##// END OF EJS Templates
Many fixes to the documentation prior to release 0.9....
Fernando Perez -
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1 NO CONTENT: file renamed from docs/source/parallel/parallel_task_old.txt to docs/source/attic/parallel_task_old.txt
NO CONTENT: file renamed from docs/source/parallel/parallel_task_old.txt to docs/source/attic/parallel_task_old.txt
@@ -1,7 +1,6 b''
1 # -*- coding: utf-8 -*-
1 # -*- coding: utf-8 -*-
2 #
2 #
3 # IPython documentation build configuration file, created by
3 # IPython documentation build configuration file.
4 # sphinx-quickstart on Thu May 8 16:45:02 2008.
5
4
6 # NOTE: This file has been edited manually from the auto-generated one from
5 # NOTE: This file has been edited manually from the auto-generated one from
7 # sphinx. Do NOT delete and re-generate. If any changes from sphinx are
6 # sphinx. Do NOT delete and re-generate. If any changes from sphinx are
@@ -21,7 +20,11 b' import sys, os'
21 # If your extensions are in another directory, add it here. If the directory
20 # If your extensions are in another directory, add it here. If the directory
22 # is relative to the documentation root, use os.path.abspath to make it
21 # is relative to the documentation root, use os.path.abspath to make it
23 # absolute, like shown here.
22 # absolute, like shown here.
24 #sys.path.append(os.path.abspath('some/directory'))
23 sys.path.append(os.path.abspath('../sphinxext'))
24
25 # Import support for ipython console session syntax highlighting (lives
26 # in the sphinxext directory defined above)
27 import ipython_console_highlighting
25
28
26 # We load the ipython release info into a dict by explicit execution
29 # We load the ipython release info into a dict by explicit execution
27 iprelease = {}
30 iprelease = {}
@@ -32,7 +35,10 b" execfile('../../IPython/Release.py',iprelease)"
32
35
33 # Add any Sphinx extension module names here, as strings. They can be extensions
36 # Add any Sphinx extension module names here, as strings. They can be extensions
34 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
37 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
35 #extensions = []
38 extensions = ['sphinx.ext.autodoc',
39 'inheritance_diagram', 'only_directives', 'plot_directive',
40 'ipython_console_highlighting',
41 ]
36
42
37 # Add any paths that contain templates here, relative to this directory.
43 # Add any paths that contain templates here, relative to this directory.
38 templates_path = ['_templates']
44 templates_path = ['_templates']
@@ -67,7 +73,7 b" today_fmt = '%B %d, %Y'"
67
73
68 # List of directories, relative to source directories, that shouldn't be searched
74 # List of directories, relative to source directories, that shouldn't be searched
69 # for source files.
75 # for source files.
70 #exclude_dirs = []
76 exclude_dirs = ['attic']
71
77
72 # If true, '()' will be appended to :func: etc. cross-reference text.
78 # If true, '()' will be appended to :func: etc. cross-reference text.
73 #add_function_parentheses = True
79 #add_function_parentheses = True
@@ -135,7 +141,7 b" html_last_updated_fmt = '%b %d, %Y'"
135 #html_file_suffix = ''
141 #html_file_suffix = ''
136
142
137 # Output file base name for HTML help builder.
143 # Output file base name for HTML help builder.
138 htmlhelp_basename = 'IPythondoc'
144 htmlhelp_basename = 'ipythondoc'
139
145
140
146
141 # Options for LaTeX output
147 # Options for LaTeX output
@@ -173,5 +179,8 b" latex_documents = [ ('index', 'ipython.tex', 'IPython Documentation',"
173 #latex_use_modindex = True
179 #latex_use_modindex = True
174
180
175
181
176 # Cleanup: delete release info to avoid pickling errors from sphinx
182 # Cleanup
183 # -------
184 # delete release info to avoid pickling errors from sphinx
185
177 del iprelease
186 del iprelease
@@ -18,6 +18,8 b' time. A hybrid approach of specifying a few options in ipythonrc and'
18 doing the more advanced configuration in ipy_user_conf.py is also
18 doing the more advanced configuration in ipy_user_conf.py is also
19 possible.
19 possible.
