Merge with 3.5

Lib/idlelib/EditorWindow.py

@@ -21,6 +21,7 @@ from idlelib import PyParse
 from idlelib.configHandler import idleConf
 from idlelib import aboutDialog, textView, configDialog
 from idlelib import macosxSupport
+from idlelib import help
 
 # The default tab setting for a Text widget, in average-width characters.
 TK_TABWIDTH_DEFAULT = 8
@@ -42,6 +43,11 @@ def _sphinx_version():
 class HelpDialog(object):
 
     def __init__(self):
+        import warnings as w
+        w.warn("EditorWindow.HelpDialog is no longer used by Idle.\n"
+               "It will be removed in 3.6 or later.\n"
+               "It has been replaced by private help.HelpWindow\n",
+               DeprecationWarning, stacklevel=2)
         self.parent = None      # parent of help window
         self.dlg = None         # the help window iteself
 
@@ -539,11 +545,13 @@ class EditorWindow(object):
         configDialog.ConfigExtensionsDialog(self.top)
 
     def help_dialog(self, event=None):
+        "Handle help doc event."
+        # edit maxosxSupport.overrideRootMenu.help_dialog to match
         if self.root:
             parent = self.root
         else:
             parent = self.top
-        helpDialog.display(parent, near=self.top)
+        help.show_idlehelp(parent)
 
     def python_docs(self, event=None):
         if sys.platform[:3] == 'win':
@@ -1716,4 +1724,4 @@ def _editor_window(parent):  # htest #
 
 if __name__ == '__main__':
     from idlelib.idle_test.htest import run
-    run(_help_dialog, _editor_window)
+    run(_editor_window)

