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  &lt;div class=&quot;section&quot; id=&quot;idle&quot;&gt;
&lt;span id=&quot;id1&quot;&gt;&lt;/span&gt;&lt;h1&gt;24.6. IDLE&lt;a class=&quot;headerlink&quot; href=&quot;#idle&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h1&gt;
&lt;p id=&quot;index-0&quot;&gt;IDLE is the Python IDE built with the &lt;tt class=&quot;xref py py-mod docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;tkinter&lt;/span&gt;&lt;/tt&gt; GUI toolkit.&lt;/p&gt;
&lt;p&gt;IDLE has the following features:&lt;/p&gt;
&lt;ul class=&quot;simple&quot;&gt;
&lt;li&gt;coded in 100% pure Python, using the &lt;tt class=&quot;xref py py-mod docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;tkinter&lt;/span&gt;&lt;/tt&gt; GUI toolkit&lt;/li&gt;
&lt;li&gt;cross-platform: works on Windows and Unix&lt;/li&gt;
&lt;li&gt;multi-window text editor with multiple undo, Python colorizing and many other
features, e.g. smart indent and call tips&lt;/li&gt;
&lt;li&gt;Python shell window (a.k.a. interactive interpreter)&lt;/li&gt;
&lt;li&gt;debugger (not complete, but you can set breakpoints, view  and step)&lt;/li&gt;
&lt;/ul&gt;
&lt;div class=&quot;section&quot; id=&quot;menus&quot;&gt;
&lt;h2&gt;24.6.1. Menus&lt;a class=&quot;headerlink&quot; href=&quot;#menus&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h2&gt;
&lt;div class=&quot;section&quot; id=&quot;file-menu&quot;&gt;
&lt;h3&gt;24.6.1.1. File menu&lt;a class=&quot;headerlink&quot; href=&quot;#file-menu&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h3&gt;
&lt;dl class=&quot;docutils&quot;&gt;
&lt;dt&gt;New window&lt;/dt&gt;
&lt;dd&gt;create a new editing window&lt;/dd&gt;
&lt;dt&gt;Open...&lt;/dt&gt;
&lt;dd&gt;open an existing file&lt;/dd&gt;
&lt;dt&gt;Open module...&lt;/dt&gt;
&lt;dd&gt;open an existing module (searches sys.path)&lt;/dd&gt;
&lt;dt&gt;Class browser&lt;/dt&gt;
&lt;dd&gt;show classes and methods in current file&lt;/dd&gt;
&lt;dt&gt;Path browser&lt;/dt&gt;
&lt;dd&gt;show sys.path directories, modules, classes and methods&lt;/dd&gt;
&lt;/dl&gt;
&lt;dl class=&quot;docutils&quot; id=&quot;index-1&quot;&gt;
&lt;dt&gt;Save&lt;/dt&gt;
&lt;dd&gt;save current window to the associated file (unsaved windows have a * before and
after the window title)&lt;/dd&gt;
&lt;dt&gt;Save As...&lt;/dt&gt;
&lt;dd&gt;save current window to new file, which becomes the associated file&lt;/dd&gt;
&lt;dt&gt;Save Copy As...&lt;/dt&gt;
&lt;dd&gt;save current window to different file without changing the associated file&lt;/dd&gt;
&lt;dt&gt;Close&lt;/dt&gt;
&lt;dd&gt;close current window (asks to save if unsaved)&lt;/dd&gt;
&lt;dt&gt;Exit&lt;/dt&gt;
&lt;dd&gt;close all windows and quit IDLE (asks to save if unsaved)&lt;/dd&gt;
&lt;/dl&gt;
&lt;/div&gt;
&lt;div class=&quot;section&quot; id=&quot;edit-menu&quot;&gt;
&lt;h3&gt;24.6.1.2. Edit menu&lt;a class=&quot;headerlink&quot; href=&quot;#edit-menu&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h3&gt;
