Introduce support code to get single key presses from a console. Support
Windows (msvcrt) and POSIX supporting Unix platforms (select, termios).
Fall back to Python's input() routine for Webassembly and Emscripten.

Avoid the accumulation of repeated prompts on platforms that support
single key presses. Only the backwards compatible fallback on minor
platforms involves a prompt, and users can tell when they face that
situation.

This change increases usability, a single key press leaves the output
screen after it was entered by pressing 'o'. Does not require a config
item, platform detection is automatic. The approach uses Python core
libraries, no external dependencies are involved. The implementation
is considered maintainable, lends itself to future extension for more
platforms as the need gets identified.

This makes the code a bit easier to follow, and it uses a more
appropriate _set_stopinfo in the pause case, instead of set_step.
Use of set_step was causing set_trace to stop somewhere in the
guts of bdb.

Closes gh-663

This code dates from the very early days of Pudb, possibly copy-pasted
from early pdb. No recent Python seems to have it, and on Py3.13 it
is actively harmful, because its new frame locals proxy prohibits
deletion of frame locals.

These were copy-pasted in from CPython in
https://github.com/inducer/pudb/commit/6065d5a2c53e953e00bf09f826a7cae3b1cadf13
According to https://bugs.python.org/issue16482, where the patch
originated, all supported versions of Python now have the fix.
Additionally, Python 3.13 has further modifications, which we
probably shouldn't copy.

Fergal Armstrong authored Aug 29, 2024 and Andreas Klöckner committed Aug 29, 2024

Making the parent directories of the config file could cause an exception if the process doesn't have write permissions. This is common with remote debugging in containers. Catch exceptions, log, and continue, same as other parts of the settings that cannot raise exceptions. The next stage of saving the config file will also fail, but this is already caught.

Flagged by ruff as B909

dependabot[bot] authored Apr 13, 2024 and Andreas Klöckner committed Apr 13, 2024

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v3...v4

)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* Add PUDB_RDB_REVERSE var to control reverse mode

* Fix flake8 warnings

* Allow defining term_size via PUDB_TERM_SIZE env var

* Add doc

* Fix flake8 issue

* Describe the terminal size precedence

* Mention the PUDB_RDB_HOST and PUDB_RDB_PORT as well

* Fail on invalid PUDB_TERM_SIZE

* Remove dependence on telnetlib which was removed from Python 3.13

Only some constant values were being used so those values were copied
into remote.py instead of being referenced from telnetlib.

* Replace bytes function calls with bytes literals