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 .TH IPYTHON 1 "November 30, 2004"
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 .SH NAME
 ipython \- An Enhanced Interactive Python
 .SH SYNOPSIS
 .B ipython
 .RI [ options ] " files" ...
 .SH DESCRIPTION
 An interactive Python shell with automatic history (input and output),
 dynamic object introspection, easier configuration, command
 completion, access to the system shell, integration with numerical and
 scientific computing tools, and more.
 .SH SPECIAL THREADING OPTIONS
 The following special options are ONLY valid at the beginning of the command
 line, and not later.  This is because they control the initialization of
 ipython itself, before the normal option-handling mechanism is active.
 .TP
 .B \-gthread, \-qthread, \-q4thread, \-wthread, \-pylab
 Only ONE of these can be given, and it can only be given as the first option
 passed to IPython (it will have no effect in any other position).  They provide
 threading support for the GTK, QT3, QT4 and WXWidgets toolkits, for the
 matplotlib library and Twisted reactor.
 .br
 .sp 1
 With any of the first four options, IPython starts running a separate thread
 for the graphical toolkit's operation, so that you can open and control
 graphical elements from within an IPython command line, without blocking.  All
 four provide essentially the same functionality, respectively for GTK, QT3, QT4
 and WXWidgets (via their Python interfaces).
 .br
 .sp 1
 Note that with \-wthread, you can additionally use the \-wxversion option to
 request a specific version of wx to be used.  This requires that you have the
-'wxversion' Python module installed, which is part of recent wxPython
+wxversion Python module installed, which is part of recent wxPython
 distributions.
 .br
 .sp 1
 If \-pylab is given, IPython loads special support for the matplotlib library
 (http://matplotlib.sourceforge.net), allowing interactive usage of any of its
 backends as defined in the user's .matplotlibrc file.  It automatically
 activates GTK, QT or WX threading for IPyhton if the choice of matplotlib
 backend requires it.  It also modifies the %run command to correctly execute
 (without blocking) any matplotlib-based script which calls show() at the end.
 .TP
 .B \-tk
 The \-g/q/q4/wthread options, and \-pylab (if matplotlib is configured to use
 GTK, QT or WX), will normally block Tk graphical interfaces.  This means that
 when GTK, QT or WX threading is active, any attempt to open a Tk GUI will
 result in a dead window, and possibly cause the Python interpreter to crash.
 An extra option, \-tk, is available to address this issue.  It can ONLY be
 given as a SECOND option after any of the above (\-gthread, \-qthread,
 \-wthread or \-pylab).
 .br
 .sp 1
 If \-tk is given, IPython will try to coordinate Tk threading with GTK, QT or
 WX.  This is however potentially unreliable, and you will have to test on your
 platform and Python configuration to determine whether it works for you.
 Debian users have reported success, apparently due to the fact that Debian
 builds all of Tcl, Tk, Tkinter and Python with pthreads support.  Under other
 Linux environments (such as Fedora Core 2), this option has caused random
 crashes and lockups of the Python interpreter.  Under other operating systems
 (Mac OSX and Windows), you'll need to try it to find out, since currently no
 user reports are available.
 .br
 .sp 1
 There is unfortunately no way for IPython to determine at runtime whether \-tk
 will work reliably or not, so you will need to do some experiments before
 relying on it for regular work.
 .
 .SH REGULAR OPTIONS
 After the above threading options have been given, regular options can follow
 in any order.  All options can be abbreviated to their shortest non-ambiguous
 form and are case-sensitive.  One or two dashes can be used.  Some options
 have an alternate short form, indicated after a |.
 .br
 .sp 1
 Most options can also be set from your ipythonrc configuration file.
 See the provided examples for assistance.  Options given on the
 commandline override the values set in the ipythonrc file.
 .br
 .sp 1
 All options with a [no] prepended can be specified in negated form
 (\-nooption instead of \-option) to turn the feature off.