20
20
21 .. _ipythonrc:
22
21 The ipythonrc approach
23 The ipythonrc approach
22 ======================
24 ======================
23
25
@@ -36,11 +38,11 b' fairly primitive). Note that these are not python files, and this is'
36 deliberate, because it allows us to do some things which would be quite
38 deliberate, because it allows us to do some things which would be quite
37 tricky to implement if they were normal python files.
39 tricky to implement if they were normal python files.
38
40
39 First, an rcfile can contain permanent default values for almost all
41 First, an rcfile can contain permanent default values for almost all command
40 command line options (except things like -help or -Version). Sec
42 line options (except things like -help or -Version). :ref:`This section
41 `command line options`_ contains a description of all command-line
43 <command_line_options>` contains a description of all command-line
42 options. However, values you explicitly specify at the command line
44 options. However, values you explicitly specify at the command line override
43 override the values defined in the rcfile.
45 the values defined in the rcfile.
44
46
45 Besides command line option values, the rcfile can specify values for
47 Besides command line option values, the rcfile can specify values for
46 certain extra special options which are not available at the command
48 certain extra special options which are not available at the command
@@ -266,13 +268,13 b' which look like this::'
266 IPython profiles
268 IPython profiles
267 ================
269 ================
268
270
269 As we already mentioned, IPython supports the -profile command-line
271 As we already mentioned, IPython supports the -profile command-line option (see
270 option (see sec. `command line options`_). A profile is nothing more
272 :ref:`here <command_line_options>`). A profile is nothing more than a
271 than a particular configuration file like your basic ipythonrc one,
273 particular configuration file like your basic ipythonrc one, but with
272 but with particular customizations for a specific purpose. When you
274 particular customizations for a specific purpose. When you start IPython with
273 start IPython with 'ipython -profile <name>', it assumes that in your
275 'ipython -profile <name>', it assumes that in your IPYTHONDIR there is a file
274 IPYTHONDIR there is a file called ipythonrc-<name> or
276 called ipythonrc-<name> or ipy_profile_<name>.py, and loads it instead of the
275 ipy_profile_<name>.py, and loads it instead of the normal ipythonrc.
277 normal ipythonrc.
276
278
277 This system allows you to maintain multiple configurations which load
279 This system allows you to maintain multiple configurations which load
278 modules, set options, define functions, etc. suitable for different
280 modules, set options, define functions, etc. suitable for different
@@ -11,28 +11,27 b' in a directory named by default $HOME/.ipython. You can change this by'
11 defining the environment variable IPYTHONDIR, or at runtime with the
11 defining the environment variable IPYTHONDIR, or at runtime with the
12 command line option -ipythondir.
12 command line option -ipythondir.
13
13
14 If all goes well, the first time you run IPython it should
14 If all goes well, the first time you run IPython it should automatically create
15 automatically create a user copy of the config directory for you,
15 a user copy of the config directory for you, based on its builtin defaults. You
16 based on its builtin defaults. You can look at the files it creates to
16 can look at the files it creates to learn more about configuring the
17 learn more about configuring the system. The main file you will modify
17 system. The main file you will modify to configure IPython's behavior is called
18 to configure IPython's behavior is called ipythonrc (with a .ini
18 ipythonrc (with a .ini extension under Windows), included for reference
19 extension under Windows), included for reference in `ipythonrc`_
19 :ref:`here <ipythonrc>`. This file is very commented and has many variables you
20 section. This file is very commented and has many variables you can
20 can change to suit your taste, you can find more details :ref:`here
21 change to suit your taste, you can find more details in
21 <customization>`. Here we discuss the basic things you will want to make sure
22 Sec. customization_. Here we discuss the basic things you will want to
22 things are working properly from the beginning.
23 make sure things are working properly from the beginning.
24
23
25
24
26 .. _Accessing help:
25 .. _accessing_help:
27
26
28 Access to the Python help system
27 Access to the Python help system
29 ================================
28 ================================
30
29
31 This is true for Python in general (not just for IPython): you should
30 This is true for Python in general (not just for IPython): you should have an
32 have an environment variable called PYTHONDOCS pointing to the directory
31 environment variable called PYTHONDOCS pointing to the directory where your
33 where your HTML Python documentation lives. In my system it's
32 HTML Python documentation lives. In my system it's
34 /usr/share/doc/python-docs-2.3.4/html, check your local details or ask
33 :file:`/usr/share/doc/python-doc/html`, check your local details or ask your
35 your systems administrator.
34 systems administrator.
