jupyter notebook即原来的Ipython notebook的使用方法

jupyter 的快捷键

​IPython -- An enhanced Interactive Python - Quick Reference Card================================================================obj?, obj??      : Get help, or more help for object (also works as                   ?obj, ??obj).?foo.*abc*       : List names in 'foo' containing 'abc' in them.%magic           : Information about IPython's 'magic' % functions.Magic functions are prefixed by % or %%, and typically take their argumentswithout parentheses, quotes or even commas for convenience.  Line magics take asingle % and cell magics are prefixed with two %%.Example magic function calls:%alias d ls -F   : 'd' is now an alias for 'ls -F'alias d ls -F    : Works if 'alias' not a python namealist = %alias   : Get list of aliases to 'alist'cd /usr/share    : Obvious. cd -<tab> to choose from visited dirs.%cd??            : See help AND source for magic %cd%timeit x=10     : time the 'x=10' statement with high precision.%%timeit x=2**100x**100           : time 'x**100' with a setup of 'x=2**100'; setup code is not                   counted.  This is an example of a cell magic.System commands:!cp a.txt b/     : System command escape, calls os.system()cp a.txt b/      : after %rehashx, most system commands work without !cp ${f}.txt $bar : Variable expansion in magics and system commandsfiles = !ls /usr : Capture sytem command outputfiles.s, files.l, files.n: "a b c", ['a','b','c'], 'a\nb\nc'History:_i, _ii, _iii    : Previous, next previous, next next previous input_i4, _ih[2:5]    : Input history line 4, lines 2-4exec _i81        : Execute input history line #81 again%rep 81          : Edit input history line #81_, __, ___       : previous, next previous, next next previous output_dh              : Directory history_oh              : Output history%hist            : Command history of current session.%hist -g foo     : Search command history of (almost) all sessions for 'foo'.%hist -g         : Command history of (almost) all sessions.%hist 1/2-8      : Command history containing lines 2-8 of session 1.%hist 1/ ~2/     : Command history of session 1 and 2 sessions before current.%hist ~8/1-~6/5  : Command history from line 1 of 8 sessions ago to                   line 5 of 6 sessions ago.%edit 0/         : Open editor to execute code with history of current session.Autocall:f 1,2            : f(1,2)  # Off by default, enable with %autocall magic./f 1,2           : f(1,2) (forced autoparen),f 1 2           : f("1","2");f 1 2           : f("1 2")Remember: TAB completion works in many contexts, not just file namesor python names.The following magic functions are currently available:%alias:    Define an alias for a system command.%alias_magic:    ::%autocall:    Make functions callable without having to type parentheses.%automagic:    Make magic functions callable without having to type the initial %.%autosave:    Set the autosave interval in the notebook (in seconds).%bookmark:    Manage IPython's bookmark system.%cat:    Alias for `!cat`%cd:    Change the current working directory.%clear:    Clear the terminal.%colors:    Switch color scheme for prompts, info system and exception handlers.%config:    configure IPython%connect_info:    Print information for connecting other clients to this kernel%cp:    Alias for `!cp`%debug:    ::%dhist:    Print your history of visited directories.%dirs:    Return the current directory stack.%doctest_mode:    Toggle doctest mode on and off.%ed:    Alias for `%edit`.%edit:    Bring up an editor and execute the resulting code.%env:    Get, set, or list environment variables.%gui:    Enable or disable IPython GUI event loop integration.%hist:    Alias for `%history`.%history:    ::%killbgscripts:    Kill all BG processes started by %%script and its family.%ldir:    Alias for `!ls -F -o --color %l | grep /$`%less:    Show a file through the pager.%lf:    Alias for `!ls -F -o --color %l | grep ^-`%lk:    Alias for `!ls -F -o --color %l | grep ^l`%ll:    Alias for `!ls -F -o --color`%load:    Load code into the current frontend.%load_ext:    Load an IPython extension by its module name.%loadpy:    Alias of `%load`%logoff:    Temporarily stop logging.%logon:    Restart logging.%logstart:    Start logging anywhere in a session.%logstate:    Print the status of the logging system.%logstop:    Fully stop logging and close log file.