 .TP
 .B \-h, \-\-help
 Show summary of options.
 .TP
 .B \-autocall <val>
 Make IPython automatically call any callable object even if you didn't type
 explicit parentheses. For example, 'str 43' becomes
-'str(43)' automatically.  The value can be '0' to disable the
+str(43) automatically.  The value can be '0' to disable the
 feature, '1' for 'smart' autocall, where it is not applied if
 there are no more arguments on the line, and '2' for 'full'
 autocall, where all callable objects are automatically called
 (even if no arguments are present).  The default is '1'.
 .TP
 .B \-[no]autoindent
 Turn automatic indentation on/off.
 .TP
 .B \-[no]automagic
 Make magic commands automatic (without needing their first character
 to be %).  Type %magic at the IPython prompt for more information.
 .TP
 .B \-[no]autoedit_syntax
 When a syntax error occurs after editing a file, automatically open the file
 to the trouble causing line for convenient fixing.
 .TP
 .B \-[no]banner
 Print the intial information banner (default on).
 .TP
 .B \-c <command>
 Execute the given command string, and set sys.argv to ['c'].  This is similar
 to the \-c option in the normal Python interpreter.
 .TP
 .B \-cache_size|cs <n>
 Size of the output cache (maximum number of entries to hold in
 memory).  The default is 1000, you can change it permanently in your
 config file.  Setting it to 0 completely disables the caching system,
 and the minimum value accepted is 20 (if you provide a value less than
 20, it is reset to 0 and a warning is issued).  This limit is defined
 because otherwise you'll spend more time re-flushing a too small cache
 than working.
 .TP
 .B \-classic|cl
 Gives IPython a similar feel to the classic Python prompt.
 .TP
 .B \-colors <scheme>
 Color scheme for prompts and exception reporting.  Currently
 implemented: NoColor, Linux, and LightBG.
 .TP
 .B \-[no]color_info
 IPython can display information about objects via a set of functions,
 and optionally can use colors for this, syntax highlighting source
 code and various other elements.  However, because this information is
 passed through a pager (like 'less') and many pagers get confused with
 color codes, this option is off by default.  You can test it and turn
 it on permanently in your ipythonrc file if it works for you.  As a
 reference, the 'less' pager supplied with Mandrake 8.2 works ok, but
 that in RedHat 7.2 doesn't.
 .br
 .sp 1
 Test it and turn it on permanently if it works with your system.  The
 magic function @color_info allows you to toggle this interactively for
 testing.
 .TP
 .B \-[no]confirm_exit
 Set to confirm when you try to exit IPython with an EOF (Control-D in
 Unix, Control-Z/Enter in Windows). Note that using the magic functions
 @Exit or @Quit you can force a direct exit, bypassing any
 confirmation.
 .TP
 .B \-[no]debug
 Show information about the loading process. Very useful to pin down
 problems with your configuration files or to get details about session
 restores.
 .TP
 .B \-[no]deep_reload
 IPython can use the deep_reload module which reloads changes in
 modules recursively (it replaces the reload() function, so you don't
 need to change anything to use it). deep_reload() forces a full reload
 of modules whose code may have changed, which the default reload()
 function does not.
 .br
 .sp 1
 When deep_reload is off, IPython will use the normal reload(), but
 deep_reload will still be available as dreload(). This feature is off
 by default [which means that you have both normal reload() and
 dreload()].
 .TP
 .B \-editor <name>
 Which editor to use with the @edit command. By default, IPython will
 honor your EDITOR environment variable (if not set, vi is the Unix
 default and notepad the Windows one). Since this editor is invoked on
 the fly by IPython and is meant for editing small code snippets, you
 may want to use a small, lightweight editor here (in case your default
 EDITOR is something like Emacs).
 .TP
 .B \-ipythondir <name>
 The name of your IPython configuration directory IPYTHONDIR.  This can
 also be specified through the environment variable IPYTHONDIR.
