IDLE is Python’s Integrated Development and Learning Environment.
IDLE has the following features:
coded in 100% pure Python, using the tkinter GUI toolkit
cross-platform: works mostly the same on Windows, Unix, and macOS
Python shell window (interactive interpreter) with colorizing of code input, output, and error messages
In this section, ‘C’ refers to the Control key on Windows and Unix and -the Command key on macOS.
+The IDLE insertion cursor is a thin vertical bar between character +positions. When characters are entered, the insertion cursor and +everything to its right moves right one character and +the new character is entered in the new space.
+Several non-character keys move the cursor and possibly +delete characters. Deletion does not puts text on the clipboard, +but IDLE has an undo list. Wherever this doc discusses keys, +‘C’ refers to the Control key on Windows and +Unix and the Command key on macOS. (And all such dicussions +assume that the keys have not been re-bound to something else.)
Backspace deletes to the left; Del deletes to the right
C-Backspace delete word left; C-Del delete word to the right
Arrow keys and Page Up/Page Down to move around
C-LeftArrow and C-RightArrow moves by words
Home/End go to begin/end of line
C-Home/C-End go to begin/end of file
Some useful Emacs bindings are inherited from Tcl/Tk:
-C-a beginning of line
C-e end of line
C-k kill line (but doesn’t put it in clipboard)
C-l center window around the insertion point
C-b go backward one character without deleting (usually you can -also use the cursor key for this)
C-f go forward one character without deleting (usually you can -also use the cursor key for this)
C-p go up one line (usually you can also use the cursor key for -this)
C-d delete next character
Arrow keys move the cursor one character or line.
C-LeftArrow and C-RightArrow moves left or right one word.
Home and End go to the beginning or end of the line.
Page Up and Page Down go up or down one screen.
C-Home and C-End go to beginning or end of the file.
Backspace and Del (or C-d) delete the previous or +next character.
C-Backspace and C-Del delete one word left or right.
C-k deletes (‘kills’) everything to the right.
Standard keybindings (like C-c to copy and C-v to paste) may work. Keybindings are selected in the Configure IDLE dialog.
@@ -697,20 +692,15 @@C-d sends end-of-file; closes window if typed at a >>> prompt
Alt-/ (Expand word) is also useful to reduce typing
-Command history
+code interactively. IDLE’s Shell window also responds to the following:Alt-p retrieves previous command matching what you have typed. On -macOS use C-p.
Alt-n retrieves next. On macOS use C-n.
Return while the cursor is on any previous command -retrieves that command
C-c attemps to interrupt statement execution (but may fail).
C-d closes Shell if typed at a >>> prompt.
Alt-p and Alt-n (C-p and C-n on macOS) +retrieve to the current prompt the previous or next previously +entered statement that matches anything already typed.
Return while the cursor is on any previous statement +appends the latter to anything already typed at the prompt.