cpython/Lib/idlelib/help.txt

207 lines
7.6 KiB
Plaintext

[See the end of this file for ** TIPS ** on using IDLE !!]
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
Recent Files... -- Open a list of recent files
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
---
Print Window -- Print the current window
---
Close -- Close current window (asks to save if unsaved)
Exit -- Close all windows, quit (asks to save if unsaved)
Edit Menu:
Undo -- Undo last change to current window
(A maximum of 1000 changes may be undone)
Redo -- Redo last undone change to current window
---
Cut -- Copy a selection into system-wide clipboard,
then delete the 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
Expand Word -- Expand the word you have typed to match another
word in the same buffer; repeat to get a
different expansion
Format Menu (only in Edit window):
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
New Indent Width... -- Open dialog to change indent width
Format Paragraph -- Reformat the current blank-line-separated
paragraph
Run Menu (only in Edit window):
Python Shell -- Open or wake up the Python shell window
---
Check Module -- Run a syntax check on the module
Run Module -- Execute the current file in the __main__ namespace
Shell Menu (only in Shell window):
View Last Restart -- Scroll the shell window to the last restart
Restart Shell -- Restart the interpreter with a fresh environment
Debug Menu (only in Shell window):
Go to File/Line -- look around the insert point for a filename
and linenumber, open the file, and show the line
Debugger (toggle) -- Run commands in the shell under the debugger
Stack Viewer -- Show the stack traceback of the last exception
Auto-open Stack Viewer (toggle) -- Open stack viewer on traceback
Options Menu:
Configure IDLE -- Open a configuration dialog. Fonts, indentation,
keybindings, and color themes may be altered.
Startup Preferences may be set, and Additional Help
Souces can be specified.
---
Revert to Default Settings -- Restore original settings. Not
currently implemented - simply delete
your .idlerc file.
Windows Menu:
Zoom Height -- toggles the window between configured size
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).
Help Menu:
About IDLE -- Version, copyright, license, credits
IDLE Readme -- Background discussion and change details
---
IDLE Help -- Display this file
Python Docs -- Access local Python documentation, if
installed. Otherwise, access www.python.org.
---
(Additional Help Sources may be added here)
** TIPS **
==========
Additional Help Sources:
Windows users can Google on pythlp.chm and zopeshelf.chm to access help
files in the Windows help format. The Additional Help Sources feature
of the configuration GUI supports .chm, along with any other filetypes
supported by your browser. Supply a Menu Item title, and enter the
location in the Help File Path slot of the New Help Source dialog. Use
http:// and/or www. to identify external URLs, or download the file and
browse for its path on your machine using the Browse button.
All users can access the extensive sources of help, including
tutorials, available at www.python.org/doc. Selected URLs can be added
or removed from the Help menu at any time using Configure IDLE.
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 or standard Windows bindings may work.
Keybindings are selected in the Settings Dialog, look there.
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 spaces (in the
Python Shell window one tab), number depends on Indent Width.
(N.B. Currently tabs are restricted to four spaces due to Tcl/Tk
issues.)
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, use the Settings/Highlighting dialog.
Python default syntax colors:
Keywords orange
Strings green
Comments red
Definitions blue
Shell default colors:
Console output brown
stdout blue
stderr dark green
stdin black
Other preferences:
The font preferences, keybinding, and startup preferences can
be changed using the Settings dialog.
Command line usage:
Enter idle -h at the command prompt to get a usage message.
Running without a subprocess:
If IDLE is started with the -n command line switch it will run in a
single process and will not create the subprocess which runs the RPC
Python execution server. This can be useful if Python cannot create
the subprocess or the RPC socket interface on your platform. However,
in this mode user code is not isolated from IDLE itself. Also, the
environment is not restarted when Run/Run Module (F5) is selected. If
your code has been modified, you must reload() the affected modules and
re-import any specific items (e.g. from foo import baz) if the changes
are to take effect. For these reasons, it is preferable to run IDLE
with the default subprocess if at all possible.