Never create pyc files on filesystem

steps/python-2.0.1/patches/pyc.patch

@@ -0,0 +1,26 @@
+SPDX-FileCopyrightText: 2024 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: Python-2.0.1
+
+Disable creation of pyc files.
+
+--- Lib/py_compile.py	2024-01-22 11:28:00.291261389 +1100
++++ Lib/py_compile.py	2024-01-22 11:28:13.462600939 +1100
+@@ -41,6 +41,7 @@
+     directories).
+ 
+     """
++    return
+     import os, marshal, __builtin__
+     f = open(file)
+     try:
+--- Python/import.c	2024-01-22 12:23:34.349395727 +1100
++++ Python/import.c	2024-01-22 12:23:30.299285640 +1100
+@@ -672,6 +672,7 @@
+ static void
+ write_compiled_module(PyCodeObject *co, char *cpathname, long mtime)
+ {
++	return;
+ 	FILE *fp;
+ 
+ 	fp = open_exclusive(cpathname);

steps/python-2.3.7/patches/pyc.patch

@@ -0,0 +1,25 @@
+SPDX-FileCopyrightText: 2024 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: PSF-2.0
+
+Disable creation of pyc files.
+--- Lib/py_compile.py	2024-01-22 11:28:44.333395804 +1100
++++ Lib/py_compile.py	2024-01-22 11:28:53.703636809 +1100
+@@ -112,6 +112,7 @@
+     directories).
+ 
+     """
++    return
+     f = open(file, 'U')
+     try:
+         timestamp = long(os.fstat(f.fileno()).st_mtime)
+--- Python/import.c	2024-01-22 12:24:05.300236204 +1100
++++ Python/import.c	2024-01-22 12:24:36.513082356 +1100
+@@ -807,6 +807,7 @@
+ static void
+ write_compiled_module(PyCodeObject *co, char *cpathname, long mtime)
+ {
++	return;
+ 	FILE *fp;
+ 
+ 	fp = open_exclusive(cpathname);

steps/python-2.5.6/patches/pyc.patch

@@ -0,0 +1,26 @@
+SPDX-FileCopyrightText: 2024 fosslinux <fosslinux@aussies.space>
+
+SPDX-License-Identifier: PSF-2.0
+
+Disable creation of pyc files.
+
+--- Lib/py_compile.py	2024-01-22 11:28:44.333395804 +1100
++++ Lib/py_compile.py	2024-01-22 11:28:53.703636809 +1100
+@@ -112,6 +112,7 @@
+     directories).
+ 
+     """
++    return
+     f = open(file, 'U')
+     try:
+         timestamp = long(os.fstat(f.fileno()).st_mtime)
+--- Python/import.c	2024-01-22 12:24:59.390701654 +1100
++++ Python/import.c	2024-01-22 12:25:18.643222249 +1100
+@@ -869,6 +869,7 @@
+ static void
+ write_compiled_module(PyCodeObject *co, char *cpathname, time_t mtime)
+ {
++	return;
+ 	FILE *fp;
+ 
+ 	fp = open_exclusive(cpathname);

steps/python-3.1.5/pass2.sh

@@ -20,7 +20,7 @@ src_prepare() {
     mkdir Tools/unicode/in Tools/unicode/out
     mv ../CP437.TXT Tools/unicode/in/
     pushd Tools/unicode
-    python gencodec.py in/ ../../Lib/encodings/
+    python -B gencodec.py in/ ../../Lib/encodings/
     popd
 
     # Regenerate unicode
@@ -29,7 +29,7 @@ src_prepare() {
         mv "../${f}-3.2.0.txt" .
         mv "../${f}-5.1.0.txt" "${f}.txt"
     done
-    python Tools/unicode/makeunicodedata.py
+    python -B Tools/unicode/makeunicodedata.py
 
     # Regenerate sre_constants.h
     rm Modules/sre_constants.h
@@ -57,22 +57,22 @@ src_compile() {
     # Temporarily break include cycle
     patch -Np0 -i graminit-regen.patch
     # Build pgen
-    make "${MAKEJOBS}" Parser/pgen
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" Parser/pgen
     # Regen graminit.c and graminit.h
-    make "${MAKEJOBS}" Include/graminit.h
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" Include/graminit.h
 
     # Regenerate some Python scripts using the other regenerated files
     # Must move them out to avoid using Lib/ module files which are
     # incompatible with running version of Python
     cp Lib/{symbol,keyword,token}.py .
-    python symbol.py
+    python -B symbol.py
-    python keyword.py
+    python -B keyword.py
-    python token.py
+    python -B token.py
 