&lt;dl class=&quot;docutils&quot;&gt;
&lt;dt&gt;Undo&lt;/dt&gt;
&lt;dd&gt;Undo last change to current window (max 1000 changes)&lt;/dd&gt;
&lt;dt&gt;Redo&lt;/dt&gt;
&lt;dd&gt;Redo last undone change to current window&lt;/dd&gt;
&lt;dt&gt;Cut&lt;/dt&gt;
&lt;dd&gt;Copy selection into system-wide clipboard; then delete selection&lt;/dd&gt;
&lt;dt&gt;Copy&lt;/dt&gt;
&lt;dd&gt;Copy selection into system-wide clipboard&lt;/dd&gt;
&lt;dt&gt;Paste&lt;/dt&gt;
&lt;dd&gt;Insert system-wide clipboard into window&lt;/dd&gt;
&lt;dt&gt;Select All&lt;/dt&gt;
&lt;dd&gt;Select the entire contents of the edit buffer&lt;/dd&gt;
&lt;dt&gt;Find...&lt;/dt&gt;
&lt;dd&gt;Open a search dialog box with many options&lt;/dd&gt;
&lt;dt&gt;Find again&lt;/dt&gt;
&lt;dd&gt;Repeat last search&lt;/dd&gt;
&lt;dt&gt;Find selection&lt;/dt&gt;
&lt;dd&gt;Search for the string in the selection&lt;/dd&gt;
&lt;dt&gt;Find in Files...&lt;/dt&gt;
&lt;dd&gt;Open a search dialog box for searching files&lt;/dd&gt;
&lt;dt&gt;Replace...&lt;/dt&gt;
&lt;dd&gt;Open a search-and-replace dialog box&lt;/dd&gt;
&lt;dt&gt;Go to line&lt;/dt&gt;
&lt;dd&gt;Ask for a line number and show that line&lt;/dd&gt;
&lt;dt&gt;Indent region&lt;/dt&gt;
&lt;dd&gt;Shift selected lines right 4 spaces&lt;/dd&gt;
&lt;dt&gt;Dedent region&lt;/dt&gt;
&lt;dd&gt;Shift selected lines left 4 spaces&lt;/dd&gt;
&lt;dt&gt;Comment out region&lt;/dt&gt;
&lt;dd&gt;Insert ## in front of selected lines&lt;/dd&gt;
&lt;dt&gt;Uncomment region&lt;/dt&gt;
&lt;dd&gt;Remove leading # or ## from selected lines&lt;/dd&gt;
&lt;dt&gt;Tabify region&lt;/dt&gt;
&lt;dd&gt;Turns &lt;em&gt;leading&lt;/em&gt; stretches of spaces into tabs&lt;/dd&gt;
&lt;dt&gt;Untabify region&lt;/dt&gt;
&lt;dd&gt;Turn &lt;em&gt;all&lt;/em&gt; tabs into the right number of spaces&lt;/dd&gt;
&lt;dt&gt;Expand word&lt;/dt&gt;
&lt;dd&gt;Expand the word you have typed to match another word in the same buffer; repeat
to get a different expansion&lt;/dd&gt;
&lt;dt&gt;Format Paragraph&lt;/dt&gt;
&lt;dd&gt;Reformat the current blank-line-separated paragraph&lt;/dd&gt;
&lt;dt&gt;Import module&lt;/dt&gt;
&lt;dd&gt;Import or reload the current module&lt;/dd&gt;
&lt;dt&gt;Run script&lt;/dt&gt;
&lt;dd&gt;Execute the current file in the __main__ namespace&lt;/dd&gt;
&lt;/dl&gt;
&lt;/div&gt;
&lt;div class=&quot;section&quot; id=&quot;windows-menu&quot;&gt;
&lt;span id=&quot;index-2&quot;&gt;&lt;/span&gt;&lt;h3&gt;24.6.1.3. Windows menu&lt;a class=&quot;headerlink&quot; href=&quot;#windows-menu&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h3&gt;
&lt;dl class=&quot;docutils&quot;&gt;
&lt;dt&gt;Zoom Height&lt;/dt&gt;
&lt;dd&gt;toggles the window between normal size (24x80) and maximum height.&lt;/dd&gt;
&lt;/dl&gt;
&lt;p&gt;The rest of this menu lists the names of all open windows; select one to bring
it to the foreground (deiconifying it if necessary).&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;section&quot; id=&quot;debug-menu&quot;&gt;