Lib/idlelib/help.py

@@ -0,0 +1,233 @@
+"""
+help.py implements the Idle help menu and is subject to change.
+
+The contents are subject to revision at any time, without notice.
+
+Help => About IDLE: diplay About Idle dialog
+
+<to be moved here from aboutDialog.py>
+
+Help => IDLE Help: display idle.html with proper formatting
+
+HelpParser - Parses idle.html generated from idle.rst by Sphinx
+and renders to tk Text.
+
+HelpText - Displays formatted idle.html.
+
+HelpFrame - Contains text, scrollbar, and table-of-contents.
+(This will be needed for display in a future tabbed window.)
+
+HelpWindow - Display idleframe in a standalone window.
+
+show_idlehelp - Create HelpWindow.  Called in EditorWindow.help_dialog.
+"""
+from html.parser import HTMLParser
+from os.path import abspath, dirname, isdir, isfile, join
+from tkinter import Tk, Toplevel, Frame, Text, Scrollbar, Menu, Menubutton
+from tkinter import font as tkfont
+
+use_ttk = False # until available to import
+if use_ttk:
+    from tkinter.ttk import Menubutton
+
+## About IDLE ##
+
+
+## IDLE Help ##
+
+class HelpParser(HTMLParser):
+    """Render idle.html generated by Sphinx from idle.rst.
+
+    The overridden handle_xyz methods handle a subset of html tags.
+    The supplied text should have the needed tag configurations.
+    The behavior for unsupported tags, such as table, is undefined.
+    """
+    def __init__(self, text):
+        HTMLParser.__init__(self, convert_charrefs=True)
+        self.text = text         # text widget we're rendering into
+        self.tags = ''           # current text tags to apply
+        self.show = False        # used so we exclude page navigation
+        self.hdrlink = False     # used so we don't show header links
+        self.level = 0           # indentation level
+        self.pre = False         # displaying preformatted text
+        self.hprefix = ''        # strip e.g. '25.5' from headings
+        self.nested_dl = False   # if we're in a nested <dl>
+        self.simplelist = False  # simple list (no double spacing)
+        self.tocid = 1           # id for table of contents entries
+        self.contents = []       # map toc ids to section titles
+        self.data = ''           # to record data within header tags for toc
+
+    def indent(self, amt=1):
+        self.level += amt
+        self.tags = '' if self.level == 0 else 'l'+str(self.level)
+
+    def handle_starttag(self, tag, attrs):
+        "Handle starttags in idle.html."
+        class_ = ''
+        for a, v in attrs:
+            if a == 'class':
+                class_ = v
+        s = ''
+        if tag == 'div' and class_ == 'section':
+            self.show = True    # start of main content
+        elif tag == 'div' and class_ == 'sphinxsidebar':
+            self.show = False   # end of main content
+        elif tag == 'p' and class_ != 'first':
+            s = '\n\n'
+        elif tag == 'span' and class_ == 'pre':
+            self.tags = 'pre'
+        elif tag == 'span' and class_ == 'versionmodified':
+            self.tags = 'em'
+        elif tag == 'em':
+            self.tags = 'em'
+        elif tag in ['ul', 'ol']:
+            if class_.find('simple') != -1:
+                s = '\n'
+                self.simplelist = True
+            else:
+                self.simplelist = False
+            self.indent()
+        elif tag == 'dl':
+            if self.level > 0:
+                self.nested_dl = True
+        elif tag == 'li':
+            s = '\n* ' if self.simplelist else '\n\n* '
+        elif tag == 'dt':
+            s = '\n\n' if not self.nested_dl else '\n'  # avoid extra line
+            self.nested_dl = False
+        elif tag == 'dd':
+            self.indent()
+            s = '\n'
+        elif tag == 'pre':
+            self.pre = True
+            if self.show:
+                self.text.insert('end', '\n\n')
+            self.tags = 'preblock'
+        elif tag == 'a' and class_ == 'headerlink':
+            self.hdrlink = True
+        elif tag == 'h1':
+            self.text.mark_set('toc'+str(self.tocid),
+                            self.text.index('end-1line'))
+            self.tags = tag
+        elif tag in ['h2', 'h3']:
+            if self.show:
+                self.data = ''
+                self.text.mark_set('toc'+str(self.tocid),
+                                self.text.index('end-1line'))
+                self.text.insert('end', '\n\n')
+            self.tags = tag
+        if self.show:
+            self.text.insert('end', s, self.tags)
+
+    def handle_endtag(self, tag):