36
35
37 This is the directory which holds the HTML version of the Python
36 This is the directory which holds the HTML version of the Python
38 manuals. Unfortunately it seems that different Linux distributions
37 manuals. Unfortunately it seems that different Linux distributions
@@ -40,8 +39,9 b' package these files differently, so you may have to look around a bit.'
40 Below I show the contents of this directory on my system for reference::
39 Below I show the contents of this directory on my system for reference::
41
40
42 [html]> ls
41 [html]> ls
43 about.dat acks.html dist/ ext/ index.html lib/ modindex.html
42 about.html dist/ icons/ lib/ python2.5.devhelp.gz whatsnew/
44 stdabout.dat tut/ about.html api/ doc/ icons/ inst/ mac/ ref/ style.css
43 acks.html doc/ index.html mac/ ref/
44 api/ ext/ inst/ modindex.html tut/
45
45
46 You should really make sure this variable is correctly set so that
46 You should really make sure this variable is correctly set so that
47 Python's pydoc-based help system works. It is a powerful and convenient
47 Python's pydoc-based help system works. It is a powerful and convenient
@@ -108,6 +108,8 b' The following terminals seem to handle the color sequences fine:'
108 support under cygwin, please post to the IPython mailing list so
108 support under cygwin, please post to the IPython mailing list so
109 this issue can be resolved for all users.
109 this issue can be resolved for all users.
110
110
111 .. _pyreadline: https://code.launchpad.net/pyreadline
112
111 These have shown problems:
113 These have shown problems:
112
114
113 * Windows command prompt in WinXP/2k logged into a Linux machine via
115 * Windows command prompt in WinXP/2k logged into a Linux machine via
@@ -157,13 +159,12 b' $HOME/.ipython/ipythonrc and set the colors option to the desired value.'
157 Object details (types, docstrings, source code, etc.)
159 Object details (types, docstrings, source code, etc.)
158 =====================================================
160 =====================================================
159
161
160 IPython has a set of special functions for studying the objects you
162 IPython has a set of special functions for studying the objects you are working
161 are working with, discussed in detail in Sec. `dynamic object
163 with, discussed in detail :ref:`here <dynamic_object_info>`. But this system
162 information`_. But this system relies on passing information which is
164 relies on passing information which is longer than your screen through a data
163 longer than your screen through a data pager, such as the common Unix
165 pager, such as the common Unix less and more programs. In order to be able to
164 less and more programs. In order to be able to see this information in
166 see this information in color, your pager needs to be properly configured. I
165 color, your pager needs to be properly configured. I strongly
167 strongly recommend using less instead of more, as it seems that more simply can
166 recommend using less instead of more, as it seems that more simply can
167 not understand colored text correctly.
168 not understand colored text correctly.
168
169
169 In order to configure less as your default pager, do the following:
170 In order to configure less as your default pager, do the following:
@@ -357,15 +357,19 b' This section outlines the various scenarios that we need to test before we relea'
357 Installation scenarios under Linux and OS X
357 Installation scenarios under Linux and OS X
358 -------------------------------------------
358 -------------------------------------------
359
359
360 1. Install from tarball using `python setup.py install`.
360 1. Install from tarball using ``python setup.py install``.
361 a. With only readline+nose dependencies installed.
361 a. With only readline+nose dependencies installed.
362 b. With all dependencies installed (readline, zope.interface,
362 b. With all dependencies installed (readline, zope.interface, Twisted,
363 Twisted, foolscap, Sphinx, nose, pyOpenSSL).
363 foolscap, Sphinx, nose, pyOpenSSL).
364
364 2. Install using easy_install.
365 2. Install using easy_install.
366
365 a. With only readline+nose dependencies installed.
367 a. With only readline+nose dependencies installed.
366 i. Default dependencies: `easy_install ipython-0.9.beta3-py2.5.egg`
368 i. Default dependencies: ``easy_install ipython-0.9.beta3-py2.5.egg``
367 ii. Optional dependency sets: `easy_install -f ipython-0.9.beta3-py2.5.egg IPython[kernel,doc,test,security]`
369 ii. Optional dependency sets: ``easy_install -f ipython-0.9.beta3-py2.5.egg IPython[kernel,doc,test,security]``
370
368 b. With all dependencies already installed.
371 b. With all dependencies already installed.
