COMPAT: Bokeh 3.6 and add minimal test for Bokeh 3.5 (#7322)

.github/workflows/test.yaml

@@ -243,7 +243,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest"]
-        environment: ["test-core"]
+        environment: ["test-core", "test-minimum"]
     timeout-minutes: 120
     steps:
       - uses: holoviz-dev/holoviz_tasks/pixi_install@v0

doc/how_to/integrations/FastAPI.md

@@ -22,8 +22,6 @@ pip install panel[fastapi]
 ```bash
 conda install -c conda-forge bokeh-fastapi
 ```
-
-Note: As of September 24th 2024 this is waiting on [conda-forge/staged-recipes#27575](https://github.com/conda-forge/staged-recipes/pull/27575).
 :::
 
 ::::

panel/models/tabulator.ts

@@ -1,4 +1,5 @@
 import {undisplay} from "@bokehjs/core/dom"
+import {sum} from "@bokehjs/core/util/arrayable"
 import {isArray, isBoolean, isString, isNumber} from "@bokehjs/core/util/types"
 import {ModelEvent} from "@bokehjs/core/bokeh_events"
 import {div} from "@bokehjs/core/dom"
@@ -80,7 +81,7 @@ function summarize(grouped: any[], columns: any[], aggregators: string[], depth:
     const subsummary = summarize(group._children, columns, aggregators, depth+1)
     for (const col in subsummary) {
       if (isArray(subsummary[col])) {
-        group[col] = subsummary[col].reduce((a: any, b: any) => a + b, 0) / subsummary[col].length
+        group[col] = sum(subsummary[col] as number[]) / subsummary[col].length
       } else {
         group[col] = subsummary[col]
       }

panel/package.json

@@ -1,14 +1,14 @@
 {
   "name": "@holoviz/panel",
-  "version": "1.5.1-a.1",
+  "version": "1.5.1-a.2",
   "description": "The powerful data exploration & web app framework for Python.",
   "license": "BSD-3-Clause",
   "repository": {
     "type": "git",
     "url": "https://github.com/holoviz/panel.git"
   },
   "dependencies": {
-    "@bokeh/bokehjs": "3.5.2",
+    "@bokeh/bokehjs": "3.6.0",
     "@types/debounce": "^1.2.0",
     "@types/gl-matrix": "^2.4.5",
     "ace-code": "^1.24.1",

panel/tests/ui/widgets/test_tabulator.py

@@ -24,6 +24,7 @@
 from panel.layout.base import Column
 from panel.models.tabulator import _TABULATOR_THEMES_MAPPING
 from panel.tests.util import get_ctrl_modifier, serve_component, wait_until
+from panel.util import BOKEH_GE_3_6
 from panel.widgets import Select, Tabulator, TextInput
 
 pytestmark = pytest.mark.ui
@@ -366,10 +367,12 @@ def test_tabulator_formatters_bokeh_string(page, df_mixed):
 
     serve_component(page, widget)
 
-    expect(page.locator('text="A"')).to_have_attribute(
-        "style",
-        "font-weight: bold; text-align: center; color: rgb(255, 0, 0);"
-    )
+    if BOKEH_GE_3_6:
+        style = "font-weight: bold; text-align: center; color: red;"
+    else:
+        style = "font-weight: bold; text-align: center; color: rgb(255, 0, 0);"
+
+    expect(page.locator('text="A"')).to_have_attribute("style", style)
 
 
 def test_tabulator_formatters_bokeh_html_multiple_columns(page, df_mixed):

panel/util/__init__.py

@@ -44,6 +44,7 @@
 log = logging.getLogger('panel.util')
 
 bokeh_version = Version(Version(bokeh.__version__).base_version)
+BOKEH_GE_3_6 = bokeh_version >= Version('3.6')
 