+        "Handle endtags in idle.html."
+        if tag in ['h1', 'h2', 'h3', 'span', 'em']:
+            self.indent(0)  # clear tag, reset indent
+            if self.show and tag in ['h1', 'h2', 'h3']:
+                title = self.data
+                self.contents.append(('toc'+str(self.tocid), title))
+                self.tocid += 1
+        elif tag == 'a':
+            self.hdrlink = False
+        elif tag == 'pre':
+            self.pre = False
+            self.tags = ''
+        elif tag in ['ul', 'dd', 'ol']:
+            self.indent(amt=-1)
+
+    def handle_data(self, data):
+        "Handle date segments in idle.html."
+        if self.show and not self.hdrlink:
+            d = data if self.pre else data.replace('\n', ' ')
+            if self.tags == 'h1':
+                self.hprefix = d[0:d.index(' ')]
+            if self.tags in ['h1', 'h2', 'h3'] and self.hprefix != '':
+                if d[0:len(self.hprefix)] == self.hprefix:
+                    d = d[len(self.hprefix):].strip()
+                self.data += d
+            self.text.insert('end', d, self.tags)
+
+
+class HelpText(Text):
+    "Display idle.html."
+    def __init__(self, parent, filename):
+        "Configure tags and feed file to parser."
+        Text.__init__(self, parent, wrap='word', highlightthickness=0,
+                      padx=5, borderwidth=0)
+
+        normalfont = self.findfont(['TkDefaultFont', 'arial', 'helvetica'])
+        fixedfont = self.findfont(['TkFixedFont', 'monaco', 'courier'])
+        self['font'] = (normalfont, 12)
+        self.tag_configure('em', font=(normalfont, 12, 'italic'))
+        self.tag_configure('h1', font=(normalfont, 20, 'bold'))
+        self.tag_configure('h2', font=(normalfont, 18, 'bold'))
+        self.tag_configure('h3', font=(normalfont, 15, 'bold'))
+        self.tag_configure('pre', font=(fixedfont, 12))
+        self.tag_configure('preblock', font=(fixedfont, 10), lmargin1=25,
+                borderwidth=1, relief='solid', background='#eeffcc')
+        self.tag_configure('l1', lmargin1=25, lmargin2=25)
+        self.tag_configure('l2', lmargin1=50, lmargin2=50)
+        self.tag_configure('l3', lmargin1=75, lmargin2=75)
+        self.tag_configure('l4', lmargin1=100, lmargin2=100)
+
+        self.parser = HelpParser(self)
+        with open(filename, encoding='utf-8') as f:
+            contents = f.read()
+        self.parser.feed(contents)
+        self['state'] = 'disabled'
+
+    def findfont(self, names):
+        "Return name of first font family derived from names."
+        for name in names:
+            if name.lower() in (x.lower() for x in tkfont.names(root=self)):
+                font = tkfont.Font(name=name, exists=True, root=self)
+                return font.actual()['family']
+            elif name.lower() in (x.lower()
+                                  for x in tkfont.families(root=self)):
+                return name
+
+
+class HelpFrame(Frame):
+    def __init__(self, parent, filename):
+        Frame.__init__(self, parent)
+        text = HelpText(self, filename)
+        self['background'] = text['background']
+        scroll = Scrollbar(self, command=text.yview)
+        text['yscrollcommand'] = scroll.set
+        text.grid(column=1, row=0, sticky='nsew')
+        scroll.grid(column=2, row=0, sticky='ns')
+        self.grid_columnconfigure(1, weight=1)
+        self.grid_rowconfigure(0, weight=1)
+        toc = self.contents_widget(text)
+        toc.grid(column=0, row=0, sticky='nw')
+
+    def contents_widget(self, text):
+        toc = Menubutton(self, text='TOC')
+        drop = Menu(toc, tearoff=False)
+        for tag, lbl in text.parser.contents:
+            drop.add_command(label=lbl, command=lambda mark=tag:text.see(mark))
+        toc['menu'] = drop
+        return toc
+
+
+class HelpWindow(Toplevel):
+
+    def __init__(self, parent, filename, title):
+        Toplevel.__init__(self, parent)
+        self.wm_title(title)
+        self.protocol("WM_DELETE_WINDOW", self.destroy)
+        HelpFrame(self, filename).grid(column=0, row=0, sticky='nsew')
+        self.grid_columnconfigure(0, weight=1)
+        self.grid_rowconfigure(0, weight=1)
+
+
+def show_idlehelp(parent):
+    filename = join(abspath(dirname(__file__)), 'idle.html')
+    if not isfile(filename):
+        dirpath = join(abspath(dirname(dirname(dirname(__file__)))),
+                   'Doc', 'build', 'html', 'library')
+    HelpWindow(parent, filename, 'IDLE Help')
+
+if __name__ == '__main__':
+    from idlelib.idle_test.htest import run
+    run(show_idlehelp)

