[tools] Remove support for python2

Closes #10491

We re-add the header in doc/tools/coqrst/notations/fontsupport.py
which was removed by accident in 1a9c769ed363ee2f2784e7252af72e6c1e2fbcc6

The fontsupport script itself has been kept for reference, however it
is not involved by any build target as of today.

5 files changed, 12 insertions, 14 deletions

diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 31dcae0f82..aba2b05037 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -19,7 +19,7 @@ jobs:
       powershell -Command "(New-Object Net.WebClient).DownloadFile('http://www.cygwin.com/setup-x86_64.exe', 'setup-x86_64.exe')"
       SET CYGROOT=C:\cygwin64
       SET CYGCACHE=%CYGROOT%\var\cache\setup
-      setup-x86_64.exe -qnNdO -R %CYGROOT% -l %CYGCACHE% -s %CYGMIRROR% -P rsync -P patch -P diffutils -P make -P unzip -P m4 -P findutils -P time -P wget -P curl -P git -P mingw64-x86_64-binutils,mingw64-x86_64-gcc-core,mingw64-x86_64-gcc-g++,mingw64-x86_64-pkg-config,mingw64-x86_64-windows_default_manifest -P mingw64-x86_64-headers,mingw64-x86_64-runtime,mingw64-x86_64-pthreads,mingw64-x86_64-zlib -P python2 -P python3
+      setup-x86_64.exe -qnNdO -R %CYGROOT% -l %CYGCACHE% -s %CYGMIRROR% -P rsync -P patch -P diffutils -P make -P unzip -P m4 -P findutils -P time -P wget -P curl -P git -P mingw64-x86_64-binutils,mingw64-x86_64-gcc-core,mingw64-x86_64-gcc-g++,mingw64-x86_64-pkg-config,mingw64-x86_64-windows_default_manifest -P mingw64-x86_64-headers,mingw64-x86_64-runtime,mingw64-x86_64-pthreads,mingw64-x86_64-zlib -P python3
 
       SET TARGET_ARCH=x86_64-w64-mingw32
       SET CD_MFMT=%cd:\=/%
diff --git a/default.nix b/default.nix
index ee4a6046ea..cfadca54d2 100644
--- a/default.nix
+++ b/default.nix
@@ -41,7 +41,6 @@ stdenv.mkDerivation rec {
 
   buildInputs = [
     hostname
-    python2 # update-compat.py
     python3 time # coq-makefile timing tools
     dune
   ]
diff --git a/doc/changelog/11-infrastructure-and-dependencies/11245-bye+py2.rst b/doc/changelog/11-infrastructure-and-dependencies/11245-bye+py2.rst
new file mode 100644
index 0000000000..03c2ccc1d2
--- /dev/null
+++ b/doc/changelog/11-infrastructure-and-dependencies/11245-bye+py2.rst
@@ -0,0 +1,4 @@
+- **Removed:**
+  Python 2 is not longer required in any part of the codebase.
+  (`#11245 <https://github.com/coq/coq/pull/11245>`_,
+  by Emilio Jesus Gallego Arias).
diff --git a/doc/tools/coqrst/notations/fontsupport.py b/doc/tools/coqrst/notations/fontsupport.py
index f0df7f1c01..c3ba2c1301 100755
--- a/doc/tools/coqrst/notations/fontsupport.py
+++ b/doc/tools/coqrst/notations/fontsupport.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python2
+# -*- coding: utf-8 -*-
 ##########################################################################
 ##         #   The Coq Proof Assistant / The Coq Development Team       ##
 ##  v      #   INRIA, CNRS and contributors - Copyright 1999-2019       ##
diff --git a/test-suite/coq-makefile/timing/precomputed-time-tests/003-non-utf8/run.sh b/test-suite/coq-makefile/timing/precomputed-time-tests/003-non-utf8/run.sh
index e1f17725dc..13e484b852 100755
--- a/test-suite/coq-makefile/timing/precomputed-time-tests/003-non-utf8/run.sh
+++ b/test-suite/coq-makefile/timing/precomputed-time-tests/003-non-utf8/run.sh
@@ -5,20 +5,14 @@ set -e
 
 cd "$(dirname "${BASH_SOURCE[0]}")"
 
-python2 "$COQLIB"/tools/make-one-time-file.py time-of-build.log.in time-of-build-pretty.log2 || exit $?
-python3 "$COQLIB"/tools/make-one-time-file.py time-of-build.log.in time-of-build-pretty.log3 || exit $?
+"$COQLIB"/tools/make-one-time-file.py time-of-build.log.in time-of-build-pretty.log || exit $?
 
-diff -u time-of-build-pretty.log.expected time-of-build-pretty.log2 || exit $?
-diff -u time-of-build-pretty.log.expected time-of-build-pretty.log3 || exit $?
+diff -u time-of-build-pretty.log.expected time-of-build-pretty.log || exit $?
 
-cat time-of-build.log.in | python2 "$COQLIB"/tools/make-one-time-file.py - time-of-build-pretty.log2 || exit $?
-cat time-of-build.log.in | python3 "$COQLIB"/tools/make-one-time-file.py - time-of-build-pretty.log3 || exit $?
+cat time-of-build.log.in | "$COQLIB"/tools/make-one-time-file.py - time-of-build-pretty.log || exit $?
 
-diff -u time-of-build-pretty.log.expected time-of-build-pretty.log2 || exit $?
-diff -u time-of-build-pretty.log.expected time-of-build-pretty.log3 || exit $?
+diff -u time-of-build-pretty.log.expected time-of-build-pretty.log || exit $?
 
-(python2 "$COQLIB"/tools/make-one-time-file.py time-of-build.log.in - || exit $?) > time-of-build-pretty.log2
-(python3 "$COQLIB"/tools/make-one-time-file.py time-of-build.log.in - || exit $?) > time-of-build-pretty.log3
+("$COQLIB"/tools/make-one-time-file.py time-of-build.log.in - || exit $?) > time-of-build-pretty.log
 
-diff -u time-of-build-pretty.log.expected time-of-build-pretty.log2 || exit $?
-diff -u time-of-build-pretty.log.expected time-of-build-pretty.log3 || exit $?
+diff -u time-of-build-pretty.log.expected time-of-build-pretty.log || exit $?