Jason's Home Page - Linux HOWTOs

python-3.9 - High-level, object-oriented, interpreted programming language ChangeLog

Web site:	https://www.python.org/downloads/release/python-3921/
Repository:	https://github.com/python/cpython
Wikipedia:	https://en.wikipedia.org/wiki/Python_(programming_language)

HOWTO

# Python 3.9.21 (released 2024-12-03)
# =============
# See the main Python HOWTO for general information and then continue here
# for information specific to 3.9.x releases

# Prerequisites:
# OpenSSL (for Python's socket module)
# pkg-config
# Tcl/Tk (for _tkinter)

# If you're about to upgrade from 3.8.x to 3.9.x, read this:
# What's New In Python 3.9
# for info about changes between the two versions.  For more info read
# Misc/NEWS.

# Python 3.13.1, 3.12.8, 3.11.11, 3.10.16 and 3.9.21 are now available
# Python 3.9.21 Release Notes
# Python 3.9.21 Changelog
# PEP 596 - Python 3.9 Release Schedule
# Download Python (includes PGP key info)
# Python Source Releases
# Python Developer's Guide: Setup and building
# Python Documentation
# Python Mailing Lists
# Python Wiki
# PyPI (Python Package Index)

# Get the source tarball
cd
test -f installed/Python-3.9.21.tar.xz && mv installed/Python-3.9.21.tar.xz .
test ! -f Python-3.9.21.tar.xz &&
wget https://www.python.org/ftp/python/3.9.21/Python-3.9.21.tar.xz

# Verify tarball w/ md5sum:
# (from the Python site)
echo "e8ab0f9a295f12428310f409abd79e9c  Python-3.9.21.tar.xz" | md5sum -c

# Verify tarball w/ sha256sum:
# (this came from my md5sum and gpg-verified tarball)
echo "3126f59592c9b0d798584755f2bf7b081fa1ca35ce7a6fea980108d752a05b\
b1  Python-3.9.21.tar.xz" | sha256sum -c

# Verify tarball w/ gpg:
( gpg --list-keys B26995E310250568 > /dev/null 2>&1 ||
  gpg --recv-keys B26995E310250568 ) &&
wget -nc http://www.python.org/ftp/python/3.9.21/\
Python-3.9.21.tar.xz.asc &&
  gpg --verify Python-3.9.21.tar.xz.asc && rm Python-3.9.21.tar.xz.asc

# Extract it
mkdir -p -m 0700 ~/src
cd ~/src
find -maxdepth 1 -type d -name "Python-3.*" -exec rm -r {} \;
tar xJvf ~/Python-3.9.21.tar.xz
cd Python-3.9.21
test $UID = 0 && chown -R root:root .

# I used to apply a patch to change various things from /lib/ to /lib64/
# which configure's --libdir was not handling.  Now there is a
# --with-platlibdir=lib64 that will help that, but even with that, you
# will still end up with a /usr/lib/python3.9/site-packages/

## Configure the build

# If you somehow don't need pip, leave off --with-ensurepip=install
# You could just install it later, but every way I tried to do it a while
# back with 2.x, I'd get stuck with a dependency loop between the get-pip.py
# script needing urllib3, not having it, that requires something else, ...

# If you want to enable optimizations, use ... --enable-optimizations

# If you have source-installed OpenSSL < 1.1.0 with the default prefix of
# /usr/local/ssl and are 64-bit, you may need to use this at the beginning of
# configure:
# LDFLAGS=-L/usr/local/ssl/lib64

# If you are 64-bit:
test $(uname -m) = 'x86_64' &&
./configure --prefix=/usr --libdir=/usr/lib64 --mandir=/usr/man \
--enable-shared --with-platlibdir=lib64 --with-ensurepip=install

# If you are not 64-bit, no need to add anything for /usr/lib:
test $(uname -m) != 'x86_64' &&
./configure --prefix=/usr --enable-shared --mandir=/usr/man \
--with-ensurepip=install

# Build it
make -j $(nproc)

# Test the build (may require su/sudo)
make test

# Become root to clean up old files and to install it
su

# Remove the Slackware packages, if there are any installed:
test -x /sbin/removepkg &&
/sbin/removepkg python python3 python-demo python-pillow python-setuptools \
python-tools