Lib/idlelib/help.txt

@@ -1,3 +1,7 @@
+This file, idlelib/help.txt is out-of-date and no longer used by Idle.
+It is deprecated and will be removed in the future, possibly in 3.6
+----------------------------------------------------------------------
+
 [See the end of this file for ** TIPS ** on using IDLE !!]
 
 IDLE is the Python IDE built with the tkinter GUI toolkit.

Lib/idlelib/idle.html

@@ -0,0 +1,671 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    
+    <title>25.5. IDLE &mdash; Python 3.4.3 documentation</title>
+    
+    <link rel="stylesheet" href="../_static/pydoctheme.css" type="text/css" />
+    <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
+    
+    <script type="text/javascript">
+      var DOCUMENTATION_OPTIONS = {
+        URL_ROOT:    '../',
+        VERSION:     '3.4.3',
+        COLLAPSE_INDEX: false,
+        FILE_SUFFIX: '.html',
+        HAS_SOURCE:  true
+      };
+    </script>
+    <script type="text/javascript" src="../_static/jquery.js"></script>
+    <script type="text/javascript" src="../_static/underscore.js"></script>
+    <script type="text/javascript" src="../_static/doctools.js"></script>
+    <script type="text/javascript" src="../_static/sidebar.js"></script>
+    <link rel="search" type="application/opensearchdescription+xml"
+          title="Search within Python 3.4.3 documentation"
+          href="../_static/opensearch.xml"/>
+    <link rel="author" title="About these documents" href="../about.html" />
+    <link rel="copyright" title="Copyright" href="../copyright.html" />
+    <link rel="top" title="Python 3.4.3 documentation" href="../index.html" />
+    <link rel="up" title="25. Graphical User Interfaces with Tk" href="tk.html" />
+    <link rel="next" title="25.6. Other Graphical User Interface Packages" href="othergui.html" />
+    <link rel="prev" title="25.4. tkinter.scrolledtext — Scrolled Text Widget" href="tkinter.scrolledtext.html" />
+    <link rel="shortcut icon" type="image/png" href="../_static/py.png" />
+    <script type="text/javascript" src="../_static/copybutton.js"></script>
+    
+    
+ 
+
+  </head>
+  <body>  
+    <div class="related">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="../genindex.html" title="General Index"
+             accesskey="I">index</a></li>
+        <li class="right" >
+          <a href="../py-modindex.html" title="Python Module Index"
+             >modules</a> |</li>
+        <li class="right" >
+          <a href="othergui.html" title="25.6. Other Graphical User Interface Packages"
+             accesskey="N">next</a> |</li>
+        <li class="right" >
+          <a href="tkinter.scrolledtext.html" title="25.4. tkinter.scrolledtext — Scrolled Text Widget"
+             accesskey="P">previous</a> |</li>
+        <li><img src="../_static/py.png" alt=""
+                 style="vertical-align: middle; margin-top: -1px"/></li>
+        <li><a href="https://www.python.org/">Python</a> &raquo;</li>
+        <li>
+          <a href="../index.html">3.4.3 Documentation</a> &raquo;
+        </li>
+
+          <li><a href="index.html" >The Python Standard Library</a> &raquo;</li>
+          <li><a href="tk.html" accesskey="U">25. Graphical User Interfaces with Tk</a> &raquo;</li> 
+      </ul>
+    </div>    
+
+    <div class="document">
+      <div class="documentwrapper">
+        <div class="bodywrapper">
+          <div class="body">
+            
+  <div class="section" id="idle">
+<span id="id1"></span><h1>25.5. IDLE<a class="headerlink" href="#idle" title="Permalink to this headline">¶</a></h1>
+<p id="index-0">IDLE is the Python IDE built with the <a class="reference internal" href="tkinter.html#module-tkinter" title="tkinter: Interface to Tcl/Tk for graphical user interfaces"><tt class="xref py py-mod docutils literal"><span class="pre">tkinter</span></tt></a> GUI toolkit.</p>
