Merge pull request #1804 from Avaiga/feat/#1748-stop-python3.8-support

Feature/#1748 - Stop supporting python 3.8

.github/workflows/dependencies-management.yml

@@ -22,7 +22,7 @@ jobs:
     timeout-minutes: 20
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
         os: [ubuntu-latest]
     permissions:
       contents: write

.github/workflows/overall-tests.yml

@@ -52,7 +52,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
         os: [ubuntu-latest, windows-latest, macos-13]
         pipfile-version: ['min', 'max']
     runs-on: ${{ matrix.os }}
@@ -80,7 +80,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
         os: [ubuntu-latest, windows-latest, macos-13]
         orchestrator: ['orchestrator_dispatcher', 'standalone']
         pipfile-version: ['min', 'max']

.github/workflows/packaging.yml

@@ -20,7 +20,7 @@ jobs:
     timeout-minutes: 30
     strategy:
       matrix:
-        python-versions: [ '3.8', '3.9', '3.10', '3.11', '3.12']
+        python-versions: ['3.9', '3.10', '3.11', '3.12']
         os: [ubuntu-latest, macos-13, windows-latest]
 
     runs-on: ${{ matrix.os }}

.github/workflows/partial-tests.yml

@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
         os: [ubuntu-latest, windows-latest, macos-13]
     runs-on: ${{ matrix.os }}
     steps:
@@ -143,7 +143,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
         os: [ubuntu-latest, windows-latest, macos-13]
     runs-on: ${{ matrix.os }}
     steps:
@@ -186,7 +186,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
         os: [ubuntu-latest, windows-latest, macos-13]
     runs-on: ${{ matrix.os }}
     steps:

.github/workflows/publish.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.9
 
       - name: Extract Github Tag Version
         id: vars
@@ -104,7 +104,7 @@ jobs:
     timeout-minutes: 30
     strategy:
       matrix:
-        python-versions: ['3.8','3.9','3.10', '3.11', '3.12']
+        python-versions: ['3.9','3.10', '3.11', '3.12']
         os: [ubuntu-latest,windows-latest,macos-13]
     runs-on: ${{ matrix.os }}
     steps:

INSTALLATION.md

@@ -5,7 +5,7 @@ There are different ways to install Taipy, depending on how you plan to use it.
 If your goal is to look into the code, modify and improve it, go straight
 to the [source installation](#installing-for-development) section.
 
-Taipy needs your system to have Python 3.8 or above installed.
+Taipy needs your system to have Python 3.9 or above installed.
 
 ## Installing from PyPI
 

Pipfile

@@ -6,7 +6,6 @@ name = "pypi"
 [packages]
 apispec = {extras = ["yaml"], version = "==6.3"}
 apispec-webframeworks = "==0.5.2"
-"backports.zoneinfo" = {version="==0.2.1", markers="python_version < '3.9'", extras=["tzdata"]}
 cookiecutter = "==2.1.1"
 deepdiff = "==6.7.1"
 flask = "==3.0.0"

doc/gui/extension/README.md

@@ -45,7 +45,7 @@ This section explains how to build the custom extension library.
 
 To complete the build of the extension library, we need the following tools:
 
-- Python 3.8 or higher;
+- Python 3.9 or higher;
 - Taipy GUI 2.2 or higher;
 - [Node.js](https://nodejs.org/en/) 18.0 or higher: a JavaScript runtime.<br/>
   This embeds [npm](https://www.npmjs.com/), the Node Package Manager.

doc/gui/extension/pyproject.toml

@@ -7,15 +7,14 @@ version = "1.0.0"
 authors = [ { name = "Taipy" } ]
 description = "A Taipy GUI extension library example."
 readme = { file = "README.md", content-type = "text/markdown" }
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 keywords = [ "taipy" ]
 license = { text = "Apache License 2.0" }
 classifiers = [
     "Intended Audience :: Developers",
     # "License :: OSI Approved :: Apache Software License",
     "Natural Language :: English",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "taipy"
 description = "A 360° open-source platform from Python pilots to production-ready web apps."
 readme = "package_desc.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = {text = "Apache License 2.0"}
 authors = [{name = "Avaiga", email = "[email protected]"}]
 keywords = ["taipy"]
@@ -15,7 +15,6 @@ classifiers = [
     "License :: OSI Approved :: Apache Software License",
     "Natural Language :: English",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",

taipy/config/pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "taipy-config"
 description = "A Taipy package dedicated to easily configure a Taipy application."
 readme = "package_desc.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = {text = "Apache License 2.0"}
 authors = [{name = "Avaiga", email = "[email protected]"}]
 keywords = ["taipy-config"]
@@ -15,7 +15,6 @@ classifiers = [
     "License :: OSI Approved :: Apache Software License",
     "Natural Language :: English",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",