372
369
373
370 Installation scenarios under Win32
374 Installation scenarios under Win32
371 ----------------------------------
375 ----------------------------------
@@ -381,6 +385,7 b' Tests to run for these scenarios'
381 2. Start a controller and engines and try a few things by hand.
385 2. Start a controller and engines and try a few things by hand.
382 a. Using ipcluster.
386 a. Using ipcluster.
383 b. Using ipcontroller/ipengine by hand.
387 b. Using ipcontroller/ipengine by hand.
388
384 3. Run a few of the parallel examples.
389 3. Run a few of the parallel examples.
385 4. Try the kernel with and without security with and without PyOpenSSL
390 4. Try the kernel with and without security with and without PyOpenSSL
386 installed.
391 installed.
@@ -8,7 +8,7 b' IPython reference'
8
8
9 .. contents::
9 .. contents::
10
10
11 .. _Command line options:
11 .. _command_line_options:
12
12
13 Command-line usage
13 Command-line usage
14 ==================
14 ==================
@@ -288,12 +288,13 b' All options with a [no] prepended can be specified in negated form'
288 recursive inclusions.
288 recursive inclusions.
289
289
290 -prompt_in1, pi1 <string>
290 -prompt_in1, pi1 <string>
291 Specify the string used for input prompts. Note that if you
291
292 are using numbered prompts, the number is represented with a
292 Specify the string used for input prompts. Note that if you are using
293 '\#' in the string. Don't forget to quote strings with spaces
293 numbered prompts, the number is represented with a '\#' in the
294 embedded in them. Default: 'In [\#]:'. Sec. Prompts_
294 string. Don't forget to quote strings with spaces embedded in
295 discusses in detail all the available escapes to customize
295 them. Default: 'In [\#]:'. The :ref:`prompts section <prompts>`
296 your prompts.
296 discusses in detail all the available escapes to customize your
297 prompts.
297
298
298 -prompt_in2, pi2 <string>
299 -prompt_in2, pi2 <string>
299 Similar to the previous option, but used for the continuation
300 Similar to the previous option, but used for the continuation
@@ -2077,13 +2078,14 b' customizations.'
2077 Access to the standard Python help
2078 Access to the standard Python help
2078 ----------------------------------
2079 ----------------------------------
2079
2080
2080 As of Python 2.1, a help system is available with access to object
2081 As of Python 2.1, a help system is available with access to object docstrings
2081 docstrings and the Python manuals. Simply type 'help' (no quotes) to
2082 and the Python manuals. Simply type 'help' (no quotes) to access it. You can
2082 access it. You can also type help(object) to obtain information about a
2083 also type help(object) to obtain information about a given object, and
2083 given object, and help('keyword') for information on a keyword. As noted
2084 help('keyword') for information on a keyword. As noted :ref:`here
2084 in sec. `accessing help`_, you need to properly configure
2085 <accessing_help>`, you need to properly configure your environment variable
2085 your environment variable PYTHONDOCS for this feature to work correctly.
2086 PYTHONDOCS for this feature to work correctly.
2086
2087
2088 .. _dynamic_object_info:
2087
2089
2088 Dynamic object information
2090 Dynamic object information
2089 --------------------------
2091 --------------------------
@@ -2126,7 +2128,7 b' are not really defined as separate identifiers. Try for example typing'
2126 {}.get? or after doing import os, type os.path.abspath??.
2128 {}.get? or after doing import os, type os.path.abspath??.
2127
2129
2128
2130
2129 .. _Readline:
2131 .. _readline:
2130
2132
2131 Readline-based features
2133 Readline-based features
2132 -----------------------
2134 -----------------------
@@ -2240,10 +2242,9 b' explanation in your ipythonrc file.'
2240 Session logging and restoring
2242 Session logging and restoring
2241 -----------------------------
2243 -----------------------------
2242
2244
2243 You can log all input from a session either by starting IPython with
2245 You can log all input from a session either by starting IPython with the
2244 the command line switches -log or -logfile (see sec. `command line
2246 command line switches -log or -logfile (see :ref:`here <command_line_options>`)
2245 options`_) or by activating the logging at any moment with the magic
2247 or by activating the logging at any moment with the magic function %logstart.
2246 function %logstart.
