Bug 1689501 [wpt PR 27379] - [python3] Remove Python 2 tasks from the CI, a=testonly

Automatic update from web-platform-tests
[python3] Bring py3-flake8.ini up-to-date with py27-flake8.ini

--
[taskcluster] Remove python2 tasks from Taskcluster CI

Step 3 of https://github.com/web-platform-tests/rfcs/blob/master/rfcs/py_3.md

--
[Azure Pipelines] Remove Python 2 from Azure Pipelines CI

Step 3 of https://github.com/web-platform-tests/rfcs/blob/master/rfcs/py_3.md

--
[python3] Update the bare minimum docs for dropping Py2 support

There are probably references still remaining to Python 2, but this
should remove the most egregious cases.

--

wpt-commits: a3e8c672b0f5c63f0023d0f69871785788f85c2d, 7abcd71cdc84a5d17047079a1daceb04edb2da3e, 6b197f497940666c041294367adf52eddb2faa25, cc214bb6cd8a525ea104c7311e9f2f3b0cb65fbd
wpt-pr: 27379

Author: stephenmcgruer

testing/web-platform/tests/.azure-pipelines.yml

@@ -117,24 +117,6 @@ jobs:
     displayName: 'Run tests (Safari Technology Preview)'
   - template: tools/ci/azure/publish_logs.yml
 
-- job: tools_unittest_mac
-  displayName: 'tools/ unittests: macOS'
-  dependsOn: decision
-  condition: dependencies.decision.outputs['test_jobs.tools_unittest']
-  pool:
-    vmImage: 'macOS-10.15'
-  variables:
-    HYPOTHESIS_PROFILE: ci
-  steps:
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '2.7.x'
-  - template: tools/ci/azure/checkout.yml
-  - template: tools/ci/azure/tox_pytest.yml
-    parameters:
-      directory: tools/
-      toxenv: py27
-
 - job: tools_unittest_mac_py36
   displayName: 'tools/ unittests: macOS + Python 3.6'
   dependsOn: decision
@@ -167,24 +149,6 @@ jobs:
       directory: tools/
       toxenv: py38
 
-- job: wptrunner_unittest_mac
-  displayName: 'tools/wptrunner/ unittests: macOS'
-  dependsOn: decision
-  condition: dependencies.decision.outputs['test_jobs.wptrunner_unittest']
-  pool:
-    vmImage: 'macOS-10.15'
-  variables:
-    HYPOTHESIS_PROFILE: ci
-  steps:
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '2.7.x'
-  - template: tools/ci/azure/checkout.yml
-  - template: tools/ci/azure/tox_pytest.yml
-    parameters:
-      directory: tools/wptrunner/
-      toxenv: py27
-
 - job: wptrunner_unittest_mac_py36
   displayName: 'tools/wptrunner/ unittests: macOS + Python 3.6'
   dependsOn: decision
@@ -217,32 +181,6 @@ jobs:
       directory: tools/wptrunner/
       toxenv: py38
 
-- job: wpt_integration_mac
-  displayName: 'tools/wpt/ tests: macOS'
-  dependsOn: decision
-  condition: dependencies.decision.outputs['test_jobs.wpt_integration']
-  pool:
-    vmImage: 'macOS-10.15'
-  variables:
-    HYPOTHESIS_PROFILE: ci
-  steps:
-  # full checkout required
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '2.7.x'
-  - template: tools/ci/azure/install_chrome.yml
-  - template: tools/ci/azure/install_firefox.yml
-  - template: tools/ci/azure/update_hosts.yml
-    parameters:
-      pyflag: --py2
-  - template: tools/ci/azure/update_manifest.yml
-    parameters:
-      pyflag: --py2
-  - template: tools/ci/azure/tox_pytest.yml
-    parameters:
-      directory: tools/wpt/
-      toxenv: py27
-
 - job: wpt_integration_mac_py36
   displayName: 'tools/wpt/ tests: macOS + Python 3.6'
   dependsOn: decision
@@ -283,24 +221,6 @@ jobs:
       directory: tools/wpt/
       toxenv: py38
 
