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+[See end for tips.]
+
+Click on the dotted line at the top of a menu to "tear it off": a
+separate window containing the menu is created.
+
+File menu:
+
+ New window -- create a new editing window
+ Open... -- open an existing file
+ Open module... -- open an existing module (searches sys.path)
+ Class browser -- show classes and methods in current file
+ Path browser -- show sys.path directories, modules, classes
+ and methods
+ ---
+ Save -- save current window to the associated file (unsaved
+ windows have a * before and after the window title)
+
+ Save As... -- save current window to new file, which becomes
+ the associated file
+ Save Copy As... -- save current window to different file
+ without changing the associated file
+ ---
+ Close -- close current window (asks to save if unsaved)
+ Exit -- close all windows and quit IDLE (asks to save if unsaved)
+
+Edit menu:
+
+ Undo -- Undo last change to current window (max 1000 changes)
+ Redo -- Redo last undone change to current window
+ ---
+ Cut -- Copy selection into system-wide clipboard; then delete selection
+ Copy -- Copy selection into system-wide clipboard
+ Paste -- Insert system-wide clipboard into window
+ Select All -- Select the entire contents of the edit buffer
+ ---
+ Find... -- Open a search dialog box with many options
+ Find again -- Repeat last search
+ Find selection -- Search for the string in the selection
+ Find in Files... -- Open a search dialog box for searching files
+ Replace... -- Open a search-and-replace dialog box
+ Go to line -- Ask for a line number and show that line
+ ---
+ Indent region -- Shift selected lines right 4 spaces
+ Dedent region -- Shift selected lines left 4 spaces
+ Comment out region -- Insert ## in front of selected lines
+ Uncomment region -- Remove leading # or ## from selected lines
+ Tabify region -- Turns *leading* stretches of spaces into tabs
+ Untabify region -- Turn *all* tabs into the right number of spaces
+ Expand word -- Expand the word you have typed to match another
+ word in the same buffer; repeat to get a different expansion
+ Format Paragraph -- Reformat the current blank-line-separated paragraph
+ ---
+ Import module -- Import or reload the current module
+ Run script -- Execute the current file in the __main__ namespace
+
+Windows menu:
+
+ Zoom Height -- toggles the window between normal size (24x80)
+ and maximum height.
+ ---
+ The rest of this menu lists the names of all open windows;
+ select one to bring it to the foreground (deiconifying it if
+ necessary).
+
+Debug menu (in the Python Shell window only):
+
+ Go to file/line -- look around the insert point for a filename
+ and linenumber, open the file, and show the line
+ Open stack viewer -- show the stack traceback of the last exception
+ Debugger toggle -- Run commands in the shell under the debugger
+ JIT Stack viewer toggle -- Open stack viewer on traceback
+
+Basic editing and navigation:
+
+ Backspace deletes to the left; DEL deletes to the right
+ Arrow keys and Page Up/Down to move around
+ Home/End go to begin/end of line
+ Control-Home/End go to begin/end of file
+ Some Emacs bindings may also work, e.g. ^B/^P/^A/^E/^D/^L
+
+Automatic indentation:
+
+ After a block-opening statement, the next line is indented by
+ 4 spaces (in the Python Shell window by one tab). After
+ certain keywords (break, return etc.) the next line is
+ dedented. In leading indentation, Backspace deletes up to 4
+ spaces if they are there. Tab inserts 1-4 spaces (in the
+ Python Shell window one tab). See also the indent/dedent
+ region commands in the edit menu.
+
+Python Shell window:
+
+ ^C interrupts executing command
+ ^D sends end-of-file; closes window if typed at >>> prompt
+
+ Command history:
+
+ Alt-p retrieves previous command matching what you have typed
+ Alt-n retrieves next
+ Return while on any previous command retrieves that command
+ Alt-/ (Expand word) is also useful here
+
+Syntax colors:
+
+ The coloring is applied in a background "thread", so you may
+ occasionally see uncolorized text. To change the color
+ scheme, edit the ColorPrefs class in IdlePrefs.py.
+
+ Python syntax colors:
+
+ Keywords orange
+ Strings green
+ Comments red
+ Definitions blue
+
+ Shell colors:
+
+ Console output brown
+ stdout blue
+ stderr dark green
+ stdin black
+
+Other preferences:
+
+ To change the font on Windows, open EditorWindow.py and change
+ text['font'] = ("lucida console", 8)
+ to, e.g.,
+ text['font'] = ("courier new", 10)
+
+ To change keyboard bindings, edit Bindings.py
+
+Command line usage:
+
+ idle.py [-c command] [-d] [-e] [-s] [-t title] [arg] ...
+
+ -c command run this command
+ -d enable debugger
+ -e edit mode; arguments are files to be edited
+ -s run $IDLESTARTUP or $PYTHONSTARTUP first
+ -t title set title of shell window
+
+ If there are arguments:
+
+ If -e is used, arguments are files opened for editing and
+ sys.argv reflects the arguments passed to IDLE itself.
+
+ Otherwise, if -c is used, all arguments are placed in
+ sys.argv[1:...], with sys.argv[0] set to '-c'.
+
+ Otherwise, if neither -e nor -c is used, the first
+ argument is a script which is executed with the remaining
+ arguments in sys.argv[1:...] and sys.argv[0] set to the
+ script name. If the script name is '-', no script is
+ executed but an interactive Python session is started; the
+ arguments are still available in sys.argv.