chore!: Add python 3.13 support (#1711)

Co-authored-by: Carson Sievert <cpsievert1@gmail.com>
Co-authored-by: Karan <karangattu@users.noreply.github.com>

Author: 3 people

.github/py-shiny/setup/action.yaml

@@ -4,7 +4,7 @@ inputs:
   python-version:
     description: 'Python version to use'
     required: false
-    default: "3.12"
+    default: "3.13"
 runs:
   using: "composite"
   steps:
@@ -39,12 +39,6 @@ runs:
         run: |
           make ci-install-wheel
 
-      - name: Install backports.tarfile
-        if: ${{ startsWith(inputs.python-version, '3.8') }}
-        shell: bash
-        run: |
-          uv pip install backports.tarfile
-
       - name: Pip list
         shell: bash
         run: |

.github/workflows/build-docs.yaml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.12"]
+        python-version: ["3.13"]
       fail-fast: false
 
     steps:

.github/workflows/pytest.yaml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         # "3.10" must be a string; otherwise it is interpreted as 3.1.
-        python-version: ["3.12", "3.11", "3.10", "3.9"]
+        python-version: ["3.13", "3.12", "3.11", "3.10", "3.9"]
         os: [ubuntu-latest, windows-latest, macOS-latest]
         exclude:
           - python-version: ${{ github.event.pull_request.draft && '3.11' }}
@@ -73,7 +73,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: "Set up Python 3.10"
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: "3.10"
       - name: Install dependencies
@@ -107,7 +107,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.12", "3.11", "3.10", "3.9"]
+        python-version: ["3.13", "3.12", "3.11", "3.10", "3.9"]
         browser: ["chromium", "firefox", "webkit"]
         exclude:
           - python-version: ${{ github.event.pull_request.draft && '3.11' }}
@@ -117,8 +117,6 @@ jobs:
           - browser: ${{ github.event.pull_request.draft && 'webkit' }}
           # There are many unexplained tests that fail on webkit w/ python 3.8, 3.9
           # Given the more recent versions of python work, we will exclude this combination
-          - browser: "webkit"
-            python-version: "3.8"
           - browser: "webkit"
             python-version: "3.9"
       fail-fast: false
@@ -157,7 +155,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.12", "3.11", "3.10", "3.9"]
+        python-version: ["3.13", "3.12", "3.11", "3.10", "3.9"]
         browser: ["chromium", "firefox", "webkit"]
         exclude:
           - python-version: ${{ github.event.pull_request.draft && '3.11' }}

pyproject.toml

@@ -26,6 +26,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
 ]
 dependencies = [
     "typing-extensions>=4.10.0",
@@ -54,8 +55,8 @@ theme = ["libsass>=0.23.0", "brand_yml>=0.1.0"]
 test = [
     "pytest>=6.2.4",
     "pytest-asyncio>=0.17.2",
-    "pytest-playwright>=0.3.0",
-    "playwright>=1.43.0",
+    "pytest-playwright>=0.5.2",
+    "playwright>=1.48.0",
     "pytest-xdist",
     "pytest-timeout",
     "pytest-rerunfailures",
@@ -86,7 +87,6 @@ test = [
     "faicons",
     "ridgeplot",
     "great_tables",
-    "modin[all]",
     "polars",
     "dask[dataframe]",
     "pyarrow",

shiny/_datastructures.py

@@ -15,8 +15,6 @@ class PriorityQueueFIFO(Generic[T]):
     """
 
     def __init__(self) -> None:
-        # Using Tuple instead of tuple because in Python 3.8 and earlier, tuple isn't
-        # generic
         self._pq: PriorityQueue[tuple[int, int, T]] = PriorityQueue()
         self._counter: int = 0
 

shiny/_utils.py

@@ -72,16 +72,14 @@ def sort_keys_length(x: dict[str, T], descending: bool = False) -> dict[str, T]:
 
 
 def guess_mime_type(
-    url: "str | os.PathLike[str]",
+    url: str | os.PathLike[str],
     default: str = "application/octet-stream",
     strict: bool = True,
 ) -> str:
     """
     Guess the MIME type of a file. This is a wrapper for mimetypes.guess_type, but it
     only returns the type (and not encoding), and it allows a default value.
     """
-    # Note that in the parameters above, "os.PathLike[str]" is in quotes to avoid
-    # "TypeError: 'ABCMeta' object is not subscriptable", in Python<=3.8.
     if url:
         # Work around issue #1601, some installations of Windows 10 return text/plain
         # as the mime type for .js files

shiny/render/_render.py

@@ -4,9 +4,6 @@
 import os
 import sys
 import typing
-
-# `typing.Dict` sed for python 3.8 compatibility
-# Can use `dict` in python >= 3.9
 from typing import TYPE_CHECKING, Any, Callable, Literal, Optional, Union, cast
 
 from htmltools import Tag, TagAttrValue, TagChild

shiny/render/renderer/_renderer.py

@@ -336,9 +336,6 @@ def _auto_register(self) -> None:
                 self._auto_registered = True
 
 
-# Not inheriting from `WrapAsync[[], IT]` as python 3.8 needs typing extensions that
-# doesn't support `[]` for a ParamSpec definition. :-( Would be minimal/clean if we
-# could do `class AsyncValueFn(WrapAsync[[], IT]):`
 class AsyncValueFn(Generic[IT]):
     """
     App-supplied output value function which returns type `IT`.

tests/playwright/shiny/components/data_frame/data_type/app.py

@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-import modin.pandas as mpd  # pyright: ignore[reportMissingTypeStubs]
 import narwhals.stable.v1 as nw
 import palmerpenguins  # pyright: ignore[reportMissingTypeStubs]
 import polars as pl
@@ -12,7 +11,6 @@
 
 nw_df = nw.from_native(pd_df, eager_only=True)
 pa_df = pa.table(pd_df)  # pyright: ignore[reportUnknownMemberType]
-mpd_df = mpd.DataFrame(pd_df)
 pl_df = pl.DataFrame(pd_df)
 
 
@@ -138,46 +136,6 @@ def pa_data_view():
         def pa_data_view_selected():
             return str(type(pa_df_original.data_view(selected=True)))
 
-    with ui.card():
-        ui.h2("Modin Data")
-
-        @render.data_frame
-        def mpd_df_original():
-            return render.DataGrid(
-                data=mpd_df,
-                selection_mode="row",
-            )
-
-        "Selected row:"
-
-        @render.data_frame
-        def selected_mpd_row():
-            return mpd_df_original.data_view(selected=True)
-
-        "Data type:"
-
-        @render.code
-        def mpd_type():
-            return str(type(mpd_df))
-
-        ui.markdown("`.data()` type:")
-
-        @render.code
-        def mpd_data():
-            return str(type(mpd_df_original.data()))
-
-        ui.markdown("`.data_view()` type:")
-
-        @render.code
-        def mpd_data_view():
-            return str(type(mpd_df_original.data_view()))
-
-        ui.markdown("`.data_view(selected=True)` type:")
-
-        @render.code
-        def mpd_data_view_selected():
-            return str(type(mpd_df_original.data_view(selected=True)))
-
     with ui.card():
         ui.h2("Polars Data")
 

tests/playwright/shiny/components/data_frame/data_type/test_df_data_type.py

@@ -30,12 +30,6 @@
         "df_original": "pl_df_original",
         "selected_row": "selected_pl_row",
     },
-    {
-        "name": "modin",
-        "prefix": "mpd",
-        "df_original": "mpd_df_original",
-        "selected_row": "selected_mpd_row",
-    },
 ]