Use Python 3.12

Multithreading causes errors in Font Bakery in Python 3.12, so it has
been disabled. Even so, the new version of Python is faster enough that
`make -j check` is actually slightly faster than it was before.

.github/workflows/main.yml

@@ -28,10 +28,10 @@ permissions:
   contents: read
 env:
   FONTFORGE_COMMIT: aa062f4cbd1db21e27b2620f16993ebe4c540ab6
-  PYTHON_VERSION: 3.11
+  PYTHON_VERSION: 3.12
 jobs:
   main:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
         include:
@@ -124,11 +124,14 @@ jobs:
           sudo apt-get -qy --no-install-recommends install \
             build-essential \
             cmake \
+            libfreetype6-dev \
+            libglib2.0-dev \
             ninja-build \
             packaging-dev \
             pkg-config \
             python${{ env.PYTHON_VERSION }}-dev \
           ;
+          pip install $(grep '^setuptools==' dev-requirements.txt)
           curl -Lo fontforge.zip https://github.com/fontforge/fontforge/archive/${{ env.FONTFORGE_COMMIT }}.zip
           unzip fontforge.zip
           mv fontforge-${{ env.FONTFORGE_COMMIT }} fontforge

Makefile

@@ -169,7 +169,7 @@ endif
 
 .PHONY: $(addprefix fontbakery-,$(SUFFIXES))
 $(addprefix fontbakery-,$(SUFFIXES)): fontbakery-%: %
-	fontbakery check-notofonts --auto-jobs --configuration <($(UNIFDEF) tests/fontbakery-config.toml) --full-lists --skip-network $(filter %.$*,$(FONTS))
+	fontbakery check-notofonts --configuration <($(UNIFDEF) tests/fontbakery-config.toml) --full-lists --skip-network $(filter %.$*,$(FONTS))
 
 .PHONY: fontbakery
 fontbakery: $(addprefix fontbakery-,$(SUFFIXES))

dev-constraints.txt

@@ -22,21 +22,22 @@ fs >= 2.4.16
 GitPython >= 3.0.6
 importlib-resources >= 2  # https://github.com/googlefonts/nam-files/commit/6d12b577cb778f178e9653b7b89c40b182c44a7a
 Jinja2 >= 3a0  # https://github.com/fonttools/fontbakery/issues/4717
-lxml >= 4.9.1
-munkres >= 1.0.6  # https://github.com/bmc/munkres/pull/2
-numpy >= 1.22
-openstep-plist != 0.3  # https://github.com/fonttools/openstep-plist/issues/16
+lxml >= 4.9.3
+munkres >= 1.0.10  # https://github.com/bmc/munkres/issues/21
+numpy >= 1.26
+openstep-plist >= 0.3.1
 orjson >= 3.6.3
 packaging >= 14.5  # https://github.com/fonttools/fontbakery/issues/4792
+pip >= 23.1.2  # https://github.com/pypa/pip/commit/f1a7a6f942b869ae3428dbf55dfc1ca756c78d94
 protobuf >= 3.12.2
-pyclipper >= 1.3.post3
+pyclipper >= 1.3.post5
 pytz >= 2014.9
-pyyaml >= 6
-requests >= 2.19  # https://github.com/fonttools/fontbakery/issues/4718
+pyyaml >= 6.0.1  # https://github.com/yaml/pyyaml/issues/601
+requests >= 2.25  # https://github.com/psf/requests/commit/03957eb1c2b9a1e5e6d61f5e930d7c5ed7cfe853#diff-60f61ab7a8d1910d86d9fda2261620314edcae5894d5aaa236b821c7256badd7R47
 rich >= 13.2  # https://github.com/Textualize/rich/commit/6aac8da6984482ad767c06dd592ffa019a0b5318#diff-a008d33d5743c15fbc11efc91f15d4d66e6751eac937baa1fc4467e563157f0dR411
 rstr >= 2.2
 ruamel-yaml >= 0.2
-setuptools >= 41.1  # https://github.com/pypa/setuptools/pull/1788
+setuptools >= 66.1  # https://github.com/pypa/setuptools/pull/3685
 sre-yield >= 1.1
 toml >= 0.9.1  # https://github.com/uiri/toml/commit/c54810e73feb55167cb7ec327b6568fa21d43669
-urllib3 >= 1.23  # https://github.com/urllib3/urllib3/pull/1325
+urllib3 >= 1.26.5  # Avoid “No module named 'urllib3.packages.six.moves'” error