taipy/core/_entity/_dag.py

@@ -8,8 +8,8 @@
 # Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 # an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 # specific language governing permissions and limitations under the License.
+
 import math
-from functools import reduce
 from typing import Any, Dict, List, Tuple
 
 import networkx as nx
@@ -60,7 +60,7 @@ def __compute_grid_size(self) -> Tuple[int, int]:
         if self._width == 1:
             grd_wdt = 1
         else:
-            grd_wdt = self.__lcm(*[len(i) + 1 if len(i) != self._width else len(i) - 1 for i in self._sorted_nodes]) + 1
+            grd_wdt = math.lcm(*[len(i) + 1 if len(i) != self._width else len(i) - 1 for i in self._sorted_nodes]) + 1
         return len(self._sorted_nodes), grd_wdt
 
     def __compute_nodes(self) -> Dict[str, _Node]:
@@ -81,11 +81,3 @@ def __compute_nodes(self) -> Dict[str, _Node]:
 
     def __compute_edges(self, dag) -> List[_Edge]:
         return [_Edge(self.nodes[edge[0].id], self.nodes[edge[1].id]) for edge in dag.edges()]
-
-    @staticmethod
-    def __lcm(*integers) -> int:
-        # Function math.lcm is only implemented for Python 3.9+
-        # For compatibility with Python 3.8 it has been re implemented.
-        if 0 in integers:
-            return 0
-        return reduce(lambda x, y: (x * y) // math.gcd(x, y), integers)

taipy/core/pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "taipy-core"
 description = "A Python library to build powerful and customized data-driven back-end applications."
 readme = "package_desc.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = {text = "Apache License 2.0"}
 authors = [{name = "Avaiga", email = "[email protected]"}]
 keywords = ["taipy-core"]
@@ -15,7 +15,6 @@ classifiers = [
     "License :: OSI Approved :: Apache Software License",
     "Natural Language :: English",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",

taipy/gui/INSTALLATION.md

@@ -12,7 +12,7 @@ you plan to use it:
 - [Debugging the JavaScript bundle](#debugging-the-javascript-bundle)
 - [Running the tests](#running-the-tests)
 
-Taipy GUI needs your system to have **Python 3.8** or above installed.
+Taipy GUI needs your system to have **Python 3.9** or above installed.
 
 ## Installing the latest release
 

taipy/gui/builder/_element.py

@@ -14,9 +14,7 @@
 import ast
 import copy
 import inspect
-import io
 import re
-import sys
 import typing as t
 import uuid
 from abc import ABC, abstractmethod
@@ -25,9 +23,6 @@
 
 from .._warnings import _warn
 from ..utils import _getscopeattr
-
-if sys.version_info < (3, 9):
-    from ..utils.unparse import _Unparser
 from ._context_manager import _BuilderContextManager
 from ._factory import _BuilderFactory
 from ._utils import _LambdaByName, _python_builtins, _TransformVarToValue
@@ -129,13 +124,7 @@ def __parse_lambda_property(self, key: str, value: t.Any) -> t.Any:
             ]
             tree = _TransformVarToValue(self.__calling_frame, args + targets + _python_builtins).visit(lambda_fn)
             ast.fix_missing_locations(tree)
-            if sys.version_info < (3, 9):  # python 3.8 ast has no unparse
-                string_fd = io.StringIO()
-                _Unparser(tree, string_fd)
-                string_fd.seek(0)
-                lambda_text = string_fd.read()
-            else:
-                lambda_text = ast.unparse(tree)
+            lambda_text = ast.unparse(tree)
             lambda_name = f"__lambda_{uuid.uuid4().hex}"
             self._lambdas[lambda_name] = lambda_text
             return f'{{{lambda_name}({", ".join(args)})}}'

taipy/gui/package_desc.md

@@ -35,7 +35,7 @@ you plan to use it:
 - [Debugging the JavaScript bundle](#debugging-the-javascript-bundle)
 - [Running the tests](#running-the-tests)
 
-Taipy GUI needs your system to have **Python 3.8** or above installed.
+Taipy GUI needs your system to have **Python 3.9** or above installed.
 
 ### Installing the latest release
 

taipy/gui/pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "taipy-gui"
 description = "Low-code library to create graphical user interfaces on the Web for your Python applications."
 readme = "package_desc.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = {text = "Apache License 2.0"}
 authors = [{name = "Avaiga", email = "[email protected]"}]
 keywords = ["taipy-gui"]
@@ -15,7 +15,6 @@ classifiers = [
     "License :: OSI Approved :: Apache Software License",
     "Natural Language :: English",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",