-- job: tools_unittest_win
-  displayName: 'tools/ unittests: Windows'
-  dependsOn: decision
-  condition: dependencies.decision.outputs['test_jobs.tools_unittest']
-  pool:
-    vmImage: 'windows-2019'
-  variables:
-    HYPOTHESIS_PROFILE: ci
-  steps:
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '2.7.x'
-  - template: tools/ci/azure/checkout.yml
-  - template: tools/ci/azure/tox_pytest.yml
-    parameters:
-      directory: tools/
-      toxenv: py27
-
 - job: tools_unittest_win_py36
   displayName: 'tools/ unittests: Windows + Python 3.6'
   dependsOn: decision
@@ -337,24 +257,6 @@ jobs:
       directory: tools/
       toxenv: py38
 
-- job: wptrunner_unittest_win
-  displayName: 'tools/wptrunner/ unittests: Windows'
-  dependsOn: decision
-  condition: dependencies.decision.outputs['test_jobs.wptrunner_unittest']
-  pool:
-    vmImage: 'windows-2019'
-  variables:
-    HYPOTHESIS_PROFILE: ci
-  steps:
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '2.7.x'
-  - template: tools/ci/azure/checkout.yml
-  - template: tools/ci/azure/tox_pytest.yml
-    parameters:
-      directory: tools/wptrunner/
-      toxenv: py27
-
 - job: wptrunner_unittest_win_py36
   displayName: 'tools/wptrunner/ unittests: Windows + Python 3.6'
   dependsOn: decision
@@ -389,34 +291,6 @@ jobs:
       directory: tools/wptrunner/
       toxenv: py38
 
-- job: wpt_integration_win
-  displayName: 'tools/wpt/ tests: Windows'
-  dependsOn: decision
-  condition: dependencies.decision.outputs['test_jobs.wpt_integration']
-  pool:
-    vmImage: 'windows-2019'
-  variables:
-    HYPOTHESIS_PROFILE: ci
-  steps:
-  # full checkout required
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '2.7.x'
-  # currently just using the outdated Chrome/Firefox on the VM rather than
-  # figuring out how to install Chrome Dev channel on Windows
-  # - template: tools/ci/azure/install_chrome.yml
-  # - template: tools/ci/azure/install_firefox.yml
-  - template: tools/ci/azure/update_hosts.yml
-    parameters:
-      pyflag: --py2
-  - template: tools/ci/azure/update_manifest.yml
-    parameters:
-      pyflag: --py2
-  - template: tools/ci/azure/tox_pytest.yml
-    parameters:
-      directory: tools/wpt/
-      toxenv: py27
-
 - job: wpt_integration_win_py36
   displayName: 'tools/wpt/ tests: Windows + Python 3.6'
   dependsOn: decision

testing/web-platform/tests/docs/running-tests/from-local-system.md

@@ -7,8 +7,7 @@ The tests are designed to be run from your local computer.
 Running the tests requires `python`, `pip` and `virtualenv`, as well as updating
 the system `hosts` file.
 
-Python 3 is supported and preferred, but for now it is still possible to use
-Python 2.7 if necessary.
+WPT requires Python 3.6 or higher.
 
 The required setup is different depending on your operating system.
 
@@ -45,10 +44,10 @@ See also [additional setup required to run Safari](safari.md).
 
 ### Windows Setup
 
-Download and install [Python 2.7](https://www.python.org/downloads). The
+Download and install [Python 3](https://www.python.org/downloads). The
 installer includes `pip` by default.
 
-Add `C:\Python27` and `C:\Python27\Scripts` to your `%Path%`
+Add `C:\Python39` and `C:\Python39\Scripts` to your `%Path%`
 [environment variable](http://www.computerhope.com/issues/ch000549.htm).
 