2247
2248
2248 Log files can later be reloaded with the -logplay option and IPython
2249 Log files can later be reloaded with the -logplay option and IPython
2249 will attempt to 'replay' the log by executing all the lines in it, thus
2250 will attempt to 'replay' the log by executing all the lines in it, thus
@@ -2279,6 +2280,8 b' resume logging to a file which had previously been started with'
2279 %logstart. They will fail (with an explanation) if you try to use them
2280 %logstart. They will fail (with an explanation) if you try to use them
2280 before logging has been started.
2281 before logging has been started.
2281
2282
2283 .. _system_shell_access:
2284
2282 System shell access
2285 System shell access
2283 -------------------
2286 -------------------
2284
2287
@@ -2389,7 +2392,7 b" These features are basically a terminal version of Ka-Ping Yee's cgitb"
2389 module, now part of the standard Python library.
2392 module, now part of the standard Python library.
2390
2393
2391
2394
2392 .. _Input caching:
2395 .. _input_caching:
2393
2396
2394 Input caching system
2397 Input caching system
2395 --------------------
2398 --------------------
@@ -2429,7 +2432,7 b' sec. 6.2 <#sec:magic> for more details on the macro system.'
2429 A history function %hist allows you to see any part of your input
2432 A history function %hist allows you to see any part of your input
2430 history by printing a range of the _i variables.
2433 history by printing a range of the _i variables.
2431
2434
2432 .. _Output caching:
2435 .. _output_caching:
2433
2436
2434 Output caching system
2437 Output caching system
2435 ---------------------
2438 ---------------------
@@ -3034,7 +3037,7 b' which is being shared by the interactive IPython loop and your GUI'
3034 thread, you should really handle it with thread locking and
3037 thread, you should really handle it with thread locking and
3035 syncrhonization properties. The Python documentation discusses these.
3038 syncrhonization properties. The Python documentation discusses these.
3036
3039
3037 .. _Interactive demos:
3040 .. _interactive_demos:
3038
3041
3039 Interactive demos with IPython
3042 Interactive demos with IPython
3040 ==============================
3043 ==============================
@@ -3143,21 +3146,17 b' toolkits, including Tk, GTK and WXPython. It also provides a number of'
3143 commands useful for scientific computing, all with a syntax compatible
3146 commands useful for scientific computing, all with a syntax compatible
3144 with that of the popular Matlab program.
3147 with that of the popular Matlab program.
3145
3148
3146 IPython accepts the special option -pylab (Sec. `Command line
3149 IPython accepts the special option -pylab (see :ref:`here
3147 options`_). This configures it to support matplotlib, honoring the
3150 <command_line_options>`). This configures it to support matplotlib, honoring
3148 settings in the .matplotlibrc file. IPython will detect the user's
3151 the settings in the .matplotlibrc file. IPython will detect the user's choice
3149 choice of matplotlib GUI backend, and automatically select the proper
3152 of matplotlib GUI backend, and automatically select the proper threading model
3150 threading model to prevent blocking. It also sets matplotlib in
3153 to prevent blocking. It also sets matplotlib in interactive mode and modifies
3151 interactive mode and modifies %run slightly, so that any
3154 %run slightly, so that any matplotlib-based script can be executed using %run
3152 matplotlib-based script can be executed using %run and the final
3155 and the final show() command does not block the interactive shell.
3153 show() command does not block the interactive shell.
3156
3154
3157 The -pylab option must be given first in order for IPython to configure its
3155 The -pylab option must be given first in order for IPython to
3158 threading mode. However, you can still issue other options afterwards. This
3156 configure its threading mode. However, you can still issue other
3159 allows you to have a matplotlib-based environment customized with additional
3157 options afterwards. This allows you to have a matplotlib-based
3160 modules using the standard IPython profile mechanism (see :ref:`here
3158 environment customized with additional modules using the standard
3161 <profiles>`): ``ipython -pylab -p myprofile`` will load the profile defined in
3159 IPython profile mechanism (Sec. Profiles_): ''ipython -pylab -p
3162 ipythonrc-myprofile after configuring matplotlib.
3160 myprofile'' will load the profile defined in ipythonrc-myprofile after
3161 configuring matplotlib.