 .TP
 .B \-log|l
 Generate a log file of all input. The file is named ipython_log.py in your
 current directory (which prevents logs from multiple IPython sessions from
 trampling each other). You can use this to later restore a session by loading
 your logfile as a file to be executed with option -logplay (see below).
 .TP
 .B \-logfile|lf
 Specify the name of your logfile.
 .TP
 .B \-logplay|lp
 Replay a previous log. For restoring a session as close as possible to
 the state you left it in, use this option (don't just run the
 logfile). With \-logplay, IPython will try to reconstruct the previous
 working environment in full, not just execute the commands in the
 logfile.
 .br
-.sh 1
+.sp 1
 When a session is restored, logging is automatically turned on again
 with the name of the logfile it was invoked with (it is read from the
 log header). So once you've turned logging on for a session, you can
 quit IPython and reload it as many times as you want and it will
 continue to log its history and restore from the beginning every time.
 .br
 .sp 1
 Caveats: there are limitations in this option. The history variables
 _i*,_* and _dh don't get restored properly. In the future we will try
 to implement full session saving by writing and retrieving a
-'snapshot' of the memory state of IPython. But our first attempts
+snapshot of the memory state of IPython. But our first attempts
 failed because of inherent limitations of Python's Pickle module, so
 this may have to wait.
 .TP
 .B \-[no]messages
 Print messages which IPython collects about its startup process
 (default on).
 .TP
 .B \-[no]pdb
 Automatically call the pdb debugger after every uncaught exception. If
 you are used to debugging using pdb, this puts you automatically
 inside of it after any call (either in IPython or in code called by
 it) which triggers an exception which goes uncaught.
 .TP
 .B \-pydb
 Makes IPython use the third party "pydb" package as debugger,
 instead of pdb. Requires that pydb is installed.
 .TP
 .B \-[no]pprint
 IPython can optionally use the pprint (pretty printer) module for
 displaying results. pprint tends to give a nicer display of nested
 data structures. If you like it, you can turn it on permanently in
 your config file (default off).
 .TP
 .B \-profile|p <name>
 Assume that your config file is ipythonrc-<name> (looks in current dir
 first, then in IPYTHONDIR). This is a quick way to keep and load
 multiple config files for different tasks, especially if you use the
 include option of config files. You can keep a basic
 IPYTHONDIR/ipythonrc file and then have other 'profiles' which include
 this one and load extra things for particular tasks. For example:
 .br
 .sp 1
 1) $HOME/.ipython/ipythonrc : load basic things you always want.
 .br
 2) $HOME/.ipython/ipythonrc-math : load (1) and basic math-related
 modules.
 .br
 3) $HOME/.ipython/ipythonrc-numeric : load (1) and Numeric and
 plotting modules.
 .br
 .sp 1
 Since it is possible to create an endless loop by having circular file
 inclusions, IPython will stop if it reaches 15 recursive inclusions.
 .TP
 .B \-prompt_in1|pi1 <string>
 Specify the string used for input prompts. Note that if you are using
 numbered prompts, the number is represented with a '\\#' in the
 string. Don't forget to quote strings with spaces embedded in
 them. Default: 'In [\\#]: '.
 .br
 .sp 1
 Most bash-like escapes can be used to customize IPython's prompts, as well as
 a few additional ones which are IPython-specific.  All valid prompt escapes
 are described in detail in the Customization section of the IPython HTML/PDF
 manual.
 .TP
 .B \-prompt_in2|pi2 <string>
 Similar to the previous option, but used for the continuation prompts. The
 special sequence '\\D' is similar to '\\#', but with all digits replaced dots
 (so you can have your continuation prompt aligned with your input
 prompt). Default: '   .\\D.: ' (note three spaces at the start for alignment
 with 'In [\\#]').
 .TP
 .B \-prompt_out|po <string>
 String used for output prompts, also uses numbers like prompt_in1.