 Finally, install `virtualenv`:

testing/web-platform/tests/docs/writing-tests/h2tests.md

@@ -1,7 +1,7 @@
 # Writing H2 Tests
 
-> <b>Important:</b> The HTTP/2.0 server requires you to have Python 2.7.10+
-and OpenSSL 1.0.2+. This is because HTTP/2.0 is negotiated using the
+> <b>Important:</b> The HTTP/2.0 server requires you to have
+OpenSSL 1.0.2+. This is because HTTP/2.0 is negotiated using the
 [TLS ALPN](https://tools.ietf.org/html/rfc7301) extension, which is only supported in [OpenSSL 1.0.2](https://www.openssl.org/news/openssl-1.0.2-notes.html) and up.
 
 These instructions assume you are already familiar with the testing
@@ -153,4 +153,4 @@ the HEADER and CONTINUATION frames are constructed in the same way.
 Ends the stream with the given ID, or the one that request was made on if no ID given.
 
 - <b>Parameters</b>
-    - <b>stream_id</b>: Id of stream to send frame on. Will use the request stream ID if None
+    - <b>stream_id</b>: Id of stream to send frame on. Will use the request stream ID if None

testing/web-platform/tests/docs/writing-tests/lint-tool.md

@@ -61,7 +61,7 @@ TRAILING WHITESPACE:example/*
 
 Similarly, you can also
 use
-[shell-style wildcards](https://docs.python.org/2/library/fnmatch.html) to
+[shell-style wildcards](https://docs.python.org/library/fnmatch.html) to
 express other filename patterns or directory-name patterns.
 
 Finally, to ignore just one line in a file, use the following format:

testing/web-platform/tests/docs/writing-tests/python-handlers/index.md

@@ -81,21 +81,6 @@ css/css-align/resources/__init__.py
 This requirement will be removed once we move to Python 3, due to
 [PEP 420](https://www.python.org/dev/peps/pep-0420/).
 
-### Python3 compatibility
-
-Even though Python3 is not fully supported at this point, some work is being
-done to add compatibility for it. This is why you can see in multiple places
-the use of the `six` python module which is meant to provide a set of simple
-utilities that work for both generation of python (see
-[docs](https://six.readthedocs.io/)). The module is vendored in
-tools/third_party/six/six.py.
-
-When an handler is added, it should be at least syntax-compatible with Python3.
-You can check that by running:
-```
-python3 -m py_compile <path/to/handler.py>
-```
-
 ## Example: Dynamic HTTP headers
 
 The following code defines a Python handler that allows the requester to

testing/web-platform/tests/docs/writing-tests/server-features.md

@@ -127,8 +127,8 @@ by default and needs to be run using `./wpt serve --h2` in order to enable it.
 The HTTP/2.0 server supports handlers that work per-frame; these, along with the
 API are documented in [Writing H2 Tests](h2tests).
 
-> <b>Important:</b> The HTTP/2.0 server requires you to have Python 2.7.10+
-and OpenSSL 1.0.2+. This is because HTTP/2.0 is negotiated using the
+> <b>Important:</b> The HTTP/2.0 server requires you to have
+OpenSSL 1.0.2+. This is because HTTP/2.0 is negotiated using the
 [TLS ALPN](https://tools.ietf.org/html/rfc7301) extension, which is only
 supported in
 [OpenSSL 1.0.2](https://www.openssl.org/news/openssl-1.0.2-notes.html) and up.

testing/web-platform/tests/tools/ci/azure/update_hosts.yml

@@ -1,13 +1,10 @@
-parameters:
-  pyflag: --py3
-
 steps:
 - script: ./wpt make-hosts-file | sudo tee -a /etc/hosts
   displayName: 'Update hosts (macOS)'
   condition: and(succeeded(), eq(variables['Agent.OS'], 'Darwin'))
 - powershell: |
     $hostFile = "$env:systemroot\System32\drivers\etc\hosts"
     Copy-Item -Path $hostFile -Destination "$hostFile.back" -Force
-    python wpt ${{ parameters.pyflag }} make-hosts-file | Out-File $env:systemroot\System32\drivers\etc\hosts -Encoding ascii -Append
+    python wpt make-hosts-file | Out-File $env:systemroot\System32\drivers\etc\hosts -Encoding ascii -Append
   displayName: 'Update hosts (Windows)'
   condition: and(succeeded(), eq(variables['Agent.OS'], 'Windows_NT'))