dev-requirements.txt

@@ -104,7 +104,7 @@ fs==2.4.16
     #   -c dev-constraints.txt
     #   fontfeatures
     #   fonttools
-gflanguages==0.6.4
+gflanguages==0.6.5
     # via
     #   fontbakery
     #   glyphsets
@@ -138,7 +138,7 @@ lxml==5.3.0
     #   fonttools
 markdown-it-py==3.0.0
     # via rich
-markupsafe==3.0.1
+markupsafe==3.0.2
     # via jinja2
 mdurl==0.1.2
     # via markdown-it-py
@@ -152,7 +152,7 @@ mypy-extensions==1.0.0
     # via mypy
 num2words==0.5.13
     # via shaperglot
-openstep-plist==0.3.1
+openstep-plist==0.4.0
     # via
     #   -c dev-constraints.txt
     #   babelfont
@@ -161,7 +161,7 @@ opentype-sanitizer==9.1.0
     # via fontbakery
 opentypespec==1.9.1
     # via fontbakery
-orjson==3.10.7
+orjson==3.10.9
     # via
     #   -c dev-constraints.txt
     #   babelfont
@@ -170,7 +170,9 @@ packaging==24.1
     #   -c dev-constraints.txt
     #   fontbakery
 pip==24.2
-    # via pip-api
+    # via
+    #   -c dev-constraints.txt
+    #   pip-api
 pip-api==0.0.34
     # via fontbakery
 protobuf==3.20.3
@@ -180,7 +182,7 @@ protobuf==3.20.3
     #   fontbakery
     #   gflanguages
     #   shaperglot
-pyclipper==1.3.0.post5
+pyclipper==1.3.0.post6
     # via
     #   -c dev-constraints.txt
     #   beziers
@@ -211,9 +213,9 @@ rstr==3.2.2
     # via
     #   -c dev-constraints.txt
     #   stringbrewer
-ruff==0.6.4
+ruff==0.6.9
     # via -r dev-requirements.in
-setuptools==75.1.0
+setuptools==75.2.0
     # via
     #   -c dev-constraints.txt
     #   fs
@@ -224,7 +226,7 @@ six==1.16.0
     # via
     #   fs
     #   python-dateutil
-skia-pathops==0.8.0.post1
+skia-pathops==0.8.0.post2
     # via collidoscope
 soupsieve==2.6
     # via beautifulsoup4
@@ -246,7 +248,6 @@ tqdm==4.66.5
     # via collidoscope
 typing-extensions==4.12.2
     # via
-    #   -r requirements.in
     #   mypy
     #   vfblib
 ufo2ft==3.3.1
@@ -278,7 +279,7 @@ urllib3==2.2.3
     # via
     #   -c dev-constraints.txt
     #   requests
-uv==0.4.21
+uv==0.4.24
     # via -r dev-requirements.in
 vfblib==0.7.1
     # via babelfont

docs/developer-documentation.md

@@ -22,7 +22,7 @@ limitations under the License.
 The prerequisites are:
 
 * GNU Make
-* Python 3.11 or later
+* Python 3.12 or later
 * FontForge 20190801 with Python 3 extensions
 * unifdef
 

pyproject.toml

@@ -81,7 +81,7 @@ disallow_untyped_defs = false
 
 [tool.ruff]
 src = [".", "sources"]
-target-version = "py311"
+target-version = "py312"
 
 [tool.ruff.lint]
 allowed-confusables = [

requirements.in

@@ -16,5 +16,4 @@
 cffsubr >= 0.3, < 0.3.1
 fonttools[repacker] >= 4.39.4, < 5
 gfsubsets >= 2024.9.25
-typing_extensions ~= 4.4
-uharfbuzz >= 0.31, < 0.37.3  # https://github.com/harfbuzz/harfbuzz/pull/4385#issuecomment-1692191895
+uharfbuzz >= 0.37.1, < 0.37.3  # https://github.com/harfbuzz/uharfbuzz/pull/165 https://github.com/harfbuzz/harfbuzz/pull/4385#issuecomment-1692191895

requirements.txt

@@ -25,8 +25,6 @@ gfsubsets==2024.9.25
     # via -r requirements.in
 importlib-resources==6.4.5
     # via gfsubsets
-typing-extensions==4.12.2
-    # via -r requirements.in
 uharfbuzz==0.37.2
     # via
     #   -r requirements.in

sources/copy_metrics.py

@@ -29,7 +29,7 @@
     from _typeshed import StrOrBytesPath
 
 
-def cast_cff_number(number: float | int) -> float | int:  # noqa: PYI041
+def cast_cff_number(number: float) -> float:
     """Losslessly casts a number to the data type in which it uses the
     fewest bytes in CFF.
 
@@ -41,7 +41,7 @@ def cast_cff_number(number: float | int) -> float | int:  # noqa: PYI041
         `number` as either a `float` or an `int`, whichever uses the
         fewest bytes in CFF.
     """
-    if isinstance(number, float) and not number.is_integer():
+    if not number.is_integer():
         return number
     f = float(number)
     if not (-2 ** 31 <= number <= 2 ** 31 - 1):

sources/phases/__init__.py

@@ -94,10 +94,10 @@
 from typing import TypeVar
 from typing import cast
 from typing import overload
+from typing import override
 
 import fontTools.feaLib.ast
 import fontTools.otlLib.builder
-from typing_extensions import override
 
 import schema
 from utils import GlyphClass

sources/schema.py

@@ -27,11 +27,11 @@
 from typing import Self
 from typing import TYPE_CHECKING
 from typing import cast
+from typing import override
 import unicodedata
 
 import fontTools.agl
 import fontTools.merge.unicode
-from typing_extensions import override
 
 import anchors
 from shapes import AnchorWidthDigit

sources/shapes.py

@@ -33,10 +33,10 @@
 from typing import TYPE_CHECKING
 from typing import TypeVar
 from typing import cast
+from typing import override
 
 import fontTools.misc.transform
 import fontforge
-from typing_extensions import override
 
 import anchors
 from utils import CAP_HEIGHT

sources/utils.py

@@ -29,9 +29,9 @@
 from typing import TYPE_CHECKING
 from typing import TypeVar
 from typing import overload
+from typing import override
 
 import fontTools.subset
-from typing_extensions import override
 import uharfbuzz