Drop test-local timeouts, +`sync_pause` to dev

In `pyproject.toml`,
- include the `sync_pause` group from `dev`, so dev
  installs ship `greenback` for `pause_from_sync()`.

Comment out per-test `@pytest.mark.timeout(...)`
markers in,
- `tests/devx/test_debugger.py`
- `tests/discovery/test_registrar.py`
- `tests/spawn/test_main_thread_forkserver.py`
- `tests/spawn/test_subint_cancellation.py`
- `tests/test_advanced_streaming.py`
- `tests/test_cancellation.py`

The global cap was already dropped (3c366cac); these
were the leftover per-test caps which now block
interactive `pdb` flows under the new spawn backends.

In `uv.lock`,
- pull `greenback` into the resolved `dev` deps
  (per the `sync_pause` include above).
- catch up the prior `xonsh` editable→PyPI switch
  (from the `pyproject.toml` `tool.uv.sources` edit).

(this commit msg was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code

pyproject.toml

@@ -62,6 +62,7 @@ dev = [
   {include-group = 'devx'},
   {include-group = 'testing'},
   {include-group = 'repl'},
+  {include-group = 'sync_pause'},
 ]
 devx = [
   # `tractor.devx` tooling

tests/devx/conftest.py

@@ -4,6 +4,7 @@
 '''
 from __future__ import annotations
 import platform
+import os
 import signal
 import time
 from typing import (
@@ -90,7 +91,6 @@ def spawn(
         https://docs.python.org/3/using/cmdline.html#using-on-controlling-color
 
         '''
-        import os
         # disable colored tbs
         os.environ['PYTHON_COLORS'] = '0'
         # disable all ANSI color output
@@ -104,7 +104,6 @@ def spawn(
         without requiring per-script CLI plumbing.
 
         '''
-        import os
         os.environ['TRACTOR_SPAWN_METHOD'] = start_method
 
     def set_loglevel():
@@ -116,7 +115,6 @@ def spawn(
         the test harness without per-script edits.
 
         '''
-        import os
         if loglevel:
             os.environ['TRACTOR_LOGLEVEL'] = loglevel
         else:
@@ -176,13 +174,11 @@ def spawn(
         if ptyproc.isalive():
             ptyproc.kill(signal.SIGKILL)
 
-    # Scope our env-var mutations to this single fixture
+    # Scope our env-var mutations to this single fixture invocation
-    # invocation — both `TRACTOR_SPAWN_METHOD` and
+    # — both `TRACTOR_SPAWN_METHOD` and `TRACTOR_LOGLEVEL` are
-    # `TRACTOR_LOGLEVEL` are honored by
+    # honored by `tractor._root.open_root_actor()` so leaking them
-    # `tractor._root.open_root_actor()` so leaking them past
+    # past this test could inadvertently re-route a later in-process
-    # this test could inadvertently re-route a later
+    # tractor test's spawn-backend / loglevel.
-    # in-process tractor test's spawn-backend / loglevel.
-    import os
     os.environ.pop('TRACTOR_SPAWN_METHOD', None)
     os.environ.pop('TRACTOR_LOGLEVEL', None)
 

tests/devx/test_debugger.py

@@ -841,7 +841,7 @@ def test_multi_nested_subactors_error_through_nurseries(
     )
 
 
-@pytest.mark.timeout(15)
+# @pytest.mark.timeout(15)
 @has_nested_actors
 def test_root_nursery_cancels_before_child_releases_tty_lock(
     spawn,

tests/discovery/test_registrar.py

@@ -535,13 +535,13 @@ async def kill_transport(
 # At timeout the plugin hard-kills the pytest process — that's
 # the intended behavior here; the alternative is an unattended
 # suite run that never returns.
-@pytest.mark.timeout(
+# @pytest.mark.timeout(
-    30,
+#     30,
-    # NOTE should be a 2.1s happy path.
+#     # NOTE should be a 2.1s happy path.
-    # XXX for `main_thread_forkserver` this is SUPER SENSITIVE
+#     # XXX for `main_thread_forkserver` this is SUPER SENSITIVE
-    # so keep it higher to avoid flaky runs..
+#     # so keep it higher to avoid flaky runs..
-    method='thread',
+#     method='thread',
-)
+# )
 @pytest.mark.skipon_spawn_backend(
     'subint',
     # 'main_thread_forkserver',

tests/spawn/test_main_thread_forkserver.py

@@ -182,7 +182,7 @@ async def run_fork_in_non_trio_thread(
 # `subint_sigint_starvation_issue.md`. Each test also has an
 # inner `trio.fail_after()` so assertion failures fire fast
 # under normal conditions.
-@pytest.mark.timeout(30, method='thread')
+# @pytest.mark.timeout(30, method='thread')
 def test_fork_from_worker_thread_via_trio(
 ) -> None:
     '''