+<p>IDLE has the following features:</p>
+<ul class="simple">
+<li>coded in 100% pure Python, using the <a class="reference internal" href="tkinter.html#module-tkinter" title="tkinter: Interface to Tcl/Tk for graphical user interfaces"><tt class="xref py py-mod docutils literal"><span class="pre">tkinter</span></tt></a> GUI toolkit</li>
+<li>cross-platform: works on Windows, Unix, and Mac OS X</li>
+<li>multi-window text editor with multiple undo, Python colorizing,
+smart indent, call tips, and many other features</li>
+<li>Python shell window (a.k.a. interactive interpreter)</li>
+<li>debugger (not complete, but you can set breakpoints, view and step)</li>
+</ul>
+<div class="section" id="menus">
+<h2>25.5.1. Menus<a class="headerlink" href="#menus" title="Permalink to this headline">¶</a></h2>
+<p>IDLE has two main window types, the Shell window and the Editor window.  It is
+possible to have multiple editor windows simultaneously.  Output windows, such
+as used for Edit / Find in Files, are a subtype of edit window.  They currently
+have the same top menu as Editor windows but a different default title and
+context menu.</p>
+<p>IDLE&#8217;s menus dynamically change based on which window is currently selected.
+Each menu documented below indicates which window type it is associated with.</p>
+<div class="section" id="file-menu-shell-and-editor">
+<h3>25.5.1.1. File menu (Shell and Editor)<a class="headerlink" href="#file-menu-shell-and-editor" title="Permalink to this headline">¶</a></h3>
+<dl class="docutils">
+<dt>New File</dt>
+<dd>Create a new file editing window.</dd>
+<dt>Open...</dt>
+<dd>Open an existing file with an Open dialog.</dd>
+<dt>Recent Files</dt>
+<dd>Open a list of recent files.  Click one to open it.</dd>
+<dt>Open Module...</dt>
+<dd>Open an existing module (searches sys.path).</dd>
+</dl>
+<dl class="docutils" id="index-1">
+<dt>Class Browser</dt>
+<dd>Show functions, classes, and methods in the current Editor file in a
+tree structure.  In the shell, open a module first.</dd>
+<dt>Path Browser</dt>
+<dd>Show sys.path directories, modules, functions, classes and methods in a
+tree structure.</dd>
+<dt>Save</dt>
+<dd>Save the current window to the associated file, if there is one.  Windows
+that have been changed since being opened or last saved have a * before
+and after the window title.  If there is no associated file,
+do Save As instead.</dd>
+<dt>Save As...</dt>
+<dd>Save the current window with a Save As dialog.  The file saved becomes the
+new associated file for the window.</dd>
+<dt>Save Copy As...</dt>
+<dd>Save the current window to different file without changing the associated
+file.</dd>
+<dt>Print Window</dt>
+<dd>Print the current window to the default printer.</dd>
+<dt>Close</dt>
+<dd>Close the current window (ask to save if unsaved).</dd>
+<dt>Exit</dt>
+<dd>Close all windows and quit IDLE (ask to save unsaved windows).</dd>
+</dl>
+</div>
+<div class="section" id="edit-menu-shell-and-editor">
+<h3>25.5.1.2. Edit menu (Shell and Editor)<a class="headerlink" href="#edit-menu-shell-and-editor" title="Permalink to this headline">¶</a></h3>
+<dl class="docutils">
+<dt>Undo</dt>
+<dd>Undo the last change to the current window.  A maximum of 1000 changes may
+be undone.</dd>
+<dt>Redo</dt>
+<dd>Redo the last undone change to the current window.</dd>
+<dt>Cut</dt>
+<dd>Copy selection into the system-wide clipboard; then delete the selection.</dd>
+<dt>Copy</dt>
+<dd>Copy selection into the system-wide clipboard.</dd>
+<dt>Paste</dt>
+<dd>Insert contents of the system-wide clipboard into the current window.</dd>
+</dl>
+<p>The clipboard functions are also available in context menus.</p>