     # Undo change
     patch -Np0 -R -i graminit-regen.patch
     # Now build the main program
-    make "${MAKEJOBS}" CFLAGS="-U__DATE__ -U__TIME__"
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" CFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {

steps/python-3.11.1/pass1.sh

@@ -11,7 +11,7 @@ src_prepare() {
 
     # Regenerate ssl_data for ssl module
     rm Modules/_ssl_data_300.h Modules/_ssl_data.h
-    python Tools/ssl/make_ssl_data.py ../openssl-1.1.1l Modules/_ssl_data_111.h
+    python -B Tools/ssl/make_ssl_data.py ../openssl-1.1.1l Modules/_ssl_data_111.h
     sed -i 's#$(srcdir)/Modules/_ssl_data.h ##' Makefile.pre.in
     sed -i 's#$(srcdir)/Modules/_ssl_data_300.h ##' Makefile.pre.in
 
@@ -20,27 +20,27 @@ src_prepare() {
     mkdir Tools/unicode/in Tools/unicode/out
     mv ../CP437.TXT Tools/unicode/in/
     pushd Tools/unicode
-    python gencodec.py in/ ../../Lib/encodings/
+    python -B gencodec.py in/ ../../Lib/encodings/
     popd
 
     # Regenerate stringprep
     rm Lib/stringprep.py
     mv ../rfc3454.txt .
-    python Tools/unicode/mkstringprep.py > Lib/stringprep.py
+    python -B Tools/unicode/mkstringprep.py > Lib/stringprep.py
 
     # Regenerate unicode
     rm Modules/unicodedata_db.h Modules/unicodename_db.h Objects/unicodetype_db.h
     mkdir -p Tools/unicode/data
     mv ../*.txt ../*.zip Tools/unicode/data/
-    python Tools/unicode/makeunicodedata.py
+    python -B Tools/unicode/makeunicodedata.py
 
     # Regenerate Lib/re/_casefix.py
     rm Lib/re/_casefix.py
-    python Tools/scripts/generate_re_casefix.py Lib/re/_casefix.py
+    python -B Tools/scripts/generate_re_casefix.py Lib/re/_casefix.py
 
     # Regenerate Programs/test_frozenmain.h
     rm Programs/test_frozenmain.h
-    python Programs/freeze_test_frozenmain.py Programs/test_frozenmain.h
+    python -B Programs/freeze_test_frozenmain.py Programs/test_frozenmain.h
 
     # Create dummy Python/stdlib_module_names.h
     echo 'static const char* _Py_stdlib_module_names[] = {};' > Python/stdlib_module_names.h
@@ -69,7 +69,9 @@ src_compile() {
     # We have to choose the order ourselves because the Makefile is extremely lax about the order
     # First of all, do everything that doesn't use any C
     rm Modules/_blake2/blake2s_impl.c
-    make "${MAKEJOBS}" regen-opcode \
+    PYTHONDONTWRITEBYTECODE=1 \
+        make "${MAKEJOBS}" \
+        regen-opcode \
         regen-opcode-targets \
         regen-typeslots \
         regen-token \
@@ -82,17 +84,17 @@ src_compile() {
         regen-global-objects
 
     # Do the freeze regen process
-    make "${MAKEJOBS}" regen-frozen
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" regen-frozen
-    make "${MAKEJOBS}" regen-deepfreeze
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" regen-deepfreeze
-    make "${MAKEJOBS}" regen-global-objects
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" regen-global-objects
 
     make "${MAKEJOBS}" CPPFLAGS="-U__DATE__ -U__TIME__"
 
     # Regen Python/stdlib_module_names.h (you must have an existing build first)
-    make "${MAKEJOBS}" regen-stdlib-module-names
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" regen-stdlib-module-names
 
     # Now rebuild with proper stdlib_module_names.h
-    make "${MAKEJOBS}" CPPFLAGS="-U__DATE__ -U__TIME__"
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" CPPFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {

steps/python-3.3.7/pass1.sh

@@ -21,21 +21,21 @@ src_prepare() {
     mkdir Tools/unicode/in Tools/unicode/out
     mv ../CP437.TXT Tools/unicode/in/
     pushd Tools/unicode
-    python gencodec.py in/ ../../Lib/encodings/
+    python -B gencodec.py in/ ../../Lib/encodings/
     popd
 
     # Regenerate unicode
     rm Modules/unicodedata_db.h Modules/unicodename_db.h Objects/unicodetype_db.h
     mv ../*.txt ../*.zip .
-    python Tools/unicode/makeunicodedata.py
+    python -B Tools/unicode/makeunicodedata.py
 
     # Regenerate sre_constants.h
     rm Modules/sre_constants.h
     cp Lib/sre_constants.py .
-    python sre_constants.py
+    python -B sre_constants.py
 
     # Regenerate _ssl_data.h
-    python Tools/ssl/make_ssl_data.py /usr/include/openssl Modules/_ssl_data.h
+    python -B Tools/ssl/make_ssl_data.py /usr/include/openssl Modules/_ssl_data.h
 
     # Regenerate autoconf
     autoreconf-2.71 -fi
@@ -55,21 +55,21 @@ src_configure() {
 
 src_compile() {
     # Build pgen
-    make "${MAKEJOBS}" Parser/pgen
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" Parser/pgen
     # Regen graminit.c and graminit.h
-    make "${MAKEJOBS}" Include/graminit.h
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" Include/graminit.h
 