&lt;h3&gt;24.6.1.4. Debug menu&lt;a class=&quot;headerlink&quot; href=&quot;#debug-menu&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h3&gt;
&lt;ul class=&quot;simple&quot;&gt;
&lt;li&gt;in the Python Shell window only&lt;/li&gt;
&lt;/ul&gt;
&lt;dl class=&quot;docutils&quot;&gt;
&lt;dt&gt;Go to file/line&lt;/dt&gt;
&lt;dd&gt;Look around the insert point for a filename and line number, open the file,
and show the line.  Useful to view the source lines referenced in an
exception traceback.&lt;/dd&gt;
&lt;dt&gt;Debugger&lt;/dt&gt;
&lt;dd&gt;Run commands in the shell under the debugger.&lt;/dd&gt;
&lt;dt&gt;Stack viewer&lt;/dt&gt;
&lt;dd&gt;Show the stack traceback of the last exception.&lt;/dd&gt;
&lt;dt&gt;Auto-open Stack Viewer&lt;/dt&gt;
&lt;dd&gt;Open stack viewer on traceback.&lt;/dd&gt;
&lt;/dl&gt;
&lt;/div&gt;
&lt;div class=&quot;section&quot; id=&quot;edit-context-menu&quot;&gt;
&lt;span id=&quot;index-3&quot;&gt;&lt;/span&gt;&lt;h3&gt;24.6.1.5. Edit context menu&lt;a class=&quot;headerlink&quot; href=&quot;#edit-context-menu&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h3&gt;
&lt;ul class=&quot;simple&quot;&gt;
&lt;li&gt;Right-click in Edit window (Control-click on OS X)&lt;/li&gt;
&lt;/ul&gt;
&lt;dl class=&quot;docutils&quot;&gt;
&lt;dt&gt;Cut&lt;/dt&gt;
&lt;dd&gt;Copy selection into system-wide clipboard; then delete selection&lt;/dd&gt;
&lt;dt&gt;Copy&lt;/dt&gt;
&lt;dd&gt;Copy selection into system-wide clipboard&lt;/dd&gt;
&lt;dt&gt;Paste&lt;/dt&gt;
&lt;dd&gt;Insert system-wide clipboard into window&lt;/dd&gt;
&lt;dt&gt;Set Breakpoint&lt;/dt&gt;
&lt;dd&gt;Sets a breakpoint.  Breakpoints are only enabled when the debugger is open.&lt;/dd&gt;
&lt;dt&gt;Clear Breakpoint&lt;/dt&gt;
&lt;dd&gt;Clears the breakpoint on that line.&lt;/dd&gt;
&lt;/dl&gt;
&lt;/div&gt;
&lt;div class=&quot;section&quot; id=&quot;shell-context-menu&quot;&gt;
&lt;span id=&quot;index-4&quot;&gt;&lt;/span&gt;&lt;h3&gt;24.6.1.6. Shell context menu&lt;a class=&quot;headerlink&quot; href=&quot;#shell-context-menu&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h3&gt;
&lt;ul class=&quot;simple&quot;&gt;
&lt;li&gt;Right-click in Python Shell window (Control-click on OS X)&lt;/li&gt;
&lt;/ul&gt;
&lt;dl class=&quot;docutils&quot;&gt;
&lt;dt&gt;Cut&lt;/dt&gt;
&lt;dd&gt;Copy selection into system-wide clipboard; then delete selection&lt;/dd&gt;
&lt;dt&gt;Copy&lt;/dt&gt;
&lt;dd&gt;Copy selection into system-wide clipboard&lt;/dd&gt;
&lt;dt&gt;Paste&lt;/dt&gt;
&lt;dd&gt;Insert system-wide clipboard into window&lt;/dd&gt;
&lt;dt&gt;Go to file/line&lt;/dt&gt;
&lt;dd&gt;Same as in Debug menu.&lt;/dd&gt;
&lt;/dl&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;section&quot; id=&quot;basic-editing-and-navigation&quot;&gt;
&lt;h2&gt;24.6.2. Basic editing and navigation&lt;a class=&quot;headerlink&quot; href=&quot;#basic-editing-and-navigation&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h2&gt;
&lt;ul class=&quot;simple&quot;&gt;
&lt;li&gt;&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Backspace&lt;/span&gt;&lt;/tt&gt; deletes to the left; &lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Del&lt;/span&gt;&lt;/tt&gt; deletes to the right&lt;/li&gt;
&lt;li&gt;Arrow keys and &lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Page&lt;/span&gt; &lt;span class=&quot;pre&quot;&gt;Up&lt;/span&gt;&lt;/tt&gt;/&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Page&lt;/span&gt; &lt;span class=&quot;pre&quot;&gt;Down&lt;/span&gt;&lt;/tt&gt; to move around&lt;/li&gt;
&lt;li&gt;&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Home&lt;/span&gt;&lt;/tt&gt;/&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;End&lt;/span&gt;&lt;/tt&gt; go to begin/end of line&lt;/li&gt;
&lt;li&gt;&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;C-Home&lt;/span&gt;&lt;/tt&gt;/&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;C-End&lt;/span&gt;&lt;/tt&gt; go to begin/end of file&lt;/li&gt;
&lt;li&gt;Some &lt;strong class=&quot;program&quot;&gt;Emacs&lt;/strong&gt; bindings may also work, including &lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;C-B&lt;/span&gt;&lt;/tt&gt;,
&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;C-P&lt;/span&gt;&lt;/tt&gt;, &lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;C-A&lt;/span&gt;&lt;/tt&gt;, &lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;C-E&lt;/span&gt;&lt;/tt&gt;, &lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;C-D&lt;/span&gt;&lt;/tt&gt;, &lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;C-L&lt;/span&gt;&lt;/tt&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;div class=&quot;section&quot; id=&quot;automatic-indentation&quot;&gt;
&lt;h3&gt;24.6.2.1. Automatic indentation&lt;a class=&quot;headerlink&quot; href=&quot;#automatic-indentation&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h3&gt;
&lt;p&gt;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, &lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Backspace&lt;/span&gt;&lt;/tt&gt; deletes up
to 4 spaces if they are there. &lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Tab&lt;/span&gt;&lt;/tt&gt; inserts 1-4 spaces (in the Python
Shell window one tab). See also the indent/dedent region commands in the edit
menu.&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;section&quot; id=&quot;python-shell-window&quot;&gt;
&lt;h3&gt;24.6.2.2. Python Shell window&lt;a class=&quot;headerlink&quot; href=&quot;#python-shell-window&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h3&gt;
&lt;ul class=&quot;simple&quot;&gt;
&lt;li&gt;&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;C-C&lt;/span&gt;&lt;/tt&gt; interrupts executing command&lt;/li&gt;
&lt;li&gt;&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;C-D&lt;/span&gt;&lt;/tt&gt; sends end-of-file; closes window if typed at a &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;&amp;gt;&amp;gt;&amp;gt;&lt;/span&gt;&lt;/tt&gt; prompt&lt;/li&gt;
&lt;li&gt;&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Alt-p&lt;/span&gt;&lt;/tt&gt; retrieves previous command matching what you have typed&lt;/li&gt;
&lt;li&gt;&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Alt-n&lt;/span&gt;&lt;/tt&gt; retrieves next&lt;/li&gt;
&lt;li&gt;&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Return&lt;/span&gt;&lt;/tt&gt; while on any previous command retrieves that command&lt;/li&gt;
&lt;li&gt;&lt;tt class=&quot;kbd docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Alt-/&lt;/span&gt;&lt;/tt&gt; (Expand word) is also useful here&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;section&quot; id=&quot;syntax-colors&quot;&gt;
&lt;span id=&quot;index-5&quot;&gt;&lt;/span&gt;&lt;h2&gt;24.6.3. Syntax colors&lt;a class=&quot;headerlink&quot; href=&quot;#syntax-colors&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h2&gt;
&lt;p&gt;The coloring is applied in a background &amp;#8220;thread,&amp;#8221; so you may occasionally see
uncolorized text.  To change the color scheme, edit the &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;[Colors]&lt;/span&gt;&lt;/tt&gt; section in
&lt;tt class=&quot;file docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;config.txt&lt;/span&gt;&lt;/tt&gt;.&lt;/p&gt;
&lt;dl class=&quot;docutils&quot;&gt;
&lt;dt&gt;Python syntax colors:&lt;/dt&gt;
&lt;dd&gt;&lt;dl class=&quot;first last docutils&quot;&gt;
&lt;dt&gt;Keywords&lt;/dt&gt;
&lt;dd&gt;orange&lt;/dd&gt;
&lt;dt&gt;Strings&lt;/dt&gt;
&lt;dd&gt;green&lt;/dd&gt;
&lt;dt&gt;Comments&lt;/dt&gt;
&lt;dd&gt;red&lt;/dd&gt;
&lt;dt&gt;Definitions&lt;/dt&gt;
&lt;dd&gt;blue&lt;/dd&gt;
&lt;/dl&gt;
&lt;/dd&gt;
&lt;dt&gt;Shell colors:&lt;/dt&gt;
&lt;dd&gt;&lt;dl class=&quot;first last docutils&quot;&gt;
&lt;dt&gt;Console output&lt;/dt&gt;
&lt;dd&gt;brown&lt;/dd&gt;
&lt;dt&gt;stdout&lt;/dt&gt;
&lt;dd&gt;blue&lt;/dd&gt;
&lt;dt&gt;stderr&lt;/dt&gt;
&lt;dd&gt;dark green&lt;/dd&gt;
&lt;dt&gt;stdin&lt;/dt&gt;
&lt;dd&gt;black&lt;/dd&gt;
&lt;/dl&gt;
&lt;/dd&gt;
&lt;/dl&gt;
&lt;/div&gt;
&lt;div class=&quot;section&quot; id=&quot;startup&quot;&gt;
&lt;h2&gt;24.6.4. Startup&lt;a class=&quot;headerlink&quot; href=&quot;#startup&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h2&gt;
&lt;p&gt;Upon startup with the &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;-s&lt;/span&gt;&lt;/tt&gt; option, IDLE will execute the file referenced by
the environment variables &lt;span class=&quot;target&quot; id=&quot;index-6&quot;&gt;&lt;/span&gt;&lt;tt class=&quot;xref std std-envvar docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;IDLESTARTUP&lt;/span&gt;&lt;/tt&gt; or &lt;span class=&quot;target&quot; id=&quot;index-7&quot;&gt;&lt;/span&gt;&lt;a class=&quot;reference internal&quot; href=&quot;../using/cmdline.html#envvar-PYTHONSTARTUP&quot;&gt;&lt;tt class=&quot;xref std std-envvar docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;PYTHONSTARTUP&lt;/span&gt;&lt;/tt&gt;&lt;/a&gt;.