+<dl class="docutils">
+<dt>Select All</dt>
+<dd>Select the entire contents of the current window.</dd>
+<dt>Find...</dt>
+<dd>Open a search dialog with many options</dd>
+<dt>Find Again</dt>
+<dd>Repeat the last search, if there is one.</dd>
+<dt>Find Selection</dt>
+<dd>Search for the currently selected string, if there is one.</dd>
+<dt>Find in Files...</dt>
+<dd>Open a file search dialog.  Put results in an new output window.</dd>
+<dt>Replace...</dt>
+<dd>Open a search-and-replace dialog.</dd>
+<dt>Go to Line</dt>
+<dd>Move cursor to the line number requested and make that line visible.</dd>
+<dt>Show Completions</dt>
+<dd>Open a scrollable list allowing selection of keywords and attributes. See
+Completions in the Tips sections below.</dd>
+<dt>Expand Word</dt>
+<dd>Expand a prefix you have typed to match a full word in the same window;
+repeat to get a different expansion.</dd>
+<dt>Show call tip</dt>
+<dd>After an unclosed parenthesis for a function, open a small window with
+function parameter hints.</dd>
+<dt>Show surrounding parens</dt>
+<dd>Highlight the surrounding parenthesis.</dd>
+</dl>
+</div>
+<div class="section" id="format-menu-editor-window-only">
+<h3>25.5.1.3. Format menu (Editor window only)<a class="headerlink" href="#format-menu-editor-window-only" title="Permalink to this headline">¶</a></h3>
+<dl class="docutils">
+<dt>Indent Region</dt>
+<dd>Shift selected lines right by the indent width (default 4 spaces).</dd>
+<dt>Dedent Region</dt>
+<dd>Shift selected lines left by the indent width (default 4 spaces).</dd>
+<dt>Comment Out Region</dt>
+<dd>Insert ## in front of selected lines.</dd>
+<dt>Uncomment Region</dt>
+<dd>Remove leading # or ## from selected lines.</dd>
+<dt>Tabify Region</dt>
+<dd>Turn <em>leading</em> stretches of spaces into tabs. (Note: We recommend using
+4 space blocks to indent Python code.)</dd>
+<dt>Untabify Region</dt>
+<dd>Turn <em>all</em> tabs into the correct number of spaces.</dd>
+<dt>Toggle Tabs</dt>
+<dd>Open a dialog to switch between indenting with spaces and tabs.</dd>
+<dt>New Indent Width</dt>
+<dd>Open a dialog to change indent width. The accepted default by the Python
+community is 4 spaces.</dd>
+<dt>Format Paragraph</dt>
+<dd>Reformat the current blank-line-delimited paragraph in comment block or
+multiline string or selected line in a string.  All lines in the
+paragraph will be formatted to less than N columns, where N defaults to 72.</dd>
+<dt>Strip trailing whitespace</dt>
+<dd>Remove any space characters after the last non-space character of a line.</dd>
+</dl>
+</div>
+<div class="section" id="run-menu-editor-window-only">
+<span id="index-2"></span><h3>25.5.1.4. Run menu (Editor window only)<a class="headerlink" href="#run-menu-editor-window-only" title="Permalink to this headline">¶</a></h3>
+<dl class="docutils">
+<dt>Python Shell</dt>
+<dd>Open or wake up the Python Shell window.</dd>
+<dt>Check Module</dt>
+<dd>Check the syntax of the module currently open in the Editor window. If the
+module has not been saved IDLE will either prompt the user to save or
+autosave, as selected in the General tab of the Idle Settings dialog.  If
+there is a syntax error, the approximate location is indicated in the
+Editor window.</dd>
+<dt>Run Module</dt>
+<dd>Do Check Module (above).  If no error, restart the shell to clean the
+environment, then execute the module.</dd>
+</dl>
+</div>
+<div class="section" id="shell-menu-shell-window-only">
+<h3>25.5.1.5. Shell menu (Shell window only)<a class="headerlink" href="#shell-menu-shell-window-only" title="Permalink to this headline">¶</a></h3>
+<dl class="docutils">
+<dt>View Last Restart</dt>
+<dd>Scroll the shell window to the last Shell restart.</dd>
+<dt>Restart Shell</dt>
+<dd>Restart the shell to clean the environment.</dd>