     # Regenerate some Python scripts using the other regenerated files
     # Must move them out to avoid using Lib/ module files which are
     # incompatible with running version of Python
     cp Lib/{symbol,keyword,token}.py .
     cp token.py _token.py
-    python symbol.py
+    python -B symbol.py
-    python keyword.py
+    python -B keyword.py
-    python token.py
+    python -B token.py
 
     # Now build the main program
-    make -j1 CFLAGS="-U__DATE__ -U__TIME__"
+    PYTHONDONTWRITEBYTECODE=1 make -j1 CFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {

steps/python-3.4.10/pass1.sh

@@ -21,23 +21,23 @@ src_prepare() {
     mkdir Tools/unicode/in Tools/unicode/out
     mv ../CP437.TXT Tools/unicode/in/
     pushd Tools/unicode
-    python gencodec.py in/ ../../Lib/encodings/
+    python -B gencodec.py in/ ../../Lib/encodings/
     popd
 
     # Regenerate clinic
     find . -name "*.c" -or -name "*.h" | \
         xargs grep 'clinic input' -l | \
-        xargs -L 1 python Tools/clinic/clinic.py
+        xargs -L 1 python -B Tools/clinic/clinic.py
 
     # Regenerate unicode
     rm Modules/unicodedata_db.h Modules/unicodename_db.h Objects/unicodetype_db.h
     mv ../*.txt ../*.zip .
-    python Tools/unicode/makeunicodedata.py
+    python -B Tools/unicode/makeunicodedata.py
 
     # Regenerate sre_constants.h
     rm Modules/sre_constants.h
     cp Lib/sre_constants.py .
-    python sre_constants.py
+    python -B sre_constants.py
     mv sre_constants.h Modules/
 
     # Regenerate autoconf
@@ -58,21 +58,21 @@ src_configure() {
 
 src_compile() {
     # Build pgen
-    make -j1 Parser/pgen
+    PYTHONDONTWRITEBYTECODE=1 make -j1 Parser/pgen
     # Regen graminit.c and graminit.h
-    make -j1 Include/graminit.h
+    PYTHONDONTWRITEBYTECODE=1 make -j1 Include/graminit.h
 
     # Regenerate some Python scripts using the other regenerated files
     # Must move them out to avoid using Lib/ module files which are
     # incompatible with running version of Python
     cp Lib/{symbol,keyword,token}.py .
     cp token.py _token.py
-    python symbol.py
+    python -B symbol.py
-    python keyword.py
+    python -B keyword.py
-    python token.py
+    python -B token.py
 
     # Now build the main program
-    make -j1 CFLAGS="-U__DATE__ -U__TIME__"
+    PYTHONDONTWRITEBYTECODE=1 make -j1 CFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {

steps/python-3.8.16/pass1.sh

@@ -15,24 +15,24 @@ src_prepare() {
     mkdir Tools/unicode/in Tools/unicode/out
     mv ../CP437.TXT Tools/unicode/in/
     pushd Tools/unicode
-    python gencodec.py in/ ../../Lib/encodings/
+    python -B gencodec.py in/ ../../Lib/encodings/
     popd
 
     # Regenerate unicode
     rm Modules/unicodedata_db.h Modules/unicodename_db.h Objects/unicodetype_db.h
     mv ../*.txt ../*.zip .
-    python Tools/unicode/makeunicodedata.py
+    python -B Tools/unicode/makeunicodedata.py
 
     # Regenerate sre_constants.h
     rm Modules/sre_constants.h
     cp Lib/sre_constants.py .
-    python sre_constants.py
+    python -B sre_constants.py
     rm sre_constants.py
     mv sre_constants.h Modules/
 
     # Regenerate stringprep
     rm Lib/stringprep.py
-    python Tools/unicode/mkstringprep.py > Lib/stringprep.py
+    python -B Tools/unicode/mkstringprep.py > Lib/stringprep.py
 
     # Regenerate autoconf
     autoreconf-2.71 -fi
@@ -42,6 +42,7 @@ src_configure() {
     MACHDEP=linux ac_sys_system=Linux \
     CPPFLAGS="-U__DATE__ -U__TIME__" \
     LDFLAGS="-L${LIBDIR}" \
+    PYTHON_FOR_BUILD="python -B" \
         ./configure \
         --build=i386-unknown-linux-musl \
         --host=i386-unknown-linux-musl \
@@ -53,9 +54,9 @@ src_configure() {
 src_compile() {
     # Regenerations
     rm Modules/_blake2/blake2s_impl.c
-    make "${MAKEJOBS}" regen-all
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" regen-all
 
-    make "${MAKEJOBS}" CPPFLAGS="-U__DATE__ -U__TIME__"
+    PYTHONDONTWRITEBYTECODE=1 make "${MAKEJOBS}" CPPFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {