docker-alpine-pyenv.txt

# fetch latest Alpine image
docker pull alpine

# run Alpine in a container
docker run -it alpine /bin/sh

# install man
apk add man man-pages mdocml-apropos less less-doc
export PAGER=less

# install bash
apk add bash bash-doc bash-completion

# install curl
apk add curl curl-doc

# install git
apk add git git-doc

# install gcc and some libs
apk add build-base gcc-doc

# explicitly install patch (the one with Alpine's build-base doesn't support force) to fix: patch: unrecognized option: force
apk add patch

# install (may not need)
#apk add zip zip-doc

# install zlib source to fix: zipimport.ZipImportError: can't decompress data; zlib not available
apk add zlib-dev

# install libffi source to fix: ModuleNotFoundError: No module named '_ctypes'
apk add libffi-dev

# install linux headers to fix: ModuleNotFoundError: No module named '_socket'
apk add linux-headers

# install readline source to fix: WARNING: The Python readline extension was not compiled. Missing the GNU readline lib?
apk add readline-dev

# install openssl and source to fix: ERROR: The Python ssl extension was not compiled. Missing the OpenSSL lib?
apk add openssl openssl-dev

# install sqlite source to fix: WARNING: The Python sqlite3 extension was not compiled. Missing the SQLite3 lib?
apk add sqlite-dev

# install bzip source to fix: WARNING: The Python bz2 extension was not compiled. Missing the bzip2 lib?
apk add bzip2-dev

# install pyenv pyenv-doctor pyenv-installer pyenv-update pyenv-virtualenv pyenv-which-ext
curl https://raw.githubusercontent.com/pyenv/pyenv-installer/master/bin/pyenv-installer | bash
# these need to go into your .bashrc
export PATH="/root/.pyenv/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

# install a python
pyenv install 3.7.0




### didn't need
# apk add ca-certificates ncurses-dev 



### Nice to haves
highlight with ccat alias
vim




### How to fix "error: conflicting types for 'posix_close'" for older versions during pyenv install
### on a musl libc distro like Alpine
# [[PATCH] fail to compile posixmodule due to name clash with posix_close](https://bugs.python.org/issue20594)

## Ex. 1
curl -O https://www.python.org/ftp/python/2.6.6/Python-2.6.6.tgz
tar -zxvf Python-2.6.6.tgz
cd Python-2.6.6
cp Modules/posixmodule.c Modules/posixmodule.c.orig
vi Modules/posixmodule.c
# replace "posix_close" with "posix_closex". should only be 2 places. don't do global change
diff -u Modules/posixmodule.c.orig Modules/posixmodule.c > ~/posix_close.patch

--- ./Modules/posixmodule.c.orig	2018-10-11 18:39:37.000000000 -0500
+++ ./Modules/posixmodule.c	2018-10-11 18:41:36.000000000 -0500
@@ -6357,7 +6357,7 @@
 Close a file descriptor (for low level IO).");

 static PyObject *
-posix_close(PyObject *self, PyObject *args)
+posix_closex(PyObject *self, PyObject *args)
 {
     int fd, res;
     if (!PyArg_ParseTuple(args, "i:close", &fd))
@@ -8684,7 +8684,7 @@
     {"tcsetpgrp",       posix_tcsetpgrp, METH_VARARGS, posix_tcsetpgrp__doc__},
 #endif /* HAVE_TCSETPGRP */
     {"open",            posix_open, METH_VARARGS, posix_open__doc__},
-    {"close",           posix_close, METH_VARARGS, posix_close__doc__},
+    {"close",           posix_closex, METH_VARARGS, posix_close__doc__},
     {"closerange",      posix_closerange, METH_VARARGS, posix_closerange__doc__},
     {"dup",             posix_dup, METH_VARARGS, posix_dup__doc__},
     {"dup2",            posix_dup2, METH_VARARGS, posix_dup2__doc__},

# then run pyenv with the patch.
cd ..
cat posix_close.patch | pyenv install -p -v 2.6.6

## Ex. 2
curl -O https://www.python.org/ftp/python/3.3.3/Python-3.3.3.tgz
tar -zxvf Python-3.3.3.tgz
cd Python-3.3.3
cp Modules/posixmodule.c Modules/posixmodule.c.orig
vi Modules/posixmodule.c
# replace "posix_close" with "posix_closex". should only be 2 places. don't do global auto replace
diff -u Modules/posixmodule.c.orig Modules/posixmodule.c > ~/posix_close.patch
cd ..
cat posix_close.patch | pyenv install -p -v 3.3.3


### Notes

# https://wiki.alpinelinux.org/wiki/How_to_get_regular_stuff_working

# https://github.com/vadviktor/docker-pyenv-alpine

# https://hackernoon.com/top-10-docker-commands-you-cant-live-without-54fb6377f481

# kill all running containers
docker kill $(docker ps -q)

# delete all stopped containers
docker rm $(docker ps -a -q)

# delete all images
docker rmi $(docker images -q)

# show installed deps
apk info | sort

# activate a python
pyenv local 3.7.0

# check the version
python --version

# show available versions for installation
pyenv install --list


# pyenv installs pip for all versions
~ # pyenv local 2.6.6
~ # python --version
Python 2.6.6
~ # pip -V
pip 9.0.3 from /root/.pyenv/versions/2.6.6/lib/python2.6/site-packages (python 2.6)