tests/spawn/test_subint_cancellation.py

@@ -179,10 +179,10 @@ def test_subint_happy_teardown(
 # `subint_sigint_starvation_issue.md` GIL-starvation flavor,
 # so `method='thread'` keeps us safe in case ordering or
 # load shifts the failure mode.
-@pytest.mark.timeout(
+# @pytest.mark.timeout(
-    3,  # NOTE never passes pre-3.14+ subints support.
+#     3,  # NOTE never passes pre-3.14+ subints support.
-    method='thread',
+#     method='thread',
-)
+# )
 def test_subint_non_checkpointing_child(
     reg_addr: tuple[str, int|str],
 ) -> None:

tests/test_advanced_streaming.py

@@ -430,10 +430,10 @@ async def inf_streamer(
     print('streamer exited .open_streamer() block')
 
 
-@pytest.mark.timeout(
+# @pytest.mark.timeout(
-    6,
+#     6,
-    method='signal',
+#     method='signal',
-)
+# )
 def test_local_task_fanout_from_stream(
     reg_addr: tuple,
     debug_mode: bool,

tests/test_cancellation.py

@@ -458,10 +458,10 @@ async def spawn_and_error(
 # `test_nested_multierrors`. See
 # `ai/conc-anal/subint_forkserver_test_cancellation_leak_issue.md`
 # / #449 for the post-mortem.
-@pytest.mark.timeout(
+# @pytest.mark.timeout(
-    10,
+#     10,
-    method='thread',
+#     method='thread',
-)
+# )
 @tractor_test
 async def test_nested_multierrors(
     reg_addr: tuple,

uv.lock

@@ -682,6 +682,7 @@ dependencies = [
 
 [package.dev-dependencies]
 dev = [
+    { name = "greenback", marker = "python_full_version < '3.14'" },
     { name = "pexpect" },
     { name = "prompt-toolkit" },
     { name = "psutil" },
@@ -736,6 +737,7 @@ requires-dist = [
 
 [package.metadata.requires-dev]
 dev = [
+    { name = "greenback", marker = "python_full_version == '3.13.*'", specifier = ">=1.2.1,<2" },
     { name = "pexpect", specifier = ">=4.9.0,<5" },
     { name = "prompt-toolkit", specifier = ">=3.0.50" },
     { name = "psutil", specifier = ">=7.0.0" },
@@ -744,7 +746,7 @@ dev = [
     { name = "pytest-timeout", specifier = ">=2.3" },
     { name = "stackscope", specifier = ">=0.2.2,<0.3" },
     { name = "typing-extensions", specifier = ">=4.14.1" },
-    { name = "xonsh", editable = "../xonsh" },
+    { name = "xonsh", specifier = ">=0.23.0" },
 ]
 devx = [
     { name = "stackscope", specifier = ">=0.2.2,<0.3" },
@@ -756,7 +758,7 @@ repl = [
     { name = "prompt-toolkit", specifier = ">=3.0.50" },
     { name = "psutil", specifier = ">=7.0.0" },
     { name = "pyperclip", specifier = ">=1.9.0" },
-    { name = "xonsh", editable = "../xonsh" },
+    { name = "xonsh", specifier = ">=0.23.0" },
 ]
 subints = [{ name = "msgspec", marker = "python_full_version >= '3.14'", specifier = ">=0.21.0" }]
 sync-pause = [{ name = "greenback", marker = "python_full_version == '3.13.*'", specifier = ">=1.2.1,<2" }]
@@ -870,61 +872,15 @@ wheels = [
 