3162
3163
@@ -24,11 +24,11 b' Tab completion'
24 --------------
24 --------------
25
25
26 TAB-completion, especially for attributes, is a convenient way to explore the
26 TAB-completion, especially for attributes, is a convenient way to explore the
27 structure of any object you're dealing with. Simply type object_name.<TAB>
27 structure of any object you're dealing with. Simply type object_name.<TAB> and
28 and a list of the object's attributes will be printed (see readline_ for
28 a list of the object's attributes will be printed (see :ref:`the readline
29 more). Tab completion also works on file and directory names, which combined
29 section <readline>` for more). Tab completion also works on file and directory
30 with IPython's alias system allows you to do from within IPython many of the
30 names, which combined with IPython's alias system allows you to do from within
31 things you normally would need the system shell for.
31 IPython many of the things you normally would need the system shell for.
32
32
33 Explore your objects
33 Explore your objects
34 --------------------
34 --------------------
@@ -39,18 +39,18 b' constructor details for classes. The magic commands %pdoc, %pdef, %psource'
39 and %pfile will respectively print the docstring, function definition line,
39 and %pfile will respectively print the docstring, function definition line,
40 full source code and the complete file for any object (when they can be
40 full source code and the complete file for any object (when they can be
41 found). If automagic is on (it is by default), you don't need to type the '%'
41 found). If automagic is on (it is by default), you don't need to type the '%'
42 explicitly. See sec. `dynamic object information`_ for more.
42 explicitly. See :ref:`this section <dynamic_object_info>` for more.
43
43
44 The `%run` magic command
44 The `%run` magic command
45 ------------------------
45 ------------------------
46
46
47 The %run magic command allows you to run any python script and load all of
47 The %run magic command allows you to run any python script and load all of its
48 its data directly into the interactive namespace. Since the file is re-read
48 data directly into the interactive namespace. Since the file is re-read from
49 from disk each time, changes you make to it are reflected immediately (in
49 disk each time, changes you make to it are reflected immediately (in contrast
50 contrast to the behavior of import). I rarely use import for code I am
50 to the behavior of import). I rarely use import for code I am testing, relying
51 testing, relying on %run instead. See magic_ section for more on this and
51 on %run instead. See :ref:`this section <magic>` for more on this and other
52 other magic commands, or type the name of any magic command and ? to get
52 magic commands, or type the name of any magic command and ? to get details on
53 details on it. See also sec. dreload_ for a recursive reload command. %run
53 it. See also :ref:`this section <dreload>` for a recursive reload command. %run
54 also has special flags for timing the execution of your scripts (-t) and for
54 also has special flags for timing the execution of your scripts (-t) and for
55 executing them under the control of either Python's pdb debugger (-d) or
55 executing them under the control of either Python's pdb debugger (-d) or
56 profiler (-p). With all of these, %run can be used as the main tool for
56 profiler (-p). With all of these, %run can be used as the main tool for
@@ -60,21 +60,21 b' choice.'
60 Debug a Python script
60 Debug a Python script
61 ---------------------
61 ---------------------
62
62
63 Use the Python debugger, pdb. The %pdb command allows you to toggle on and
63 Use the Python debugger, pdb. The %pdb command allows you to toggle on and off
64 off the automatic invocation of an IPython-enhanced pdb debugger (with
64 the automatic invocation of an IPython-enhanced pdb debugger (with coloring,
65 coloring, tab completion and more) at any uncaught exception. The advantage
65 tab completion and more) at any uncaught exception. The advantage of this is
66 of this is that pdb starts inside the function where the exception occurred,
66 that pdb starts inside the function where the exception occurred, with all data
67 with all data still available. You can print variables, see code, execute
67 still available. You can print variables, see code, execute statements and even
68 statements and even walk up and down the call stack to track down the true
68 walk up and down the call stack to track down the true source of the problem
69 source of the problem (which often is many layers in the stack above where
69 (which often is many layers in the stack above where the exception gets
70 the exception gets triggered). Running programs with %run and pdb active can
70 triggered). Running programs with %run and pdb active can be an efficient to
71 be an efficient to develop and debug code, in many cases eliminating the need
71 develop and debug code, in many cases eliminating the need for print statements
72 for print statements or external debugging tools. I often simply put a 1/0 in
72 or external debugging tools. I often simply put a 1/0 in a place where I want
73 a place where I want to take a look so that pdb gets called, quickly view
73 to take a look so that pdb gets called, quickly view whatever variables I need
74 whatever variables I need to or test various pieces of code and then remove
74 to or test various pieces of code and then remove the 1/0. Note also that '%run
75 the 1/0. Note also that '%run -d' activates pdb and automatically sets
75 -d' activates pdb and automatically sets initial breakpoints for you to step
76 initial breakpoints for you to step through your code, watch variables, etc.