Idle first checks for &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;IDLESTARTUP&lt;/span&gt;&lt;/tt&gt;; if &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;IDLESTARTUP&lt;/span&gt;&lt;/tt&gt; is present the file
referenced is run.  If &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;IDLESTARTUP&lt;/span&gt;&lt;/tt&gt; is not present, Idle checks for
&lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;PYTHONSTARTUP&lt;/span&gt;&lt;/tt&gt;.  Files referenced by these environment variables are
convenient places to store functions that are used frequently from the Idle
shell, or for executing import statements to import common modules.&lt;/p&gt;
&lt;p&gt;In addition, &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;Tk&lt;/span&gt;&lt;/tt&gt; also loads a startup file if it is present.  Note that the
Tk file is loaded unconditionally.  This additional file is &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;.Idle.py&lt;/span&gt;&lt;/tt&gt; and is
looked for in the user&amp;#8217;s home directory.  Statements in this file will be
executed in the Tk namespace, so this file is not useful for importing functions
to be used from Idle&amp;#8217;s Python shell.&lt;/p&gt;
&lt;div class=&quot;section&quot; id=&quot;command-line-usage&quot;&gt;
&lt;h3&gt;24.6.4.1. Command line usage&lt;a class=&quot;headerlink&quot; href=&quot;#command-line-usage&quot; title=&quot;Permalink to this headline&quot;&gt;¶&lt;/a&gt;&lt;/h3&gt;
&lt;div class=&quot;highlight-python&quot;&gt;&lt;pre&gt;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&lt;/pre&gt;
&lt;/div&gt;
&lt;p&gt;If there are arguments:&lt;/p&gt;
&lt;ol class=&quot;arabic simple&quot;&gt;
&lt;li&gt;If &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;-e&lt;/span&gt;&lt;/tt&gt; is used, arguments are files opened for editing and
&lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;sys.argv&lt;/span&gt;&lt;/tt&gt; reflects the arguments passed to IDLE itself.&lt;/li&gt;
&lt;li&gt;Otherwise, if &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;-c&lt;/span&gt;&lt;/tt&gt; is used, all arguments are placed in
&lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;sys.argv[1:...]&lt;/span&gt;&lt;/tt&gt;, with &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;sys.argv[0]&lt;/span&gt;&lt;/tt&gt; set to &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;'-c'&lt;/span&gt;&lt;/tt&gt;.&lt;/li&gt;
&lt;li&gt;Otherwise, if neither &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;-e&lt;/span&gt;&lt;/tt&gt; nor &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;-c&lt;/span&gt;&lt;/tt&gt; is used, the first
argument is a script which is executed with the remaining arguments in
&lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;sys.argv[1:...]&lt;/span&gt;&lt;/tt&gt;  and &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;sys.argv[0]&lt;/span&gt;&lt;/tt&gt; set to the script name.  If the script
name is &amp;#8216;-&amp;#8216;, no script is executed but an interactive Python session is started;
the arguments are still available in &lt;tt class=&quot;docutils literal&quot;&gt;&lt;span class=&quot;pre&quot;&gt;sys.argv&lt;/span&gt;&lt;/tt&gt;.&lt;/li&gt;
&lt;/ol&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;


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  &lt;ul&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#&quot;&gt;24.6. IDLE&lt;/a&gt;&lt;ul&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#menus&quot;&gt;24.6.1. Menus&lt;/a&gt;&lt;ul&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#file-menu&quot;&gt;24.6.1.1. File menu&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#edit-menu&quot;&gt;24.6.1.2. Edit menu&lt;/a&gt;&lt;/li&gt;
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&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#edit-context-menu&quot;&gt;24.6.1.5. Edit context menu&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#shell-context-menu&quot;&gt;24.6.1.6. Shell context menu&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#basic-editing-and-navigation&quot;&gt;24.6.2. Basic editing and navigation&lt;/a&gt;&lt;ul&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#automatic-indentation&quot;&gt;24.6.2.1. Automatic indentation&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#python-shell-window&quot;&gt;24.6.2.2. Python Shell window&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#syntax-colors&quot;&gt;24.6.3. Syntax colors&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#startup&quot;&gt;24.6.4. Startup&lt;/a&gt;&lt;ul&gt;
&lt;li&gt;&lt;a class=&quot;reference internal&quot; href=&quot;#command-line-usage&quot;&gt;24.6.4.1. Command line usage&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
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