add python 3.14, remove python 3.9

Dockerfile

@@ -47,13 +47,12 @@ RUN : \
     && apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
         pypy3-dev \
-        python3.9-dev \
-        python3.9-distutils \
         python3.10-dev \
         python3.10-distutils \
         python3.11-dev \
         python3.11-distutils \
         python3.13-dev \
+        python3.14-dev \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* \
     && :
@@ -74,7 +73,7 @@ ENV \
     XDG_DATA_HOME=/tmp/data
 COPY requirements.txt /tmp/requirements.txt
 RUN : \
-    && curl --silent --location --output /tmp/virtualenv.pyz https://bootstrap.pypa.io/virtualenv/3.9/virtualenv.pyz \
+    && curl --silent --location --output /tmp/virtualenv.pyz https://bootstrap.pypa.io/virtualenv/3.10/virtualenv.pyz \
     && python3.12 /tmp/virtualenv.pyz /venv \
     && pip install --requirement /tmp/requirements.txt \
     && rm -rf "$XDG_DATA_HOME" /tmp/virtualenv.pyz \

bin/_info

@@ -47,14 +47,14 @@ def main() -> int:
     print('others')
     print()
     with _console():
-        _call('python3.9', '--version', '--version')
-        print()
         _call('python3.10', '--version', '--version')
         print()
         _call('python3.11', '--version', '--version')
         print()
         _call('python3.13', '--version', '--version')
         print()
+        _call('python3.14', '--version', '--version')
+        print()
         _call('pypy3', '--version', '--version')
     print()
 

build/seed-virtualenv-cache

@@ -27,7 +27,8 @@ def main() -> int:
         subprocess.check_call(('virtualenv', '/tmp/v', '-p', python))
         shutil.rmtree('/tmp/v')
     # additionally seed the `python3 -m` executable
-    subprocess.check_call(('python3', '-mvirtualenv', '/tmp/v', '-ppython3.9'))
+    cmd = ('python3', '-mvirtualenv', '/tmp/v', '-ppython3.10')
+    subprocess.check_call(cmd)
     shutil.rmtree('/tmp/v')
     return 0