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IPython Notebook with multiple kernels and virtualenv

Explanations of how to install and use IPython Notebook with a venv and multiple virtualenv (one for Python 2 and one for Python 3).

We run step-by-step and detail all the operations. A quicker, more concise guide can be found at the end of this gist.

We create first one venv for each version of Python.

mkvirtualenv -p /path/to/python2.7 venv-name
deactivate

	#![feature(prelude_import)]
	#![recursion_limit = "256"]
	#[prelude_import]
	use std::prelude::rust_2021::*;
	#[macro_use]
	extern crate std;
	pub use frame_support::{
	construct_runtime, parameter_types,
	traits::{
	ConstU128, ConstU32, ConstU64, ConstU8, KeyOwnerProofSystem, Randomness, StorageInfo,

	int foo(char* x, char*, int a, int b) { return a + b; }

	typedef int (*func)(int, int);

	int main() {
	int a = 10, b = 20, c = 0;

	void* p = (void*)foo;
	__asm__ __volatile__(
	"movl %%edx,%%esi; "

	#include <stdint.h>
	#include <stdio.h>
	#include <stdlib.h>

	// munged from https://github.com/simontime/Resead

	namespace sead
	{
	class Random
	{

	$ sudo pacman -S ibus ibus-rime
	$ sudo pacman -S ttf-dejavu adobe-source-han-sans-otc-fonts
	$ cat .xinitrc
	...
	export GTK_IM_MODULE=ibus
	export QT_IM_MODULE=ibus
	export XMODIFIERS="@im=ibus"
	...
	$ sudo reboot

	set -g default-terminal screen-256color

	set-option -g mouse on

	# List of plugins
	set -g @plugin 'tmux-plugins/tpm'
	set -g @plugin 'tmux-plugins/tmux-sensible'

	# Other examples:
	# set -g @plugin 'github_username/plugin_name'