Add support for Python 3.12 (#1782)

* Add support for Python 3.12

* Add colour to test logs for readability

* Remove redundant code for Python <= 3.6

* Fix Black warning

Author: hugovk

.github/workflows/test.yaml

@@ -5,19 +5,24 @@ on:
   pull_request:
     branches: [master]
 
+env:
+  FORCE_COLOR: 1
+
 jobs:
   test-ubuntu:
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Setup Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Install Dependencies
         run: |
           sudo apt remove python3-pip

setup.py

@@ -44,6 +44,8 @@ def get_version(package):
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: 3 :: Only",
         "Programming Language :: Python",
         "Topic :: Software Development",

src/prompt_toolkit/application/application.py

@@ -1005,7 +1005,7 @@ def _enable_breakpointhook(self) -> Generator[None, None, None]:
         manager. (We will only install the hook if no other custom hook was
         set.)
         """
-        if sys.version_info >= (3, 7) and sys.breakpointhook == sys.__breakpointhook__:
+        if sys.breakpointhook == sys.__breakpointhook__:
             sys.breakpointhook = self._breakpointhook
 
             try:

src/prompt_toolkit/application/current.py

@@ -144,10 +144,8 @@ def create_app_session(
     Create a separate AppSession.
 
     This is useful if there can be multiple individual `AppSession`s going on.
-    Like in the case of an Telnet/SSH server. This functionality uses
-    contextvars and requires at least Python 3.7.
+    Like in the case of an Telnet/SSH server.
     """
-
     # If no input/output is specified, fall back to the current input/output,
     # whatever that is.
     if input is None:

tests/test_cli.py

@@ -190,7 +190,7 @@ def test_emacs_cursor_movements():
 def test_emacs_kill_multiple_words_and_paste():
     # Using control-w twice should place both words on the clipboard.
     result, cli = _feed_cli_with_input(
-        "hello world test" "\x17\x17" "--\x19\x19\r"  # Twice c-w.  # Twice c-y.
+        "hello world test\x17\x17--\x19\x19\r"  # Twice c-w.  Twice c-y.
     )
     assert result.text == "hello --world testworld test"
     assert cli.clipboard.get_data().text == "world test"

tox.ini

@@ -4,10 +4,10 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py26, py27, py33, py34, py35, pypy, pypy3
+envlist = py{37, 38, 39, 310, 311, 312, py3}
 
 [testenv]
-commands = py.test []
+commands = pytest []
 
 deps=
     pytest