Requirements:
- Ubuntu/Debian:
sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev
libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev xz-utils
- Fedora/CentOS/RHEL:
FIXME: you may need to install xz to build some CPython version
yum install zlib-devel bzip2 bzip2-devel readline-devel sqlite sqlite-devel openssl-devel
- Mac OS X:
brew install readline xz
NOTE: libssl-dev is required when compiling Python, installing libssl-dev will actually install zlib1g-dev, which leads to uninstall and re-install Python versions (installed before installing libssl-dev). On Redhat and derivatives the package is named openssl-devel.
Removing a python version
rm -rf ~/.pyenv/versions/2.7.5
Installing a 32 bit python on 64 bit Mac OS X (this will not work on Linux)
CONFIGURE_OPTS="--with-arch=i386" CFLAGS="-arch i386" LDFLAGS="-arch i386" python-build options
Installing a system-wide Python
If you want to install a Python interpreter that's available to all users and system scripts (no pyenv), use /usr/local/ as the install path. For example:
sudo python-build 3.3.2 /usr/local/
Make your pythons a little faster
You can set your CFLAGS to accepted safe values to help get a little more speed.
CFLAGS='-O2'
Build failed - bad interpreter: Permission denied
If you encounter this error while installing python and your server is a VPS, the /tmp directory where python-build download and compile the packages is probably mounted as noexec. You can check with your hosting provider if wether they provide a way to bypass this protection.
If the answer is no, just set the $TMPDIR environment variable to wherever you have a write + execution rights. For example:
export TMPDIR="$HOME/src"
Please note you'll have to do it every time you'll want to install a new version of python unless you write this command in your ~/.bashrc.
Build failed
If you've got something like that:
$ pyenv install 2.7.5
Downloading http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz...
Installing yaml-0.1.4...
BUILD FAILED
Please, be sure to have "make" installed ($ sudo apt-get install make). On Ubuntu Server, by default, it doesn't.
Build failed: "ERROR: The Python zlib extension was not compiled. Missing the zlib?"
Installing Python-2.7.7...
ERROR: The Python zlib extension was not compiled. Missing the zlib?
Please consult to the Wiki page to fix the problem.
https://github.com/yyuu/pyenv/wiki/Common-build-problems
BUILD FAILED
- On Mac OS X 10.9, 10.10 and 10.11 you may need to set the CFLAGS environment variable when installing a new version in order for configure to find the zlib headers (XCode command line tools must be installed first):
CFLAGS="-I$(xcrun --show-sdk-path)/usr/include" pyenv install -v 2.7.7
- Alternatively, try reinstalling XCode command line tools for your OS (especially if you just upgraded your OS)
xcode-select --install
ERROR: The Python ssl extension was not compiled. Missing the OpenSSL lib?
- If you have homebrew openssl and pyenv installed, you may need to tell the compiler where the openssl package is located:
CFLAGS="-I$(brew --prefix openssl)/include"
LDFLAGS="-L$(brew --prefix openssl)/lib"
pyenv install -v 3.4.3
or (checked on RHEL6):
CFLAGS=-I/usr/include/openssl
LDFLAGS=-L/usr/lib64
pyenv install -v 3.4.3
- Alternatively, if you installed openssl with macports, use the following paths:
CFLAGS="-I/opt/local/include/"
LDFLAGS="-L/opt/local/lib/"
pyenv install -v 3.4.3
- On FreeBSD 10-RELEASE and 11-CURRENT, you may need to recompile
security/opensslwithout SSLv2 support. (See #464).
python-build: definition not found
To update your python-build definitions:
If you have python-build installed as an pyenv plugin:
$ cd ~/.pyenv/plugins/python-build && git pull