testing/web-platform/tests/tools/ci/azure/update_manifest.yml

@@ -1,7 +1,4 @@
-parameters:
-  pyflag: --py3
-
 steps:
 # `python wpt` instead of `./wpt` is to make this work on Windows:
-- script: python wpt ${{ parameters.pyflag }} manifest
+- script: python wpt manifest
   displayName: 'Update manifest'

testing/web-platform/tests/tools/ci/tc/tasks/test.yml

@@ -105,11 +105,6 @@ components:
 
   browser-servo: {}
 
-  tox-python2:
-    env:
-      TOXENV: py27
-      PY_COLORS: 0
-
   tox-python3:
     env:
       TOXENV: py36
@@ -402,20 +397,6 @@ tasks:
           - update_built
       command: "./tools/ci/ci_built_diff.sh"
 
-  - tools/ unittests (Python 2):
-      use:
-        - wpt-base
-        - trigger-pr
-        - tox-python2
-      description: >-
-        Unit tests for tools running under Python 2.7, excluding wptrunner
-      command: ./tools/ci/ci_tools_unittest.sh
-      env:
-        HYPOTHESIS_PROFILE: ci
-      schedule-if:
-        run-job:
-          - tools_unittest
-
   - tools/ unittests (Python 3.6):
       description: >-
         Unit tests for tools running under Python 3.6, excluding wptrunner
@@ -447,28 +428,6 @@ tasks:
         run-job:
           - tools_unittest
 
-  - tools/ integration tests (Python 2):
-      description: >-
-        Integration tests for tools running under Python 2.7
-      use:
-        - wpt-base
-        - trigger-pr
-        - tox-python2
-      command: ./tools/ci/ci_tools_integration_test.sh
-      install:
-        - libnss3-tools
-      options:
-        oom-killer: true
-        browser:
-          - firefox
-          - chrome
-        channel: experimental
-        xvfb: true
-        hosts: true
-      schedule-if:
-        run-job:
-          - wpt_integration
-
   - tools/ integration tests (Python 3.6):
       description: >-
         Integration tests for tools running under Python 3.6
@@ -515,23 +474,6 @@ tasks:
         run-job:
           - wpt_integration
 
-  - resources/ tests (Python 2):
-      description: >-
-        Tests for testharness.js and other files in resources/ under Python 2.7
-      use:
-        - wpt-base
-        - trigger-pr
-        - tox-python2
-      command: ./tools/ci/ci_resources_unittest.sh
-      options:
-        browser:
-          - firefox
-        xvfb: true
-        hosts: true
-      schedule-if:
-        run-job:
-          - resources_unittest
-  
   - resources/ tests (Python 3.6):
       description: >-
         Tests for testharness.js and other files in resources/ under Python 3.6
@@ -572,32 +514,6 @@ tasks:
         run-job:
           - resources_unittest
 
-  - infrastructure/ tests:
-      description: >-
-        Smoketests for wptrunner
-      vars:
-        channel: nightly
-      use:
-        - wpt-base
-        - trigger-pr
-        - browser-firefox
-      command: ./tools/ci/ci_wptrunner_infrastructure.sh --py2
-      install:
-        - libnss3-tools
-        - libappindicator1
-        - fonts-liberation
-      options:
-        oom-killer: true
-        browser:
-          - firefox
-          - chrome
-        channel: experimental
-        xvfb: true
-        hosts: false
-      schedule-if:
-        run-job:
-          - wptrunner_infrastructure
-
   - infrastructure/ tests (Python 3):
       description: >-
         Smoketests for wptrunner