76 through your code, watch variables, etc. The :ref:`output caching section
77 See Sec. `Output caching`_ for details.
77 <output_caching>` has more details.
78
78
79 Use the output cache
79 Use the output cache
80 --------------------
80 --------------------
@@ -84,7 +84,8 b' and variables named _1, _2, etc. alias them. For example, the result of input'
84 line 4 is available either as Out[4] or as _4. Additionally, three variables
84 line 4 is available either as Out[4] or as _4. Additionally, three variables
85 named _, __ and ___ are always kept updated with the for the last three
85 named _, __ and ___ are always kept updated with the for the last three
86 results. This allows you to recall any previous result and further use it for
86 results. This allows you to recall any previous result and further use it for
87 new calculations. See Sec. `Output caching`_ for more.
87 new calculations. See :ref:`the output caching section <output_caching>` for
88 more.
88
89
89 Suppress output
90 Suppress output
90 ---------------
91 ---------------
@@ -102,7 +103,7 b' A similar system exists for caching input. All input is stored in a global'
102 list called In , so you can re-execute lines 22 through 28 plus line 34 by
103 list called In , so you can re-execute lines 22 through 28 plus line 34 by
103 typing 'exec In[22:29]+In[34]' (using Python slicing notation). If you need
104 typing 'exec In[22:29]+In[34]' (using Python slicing notation). If you need
104 to execute the same set of lines often, you can assign them to a macro with
105 to execute the same set of lines often, you can assign them to a macro with
105 the %macro function. See sec. `Input caching`_ for more.
106 the %macro function. See :ref:`here <input_caching>` for more.
106
107
107 Use your input history
108 Use your input history
108 ----------------------
109 ----------------------
@@ -134,17 +135,18 b' into Python variables.'
134 Use Python variables when calling the shell
135 Use Python variables when calling the shell
135 -------------------------------------------
136 -------------------------------------------
136
137
137 Expand python variables when calling the shell (either via '!' and '!!' or
138 Expand python variables when calling the shell (either via '!' and '!!' or via
138 via aliases) by prepending a $ in front of them. You can also expand complete
139 aliases) by prepending a $ in front of them. You can also expand complete
139 python expressions. See `System shell access`_ for more.
140 python expressions. See :ref:`our shell section <system_shell_access>` for
141 more details.
140
142
141 Use profiles
143 Use profiles
142 ------------
144 ------------
143
145
144 Use profiles to maintain different configurations (modules to load, function
146 Use profiles to maintain different configurations (modules to load, function
145 definitions, option settings) for particular tasks. You can then have
147 definitions, option settings) for particular tasks. You can then have
146 customized versions of IPython for specific purposes. See sec. profiles_ for
148 customized versions of IPython for specific purposes. :ref:`This section
147 more.
149 <profiles>` has more details.
148
150
149
151
150 Embed IPython in your programs
152 Embed IPython in your programs
@@ -152,7 +154,7 b' Embed IPython in your programs'
152
154
153 A few lines of code are enough to load a complete IPython inside your own
155 A few lines of code are enough to load a complete IPython inside your own
154 programs, giving you the ability to work with your data interactively after
156 programs, giving you the ability to work with your data interactively after
155 automatic processing has been completed. See sec. embedding_ for more.
157 automatic processing has been completed. See :ref:`here <embedding>` for more.
156
158
157 Use the Python profiler
159 Use the Python profiler
158 -----------------------
160 -----------------------
@@ -166,8 +168,8 b' Use IPython to present interactive demos'
166 ----------------------------------------
168 ----------------------------------------
167
169
168 Use the IPython.demo.Demo class to load any Python script as an interactive
170 Use the IPython.demo.Demo class to load any Python script as an interactive
169 demo. With a minimal amount of simple markup, you can control the execution
171 demo. With a minimal amount of simple markup, you can control the execution of
170 of the script, stopping as needed. See sec. `interactive demos`_ for more.
172 the script, stopping as needed. See :ref:`here <interactive_demos>` for more.
171
173
172 Run doctests
174 Run doctests
173 ------------
175 ------------
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