 Default: 'Out[\\#]:'.
 .TP
 .B \-quick
 Start in bare bones mode (no config file loaded).
 .TP
 .B \-rcfile <name>
 Name of your IPython resource configuration file.  normally IPython
 loads ipythonrc (from current directory) or IPYTHONDIR/ipythonrc.  If
 the loading of your config file fails, IPython starts with a bare
 bones configuration (no modules loaded at all).
 .TP
 .B \-[no]readline
 Use the readline library, which is needed to support name completion
 and command history, among other things. It is enabled by default, but
 may cause problems for users of X/Emacs in Python comint or shell
 buffers.
 .br
 .sp 1
 Note that emacs 'eterm' buffers (opened with M-x term) support
 IPython's readline and syntax coloring fine, only 'emacs' (M-x shell
 and C-c !)  buffers do not.
 .TP
 .B \-screen_length|sl <n>
 Number of lines of your screen.  This is used to control printing of
 very long strings.  Strings longer than this number of lines will be
 sent through a pager instead of directly printed.
 .br
 .sp 1
 The default value for this is 0, which means IPython will auto-detect
 your screen size every time it needs to print certain potentially long
 strings (this doesn't change the behavior of the 'print' keyword, it's
 only triggered internally). If for some reason this isn't working well
 (it needs curses support), specify it yourself. Otherwise don't change
 the default.
 .TP
 .B \-separate_in|si <string>
 Separator before input prompts.  Default '\n'.
 .TP
 .B \-separate_out|so <string>
 Separator before output prompts.  Default: 0 (nothing).
 .TP
 .B \-separate_out2|so2 <string>
 Separator after output prompts.  Default: 0 (nothing).
 .TP
 .B \-nosep
 Shorthand for '\-separate_in 0 \-separate_out 0 \-separate_out2 0'.
 Simply removes all input/output separators.
 .TP
 .B \-upgrade
 Allows you to upgrade your IPYTHONDIR configuration when you install a
 new version of IPython.  Since new versions may include new command
 lines options or example files, this copies updated ipythonrc-type
 files.  However, it backs up (with a .old extension) all files which
 it overwrites so that you can merge back any custimizations you might
 have in your personal files.
 .TP
 .B \-Version
 Print version information and exit.
 .TP
 .B -wxversion <string>
 Select a specific version of wxPython (used in conjunction with
 \-wthread). Requires the wxversion module, part of recent wxPython
 distributions.
 .TP
 .B \-xmode <modename>
 Mode for exception reporting.  The valid modes are Plain, Context, and
 Verbose.
 .br
 .sp 1
 \- Plain: similar to python's normal traceback printing.
 .br
 .sp 1
 \- Context: prints 5 lines of context source code around each line in the
 traceback.
 .br
 .sp 1
 \- Verbose: similar to Context, but additionally prints the variables
 currently visible where the exception happened (shortening their strings if
 too long).  This can potentially be very slow, if you happen to have a huge
 data structure whose string representation is complex to compute.  Your
 computer may appear to freeze for a while with cpu usage at 100%.  If this
 occurs, you can cancel the traceback with Ctrl-C (maybe hitting it more than
 once).
 .
 .SH EMBEDDING
 It is possible to start an IPython instance inside your own Python
 programs.  In the documentation example files there are some
 illustrations on how to do this.
 .br
 .sp 1
 This feature allows you to evalutate dynamically the state of your
 code, operate with your variables, analyze them, etc.  Note however
 that any changes you make to values while in the shell do NOT
 propagate back to the running code, so it is safe to modify your
 values because you won't break your code in bizarre ways by doing so.
 .SH AUTHOR
 IPython was written by Fernando Perez <[e-mail]>, based on earlier
 code by Janko Hauser <[e-mail]> and Nathaniel Gray
 <[e-mail]>.  This manual page was written by Jack Moffitt
 <[e-mail]>, for the Debian project (but may be used by others).