Andrew/verbose error

src/py/CHANGELOG.txt

@@ -1,3 +1,4 @@
+- Improve verbosity of errors when starting kaleido improperly
 - Add new api functions start/stop_sync_server
 v1.0.0
 - Add warning if using incompatible Plotly version

src/py/kaleido/kaleido.py

@@ -102,6 +102,7 @@ def __init__(self, *args, **kwargs):  # noqa: D417 no args/kwargs in description
         self._background_render_tasks = set()
         self._main_tasks = set()
         self._tabs_ready = asyncio.Queue(maxsize=0)
+        self._total_tabs = 0
         self._tmp_dir = None
 
         page = kwargs.pop("page_generator", None)
@@ -165,6 +166,7 @@ async def _conform_tabs(self, tabs=None) -> None:
         _logger.info("All navigates done, putting them all in queue.")
         for tab in kaleido_tabs:
             await self._tabs_ready.put(tab)
+        self._total_tabs = len(kaleido_tabs)
         _logger.debug("Tabs fully navigated/enabled/ready")
 
     async def populate_targets(self) -> None:
@@ -216,6 +218,10 @@ async def _get_kaleido_tab(self) -> _KaleidoTab:
 
         """
         _logger.info(f"Getting tab from queue (has {self._tabs_ready.qsize()})")
+        if not self._total_tabs:
+            raise RuntimeError(
+                "Before generating a figure, you must await `k.open()`.",
+            )
         tab = await self._tabs_ready.get()
         _logger.info(f"Got {tab.tab.target_id[:4]}")
         return tab
@@ -248,9 +254,12 @@ def _clean_tab_return_task(self, main_task, task):
             raise e
 
     def _check_render_task(self, name, tab, main_task, error_log, task):
-        if e := task.exception():
-            if isinstance(e, asyncio.CancelledError):
-                _logger.info(f"Something cancelled {name}.")
+        if task.cancelled():
+            _logger.info(f"Something cancelled {name}.")
+            error_log.append(
+                ErrorEntry(name, asyncio.CancelledError, tab.javascript_log),
+            )
+        elif e := task.exception():
             _logger.error(f"Render Task Error In {name}- ", exc_info=e)
             if isinstance(e, (asyncio.TimeoutError, TimeoutError)) and error_log:
                 error_log.append(

src/py/pyproject.toml

@@ -26,7 +26,7 @@ maintainers = [
   {name = "Andrew Pikul", email = "ajpikul@gmail.com"},
 ]
 dependencies = [
-  "choreographer>=1.0.5",
+  "choreographer>=1.0.7",
   "logistro>=1.0.8",
   "orjson>=3.10.15",
   "packaging",
@@ -54,17 +54,6 @@ dev = [
   "typing-extensions>=4.12.2",
 ]
 
-#docs = [
-#    "mkquixote @ git+ssh://git@github.com/geopozo/mkquixote; python_version>= '3.11'",
-#    "mkdocs>=1.6.1",
-#    "mkdocs-material>=9.5.49",
-#]
-
-#[tool.uv.sources]
-#mkquixote = { path = "../../../mkquixote", editable = true }
-#choreographer = { path = "../../../devtools_protocol", editable = true }
-#logistro = { path = "../../../logistro", editable = true }
-
 [tool.ruff.lint]
 select = ["ALL"]
 ignore = [