Remove code related to Ubuntu 18.04. (#226)

.github/workflows/build-python-packages.yml

@@ -15,7 +15,7 @@ on:
       PLATFORMS:
         description: 'Platforms for execution in "os" or "os_arch" format (arch is "x64" by default)'
         required: true
-        default: 'ubuntu-18.04,ubuntu-20.04,ubuntu-22.04,macos-11,windows-2019_x64,windows-2019_x86'
+        default: 'ubuntu-20.04,ubuntu-22.04,macos-11,windows-2019_x64,windows-2019_x86'
   pull_request:
     paths-ignore:
     - 'versions-manifest.json'
@@ -39,7 +39,7 @@ jobs:
       - name: Generate execution matrix
         id: generate-matrix
         run: |
-          [String[]]$configurations = "${{ inputs.platforms || 'ubuntu-18.04,ubuntu-20.04,ubuntu-22.04,macos-11,windows-2019_x64,windows-2019_x86' }}".Split(",").Trim()
+          [String[]]$configurations = "${{ inputs.platforms || 'ubuntu-20.04,ubuntu-22.04,macos-11,windows-2019_x64,windows-2019_x86' }}".Split(",").Trim()
           $matrix = @()
 
           foreach ($configuration in $configurations) {

.github/workflows/releases-validation.yml

@@ -14,8 +14,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
-        python: [3.5.4, 3.6.7, 3.7.5, 3.8.1]
+        os: [macos-latest, windows-latest, ubuntu-20.04, ubuntu-22.04]
+        python: [3.9.12, 3.10.8, 3.11.10]
     steps:
     - name: setup-python ${{ matrix.python }}
       uses: actions/setup-python@v4

.github/workflows/test-python-version.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04] 
+        os: [macos-latest, windows-latest, ubuntu-20.04, ubuntu-22.04] 
     steps:
     - name: Setup Python ${{ github.event.inputs.version }}
       uses: actions/setup-python@main

tests/ManifestConfig.Tests.ps1

@@ -5,16 +5,16 @@ $Configuration = Read-ConfigurationFile -Filepath $ConfigurationFile
 
 $stableTestCases = @(
     @{ ReleaseName = "python-3.8.3-darwin-x64.tar.gz"; ExpectedResult = @{ platform = "darwin"; platform_version = $null; arch = "x64"} },
-    @{ ReleaseName = "python-3.8.3-linux-18.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "18.04"; arch = "x64"} },
     @{ ReleaseName = "python-3.8.3-linux-20.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "20.04"; arch = "x64"} },
+    @{ ReleaseName = "python-3.8.3-linux-22.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "22.04"; arch = "x64"} },
     @{ ReleaseName = "python-3.8.3-win32-x64.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x64"} },
     @{ ReleaseName = "python-3.8.3-win32-x86.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x86"} }
 ) | ForEach-Object { $_.Configuration = $Configuration; $_ }
 
 $unstableTestCases = @(
     @{ ReleaseName = "python-3.9.0-alpha.2-darwin-x64.tar.gz"; ExpectedResult = @{ platform = "darwin"; platform_version = $null; arch = "x64"} },
-    @{ ReleaseName = "python-3.9.0-rc.4-linux-18.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "18.04"; arch = "x64"} },
     @{ ReleaseName = "python-3.9.0-beta.2-linux-20.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "20.04"; arch = "x64"} },
+    @{ ReleaseName = "python-3.9.0-rc.4-linux-22.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "22.04"; arch = "x64"} },
     @{ ReleaseName = "python-3.9.0-beta.2-win32-x64.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x64"} },
     @{ ReleaseName = "python-3.9.0-beta.2-win32-x86.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x86"} }
 ) | ForEach-Object { $_.Configuration = $Configuration; $_ }

tests/sources/python-modules.py

@@ -7,7 +7,6 @@ from __future__ import print_function
 
 import importlib
 import sys
-import platform
 
 # The Python standard library as of Python 3.0
 standard_library = [
@@ -266,11 +265,6 @@ if sys.version_info >= (3, 10):
 if sys.version_info >= (3, 11):
     standard_library.remove('binhex')
 
-# Exclude tkinter and turtle for Python 3.11 alpha temporarily
-if sys.version_info >= (3, 11) and platform.system() == 'Linux' and '18.04' in platform.version():
-    standard_library.remove('tkinter')
-    standard_library.remove('turtle')
-
 # 'smtpd', 'asyncore' and 'asynchat' modules have been removed from Python 3.12
 if sys.version_info >= (3, 12):
     standard_library.remove('smtpd')