 [[package]]
 name = "xonsh"
-source = { editable = "../xonsh" }
+version = "0.23.2"
-
+source = { registry = "https://pypi.org/simple" }
-[package.metadata]
+sdist = { url = "https://files.pythonhosted.org/packages/60/e5/2dfa99e21a8118bed0e73ed50e91962fdad01b900e23497064e8810b03b5/xonsh-0.23.2.tar.gz", hash = "sha256:633608c8292938af0f242f05326cc2912f25fa72bd808824ab0534a6df304402", size = 1030659, upload-time = "2026-04-26T19:28:40.744Z" }
-requires-dist = [
+wheels = [
-    { name = "click", marker = "extra == 'full'" },
+    { url = "https://files.pythonhosted.org/packages/53/0d/bf7869dd57b40888ea1da8fc88f70d8e94ec2f8ee236ea4c22a757593235/xonsh-0.23.2-py311-none-any.whl", hash = "sha256:a38dd84e23e97fc42e0156c80024b3449474dfcbb6c3a344bd38c45a2b2de44d", size = 756215, upload-time = "2026-04-26T19:28:38.875Z" },
-    { name = "coverage", marker = "extra == 'test'", specifier = ">=5.3.1" },
+    { url = "https://files.pythonhosted.org/packages/f7/9f/b1bb0c15bf2120469c94b062f4b854588370ab94c7a1679c84ff646bf50b/xonsh-0.23.2-py312-none-any.whl", hash = "sha256:190a348fa19774de8e697af5f44c9adb95aca687fa475b31dda23d1a3462a3c6", size = 756224, upload-time = "2026-04-26T19:28:39.17Z" },
-    { name = "distro", marker = "sys_platform == 'linux' and extra == 'full'" },
+    { url = "https://files.pythonhosted.org/packages/83/23/8e037579ac86d8f266b4116338f902eab04175b88574a6438ee739dd3084/xonsh-0.23.2-py313-none-any.whl", hash = "sha256:4ebbf42a94f505d25694f154556ca0caa149a3f59870ec850bd13ad8df519dce", size = 756728, upload-time = "2026-04-26T19:28:39.493Z" },
-    { name = "distro", marker = "extra == 'linux'" },
+    { url = "https://files.pythonhosted.org/packages/05/ec/090300d9c5f14f58b5a684302f43535457f733a62f11673aa3ac38460717/xonsh-0.23.2-py314-none-any.whl", hash = "sha256:5efcd0f6db8f9f1dace256de2c04c3c044f2d86b48434187c43a69d602283a9e", size = 756767, upload-time = "2026-04-26T19:28:37.218Z" },
-    { name = "furo", marker = "extra == 'doc'" },
-    { name = "gnureadline", marker = "sys_platform == 'darwin' and extra == 'full'" },
-    { name = "gnureadline", marker = "extra == 'mac'" },
-    { name = "matplotlib", marker = "extra == 'doc'" },
-    { name = "myst-parser", marker = "extra == 'doc'" },
-    { name = "numpydoc", marker = "extra == 'doc'" },
-    { name = "pre-commit", marker = "extra == 'dev'" },
-    { name = "prompt-toolkit", marker = "extra == 'bestshell'", specifier = ">=3.0.29" },
-    { name = "prompt-toolkit", marker = "extra == 'ptk'", specifier = ">=3.0.29" },
-    { name = "prompt-toolkit", marker = "extra == 'test'", specifier = ">=3.0.29" },
-    { name = "psutil", marker = "extra == 'doc'" },
-    { name = "pygments", marker = "extra == 'bestshell'", specifier = ">=2.2" },
-    { name = "pygments", marker = "extra == 'pygments'", specifier = ">=2.2" },
-    { name = "pygments", marker = "extra == 'test'", specifier = ">=2.2" },
-    { name = "pyperclip", marker = "extra == 'ptk'" },
-    { name = "pyte", marker = "extra == 'test'", specifier = ">=0.8.0" },
-    { name = "pytest", marker = "extra == 'test'", specifier = ">=7" },
-    { name = "pytest-cov", marker = "extra == 'test'" },
-    { name = "pytest-mock", marker = "extra == 'test'" },
-    { name = "pytest-rerunfailures", marker = "extra == 'test'" },
-    { name = "pytest-subprocess", marker = "extra == 'test'" },
-    { name = "pytest-timeout", marker = "extra == 'test'" },
-    { name = "pyzmq", marker = "extra == 'doc'" },
-    { name = "re-ver", marker = "extra == 'dev'" },
-    { name = "requests", marker = "extra == 'test'" },
-    { name = "restructuredtext-lint", marker = "extra == 'test'" },
-    { name = "runthis-sphinxext", marker = "extra == 'doc'" },
-    { name = "setproctitle", marker = "sys_platform == 'win32' and extra == 'full'" },
-    { name = "setproctitle", marker = "extra == 'proctitle'" },
-    { name = "sphinx", marker = "extra == 'doc'", specifier = ">=3.1" },
-    { name = "sphinx-autobuild", marker = "extra == 'doc'" },
-    { name = "sphinx-prompt", marker = "extra == 'doc'" },
-    { name = "sphinx-reredirects", marker = "extra == 'doc'" },
-    { name = "sphinx-sitemap", marker = "extra == 'doc'" },
-    { name = "tomli", marker = "extra == 'dev'" },
-    { name = "tornado", marker = "extra == 'doc'" },
-    { name = "ujson", marker = "extra == 'full'" },
-    { name = "virtualenv", marker = "extra == 'test'", specifier = ">=20.16.2" },
-    { name = "xonsh", extras = ["bestshell"], marker = "extra == 'doc'" },
-    { name = "xonsh", extras = ["bestshell"], marker = "extra == 'test'" },
-    { name = "xonsh", extras = ["doc", "test"], marker = "extra == 'dev'" },
-    { name = "xonsh", extras = ["ptk", "pygments"], marker = "extra == 'full'" },
 ]
-provides-extras = ["ptk", "pygments", "mac", "linux", "proctitle", "full", "bestshell", "test", "dev", "doc"]
-
-[package.metadata.requires-dev]
-dev = [{ name = "xonsh", extras = ["dev"] }]
 
 [[package]]
 name = "zipp"