpec('P')` was
mistakenly written as `'T'`.

…od) (#20621)

Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>

…4837)

…-100142)

…ut (#100154)

…ng (#98796)

This makes a couple related changes to inspect.signature's behaviour
when parsing a signature from `__text_signature__`.

First, `inspect.signature` is documented as only raising ValueError or
TypeError. However, in some cases, we could raise RuntimeError.  This PR
changes that, thereby fixing #83685.

(Note that the new ValueErrors in RewriteSymbolics are caught and then
reraised with a message)

Second, `inspect.signature` could randomly drop parameters that it
didn't understand (corresponding to `return None` in the `p` function).
This is the core issue in #85267. I think this is very surprising
behaviour and it seems better to fail outright.

Third, adding this new failure broke a couple tests. To fix them (and to
e.g. allow `inspect.signature(select.epoll.register)` as in #85267), I
add constant folding of a couple binary operations to RewriteSymbolics.

(There's some discussion of making signature expression evaluation
arbitrary powerful in #68155. I think that's out of scope. The
additional constant folding here is pretty straightforward, useful, and
not much of a slippery slope)

Fourth, while #85267 is incorrect about the cause of the issue, it turns
out if you had consecutive newlines in __text_signature__, you'd get
`tokenize.TokenError`.

Finally, the `if name is invalid:` code path was dead, since
`parse_name` never returned `invalid`.

…aced entry (#91499)

Co-authored-by: Pieter Eendebak <P.T.eendebak@tudelft.nl>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>

Don't specialize if the index is negative.

…H-99616)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>

…99246)

…_read_ready_cb` (#100349)

…n imaplib docs (#99625)

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Christian Heimes <christian@python.org>
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
Fixes #89051

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

Use a stack to implement os.walk iteratively instead of recursively to
avoid hitting recursion limits on deeply nested trees.