%ls:    Alias for `!ls -F --color`%lsmagic:    List currently available magic functions.%lx:    Alias for `!ls -F -o --color %l | grep ^-..x`%macro:    Define a macro for future re-execution. It accepts ranges of history,%magic:    Print information about the magic function system.%man:    Find the man page for the given command and display in pager.%matplotlib:    ::%mkdir:    Alias for `!mkdir`%more:    Show a file through the pager.%mv:    Alias for `!mv`%notebook:    ::%page:    Pretty print the object and display it through a pager.%pastebin:    Upload code to Github's Gist paste bin, returning the URL.%pdb:    Control the automatic calling of the pdb interactive debugger.%pdef:    Print the call signature for any callable object.%pdoc:    Print the docstring for an object.%pfile:    Print (or run through pager) the file where an object is defined.%pinfo:    Provide detailed information about an object.%pinfo2:    Provide extra detailed information about an object.%popd:    Change to directory popped off the top of the stack.%pprint:    Toggle pretty printing on/off.%precision:    Set floating point precision for pretty printing.%profile:    Print your currently active IPython profile.%prun:    Run a statement through the python code profiler.%psearch:    Search for object in namespaces by wildcard.%psource:    Print (or run through pager) the source code for an object.%pushd:    Place the current dir on stack and change directory.%pwd:    Return the current working directory path.%pycat:    Show a syntax-highlighted file through a pager.%pylab:    ::%qtconsole:    Open a qtconsole connected to this kernel.%quickref:    Show a quick reference sheet %recall:    Repeat a command, or get command to input line for editing.%rehashx:    Update the alias table with all executable files in $PATH.%reload_ext:    Reload an IPython extension by its module name.%rep:    Alias for `%recall`.%rerun:    Re-run previous input%reset:    Resets the namespace by removing all names defined by the user, if%reset_selective:    Resets the namespace by removing names defined by the user.%rm:    Alias for `!rm`%rmdir:    Alias for `!rmdir`%run:    Run the named file inside IPython as a program.%save:    Save a set of lines or a macro to a given filename.%sc:    Shell capture - run shell command and capture output (DEPRECATED use !).%set_env:    Set environment variables.  Assumptions are that either "val" is a%store:    Lightweight persistence for python variables.%sx:    Shell execute - run shell command and capture output (!! is short-hand).%system:    Shell execute - run shell command and capture output (!! is short-hand).%tb:    Print the last traceback with the currently active exception mode.%time:    Time execution of a Python statement or expression.%timeit:    Time execution of a Python statement or expression%unalias:    Remove an alias%unload_ext:    Unload an IPython extension by its module name.%who:    Print all interactive variables, with some minimal formatting.%who_ls:    Return a sorted list of all interactive variables.%whos:    Like %who, but gives some extra information about each variable.%xdel:    Delete a variable, trying to clear it from anywhere that%xmode:    Switch modes for the exception handlers.%%!:    Shell execute - run shell command and capture output (!! is short-hand).%%HTML:    Alias for `%%html`.%%SVG:    Alias for `%%svg`.%%bash:    %%bash script magic%%capture:    ::%%debug:    ::%%file:    Alias for `%%writefile`.%%html:    Render the cell as a block of HTML%%javascript:    Run the cell block of Javascript code%%js:    Run the cell block of Javascript code%%latex:    Render the cell as a block of latex%%perl:    %%perl script magic%%prun:    Run a statement through the python code profiler.%%pypy:    %%pypy script magic%%python:    %%python script magic%%python2:    %%python2 script magic%%python3:    %%python3 script magic%%ruby:    %%ruby script magic%%script:    ::%%sh:    %%sh script magic%%svg:    Render the cell as an SVG literal%%sx:    Shell execute - run shell command and capture output (!! is short-hand).%%system:    Shell execute - run shell command and capture output (!! is short-hand).%%time:    Time execution of a Python statement or expression.%%timeit:    Time execution of a Python statement or expression%%writefile:    ::