# Install the new version
#
# Use 'make install' for whatever you want your default version of
# Python to be.  i.e. what you get when you run 'python'.
#
# If you use 'make altinstall' instead, that will leave existing python
# and python-config (usually in /usr/bin) pointing to whatever it was
# already pointing to.  In that case, you would need to run 'python3' if
# this is the only 3.x one, or 'python3.9' if there are others 3.x versions
# installed such as 3.8.x

# Install it
make install
ldconfig

# Right now if you run 'python3' or 'python3.9' you will get Python 3.9.21
# Right now if you run 'pip3' or 'pip3.9' you will get pip 3.9.21
# (if /usr/bin/pip is a script, not a symlink, should get you 3.9.21)

# If you want to ensure that running only python, python-config, pip, pydoc
# without a 3 or a 3.9, gets you 3.9.21, do the following:
# [ this will only remove existing symlinks, not scripts ]
( cd /usr/bin
  test -L 2to3 && rm 2to3
  test -L pip && rm pip
  test -L pydoc && rm pydoc
  test -L python && rm python
  test -L python-config && rm python-config
  test ! -e 2to3 && ln -s 2to3-3.9 2to3
  test ! -e pip && ln -s pip3.9 pip
  test ! -e pydoc && ln -s pydoc3.9 pydoc
  test ! -e python && ln -s python3.9 python
  test ! -e python-config && ln -s python3.9-config python-config )

# If your python3, python3-config, pip3, pydoc3 symlinks need to be updated
# (probably not):
( cd /usr/bin
  test -L pip3 && rm pip3
  test -L pydoc3 && rm pydoc3
  test -L python3 && rm python3
  test -L python3-config && rm python3-config
  test ! -e pip3 && ln -sf pip3.9 pip3
  test ! -e pydoc3 && ln -sf pydoc3.9 pydoc3
  test ! -e python3 && ln -sf python3.9 python3
  test ! -e python3-config && ln -sf python3.9-config python3-config )

# You should have a /usr/include/python3.9/
#
# And you should have a /usr/lib*/libpython3.9.so.1
# and a /usr/lib*/libpython3.9.so symlink pointing to libpython3.9.so.1
# and a /usr/lib*/libpython3.so
#
# And in /usr/lib*/pkgconfig/ you should have:
# python-3.9-embed.pc
# python3-embed.pc symlink pointing to python-3.9.embed.pc
# python-3.9.pc
# python3.pc symlink pointing to python-3.9.pc
#
# And you should have /usr/lib*/python3.9/
#
# And in /usr/man/man1/ you should have:
# python3.9.1 ('man python3.9')
# python3.1 symlink pointing to python3.9.1 ('man python3')

# Make sure your non-root user can remove the source later
chown -R $(logname) .
chmod -R u+w .

# If you used 'make altinstall' and already had a previous version of Python
# installed, then the python and python-config symlinks should still point
# to the previous version.
# If you used the regular 'make install' and now you want 'python' and
# 'python3' to run an older one such as 3.8.x while 3.9.x is also installed,
# you may need to do something like this:
# ln -sf /usr/bin/pydoc3.8-config /usr/bin/pydoc3
# ln -sf /usr/bin/pydoc3.8-config /usr/bin/pydoc
# ln -sf /usr/bin/pip3.8 /usr/bin/pip3
# ln -sf /usr/bin/pip3.8 /usr/bin/pip
# ln -sf /usr/bin/python3.8 /usr/bin/python3
# ln -sf /usr/bin/python3.8 /usr/bin/python
# ln -sf /usr/bin/python3.8-config /usr/bin/python3-config
# ln -sf /usr/bin/python3.8-config /usr/bin/python-config

# If you want to upgrade pip, with pip, run the following:
/usr/bin/python3.9 -m pip install --upgrade pip

# For pip usage:
pip3.9 --version
pip3 --help
pip install --help

# Become yourself again
exit

# Keep the tarball for later
cd
mkdir -p -m 0700 installed
rm -f installed/Python-3.*.tgz installed/Python-3.*.tar.*
mv Python-3.9.21.tar.xz installed/