 PARAM_NAME_PATTERN = re.compile(r'^.*\d{5}$')
 

pixi.toml

@@ -1,6 +1,6 @@
 [project]
 name = "panel"
-channels = ["pyviz/label/dev", "bokeh", "conda-forge"]
+channels = ["pyviz/label/dev", "bokeh/label/rc", "conda-forge"]
 platforms = ["linux-64", "osx-arm64", "osx-64", "win-64"]
 
 [activation.env]
@@ -16,6 +16,7 @@ test-311 = ["py311", "test-core", "test", "example", "test-example", "test-unit-
 test-312 = ["py312", "test-core", "test", "example", "test-example", "test-unit-task"]
 test-ui = ["py312", "test-core", "test", "test-ui"]
 test-core = ["py313", "test-core", "test-unit-task"]
+test-minimum = ["py310", "test-core", "test-unit-task", "test-minimum"]
 test-type = ["py311", "type"]
 docs = ["py311", "example", "doc"]
 build = ["py311", "build"]
@@ -28,7 +29,7 @@ nomkl = "*"
 pip = "*"
 # Required
 bleach = "*"
-bokeh = ">=3.5.0,<3.6.0"
+bokeh = ">=3.5.0,<3.7.0"
 linkify-it-py = "*"
 markdown = "*"
 markdown-it-py = "*"
@@ -52,7 +53,7 @@ python = "3.11.*"
 python = "3.12.*"
 
 [feature.py313]
-channels = ["pyviz/label/dev", "conda-forge/label/python_rc", "conda-forge"]
+channels = ["pyviz/label/dev", "bokeh/label/rc", "conda-forge/label/python_rc", "conda-forge"]
 
 [feature.py313.dependencies]
 python = "3.13.*"
@@ -113,6 +114,15 @@ pytest-github-actions-annotate-failures = "*"
 pytest-rerunfailures = "*"
 pytest-xdist = "*"
 
+[feature.test-minimum.dependencies]
+# Lower pin of required dependencies
+bokeh = "3.5.*"
+# numpy = "1.21.*"
+# pandas = "1.3.*"  # Pandas 1.2 is not available for Python 3.10
+# param = "2.1.*"
+# pyviz_comms = "2.0.*"
+# tqdm = "4.48.*"
+
 [feature.test.dependencies]
 # Optional dependencies - recommended
 holoviews = ">=1.16.0"
@@ -125,6 +135,7 @@ watchfiles = "*"
 # Test dependencies
 altair = "*"
 anywidget = "*"
+bokeh-fastapi = "*"
 bokeh_sampledata = "*"
 diskcache = "*"
 fastapi = "*"
@@ -137,9 +148,6 @@ reacton = "*"
 scipy = "*"
 textual = "*"
 
-[feature.test.pypi-dependencies]
-bokeh-fastapi = "~=0.1.0a0"
-
 [feature.test-unit-task.tasks] # So it is not showing up in the test-ui environment
 test-unit = 'pytest panel/tests -n logical --dist loadgroup'
 test-subprocess = 'pytest panel/tests --subprocess'
@@ -152,7 +160,7 @@ test-example = 'pytest -n logical --dist loadscope --nbval-lax examples'
 nbval = "*"
 
 [feature.test-ui]
-channels = ["pyviz/label/dev", "bokeh", "microsoft", "conda-forge"]
+channels = ["pyviz/label/dev", "bokeh/label/rc", "microsoft", "conda-forge"]
 
 [feature.test-ui.dependencies]
 playwright = { version = "*", channel = "microsoft" }

pyproject.toml

@@ -3,7 +3,7 @@ requires = [
     "hatchling",
     "hatch-vcs",
     "param >=2.1.0",
-    "bokeh >=3.5.0,<3.6.0",
+    "bokeh >=3.5.0,<3.7.0",
     "pyviz_comms >=0.7.4",
     "requests",
     "packaging",
@@ -48,7 +48,7 @@ classifiers = [
 ]
 
 dependencies = [
-    'bokeh >=3.5.0,<3.6.0',
+    'bokeh >=3.5.0,<3.7.0',
     'param >=2.1.0,<3.0',
     'pyviz_comms >=2.0.0',
     'markdown',