+</dl>
+</div>
+<div class="section" id="debug-menu-shell-window-only">
+<h3>25.5.1.6. Debug menu (Shell window only)<a class="headerlink" href="#debug-menu-shell-window-only" title="Permalink to this headline">¶</a></h3>
+<dl class="docutils">
+<dt>Go to File/Line</dt>
+<dd>Look on the current line. with the cursor, and the line above for a filename
+and line number.  If found, open the file if not already open, and show the
+line.  Use this to view source lines referenced in an exception traceback
+and lines found by Find in Files. Also available in the context menu of
+the Shell window and Output windows.</dd>
+</dl>
+<dl class="docutils" id="index-3">
+<dt>Debugger (toggle)</dt>
+<dd>When actived, code entered in the Shell or run from an Editor will run
+under the debugger.  In the Editor, breakpoints can be set with the context
+menu.  This feature is still incomplete and somewhat experimental.</dd>
+<dt>Stack Viewer</dt>
+<dd>Show the stack traceback of the last exception in a tree widget, with
+access to locals and globals.</dd>
+<dt>Auto-open Stack Viewer</dt>
+<dd>Toggle automatically opening the stack viewer on an unhandled exception.</dd>
+</dl>
+</div>
+<div class="section" id="options-menu-shell-and-editor">
+<h3>25.5.1.7. Options menu (Shell and Editor)<a class="headerlink" href="#options-menu-shell-and-editor" title="Permalink to this headline">¶</a></h3>
+<dl class="docutils">
+<dt>Configure IDLE</dt>
+<dd>Open a configuration dialog.  Fonts, indentation, keybindings, and color
+themes may be altered.  Startup Preferences may be set, and additional
+help sources can be specified.  Non-default user setting are saved in a
+.idlerc directory in the user&#8217;s home directory.  Problems caused by bad user
+configuration files are solved by editing or deleting one or more of the
+files in .idlerc.  On OS X, open the configuration dialog by selecting
+Preferences in the application menu.</dd>
+<dt>Configure Extensions</dt>
+<dd>Open a configuration dialog for setting preferences for extensions
+(discussed below).  See note above about the location of user settings.</dd>
+<dt>Code Context (toggle)(Editor Window only)</dt>
+<dd>Open a pane at the top of the edit window which shows the block context
+of the code which has scrolled above the top of the window.</dd>
+</dl>
+</div>
+<div class="section" id="window-menu-shell-and-editor">
+<h3>25.5.1.8. Window menu (Shell and Editor)<a class="headerlink" href="#window-menu-shell-and-editor" title="Permalink to this headline">¶</a></h3>
+<dl class="docutils">
+<dt>Zoom Height</dt>
+<dd>Toggles the window between normal size and maximum height. The initial size
+defaults to 40 lines by 80 chars unless changed on the General tab of the
+Configure IDLE dialog.</dd>
+</dl>
+<p>The rest of this menu lists the names of all open windows; select one to bring
+it to the foreground (deiconifying it if necessary).</p>
+</div>
+<div class="section" id="help-menu-shell-and-editor">
+<h3>25.5.1.9. Help menu (Shell and Editor)<a class="headerlink" href="#help-menu-shell-and-editor" title="Permalink to this headline">¶</a></h3>
+<dl class="docutils">
+<dt>About IDLE</dt>
+<dd>Display version, copyright, license, credits, and more.</dd>
+<dt>IDLE Help</dt>
+<dd>Display a help file for IDLE detailing the menu options, basic editing and
+navigation, and other tips.</dd>
+<dt>Python Docs</dt>
+<dd>Access local Python documentation, if installed, or start a web browser
+and open docs.python.org showing the latest Python documentation.</dd>
+<dt>Turtle Demo</dt>
+<dd>Run the turtledemo module with example python code and turtle drawings.</dd>
+</dl>
+<p>Additional help sources may be added here with the Configure IDLE dialog under
+the General tab.</p>
+</div>
+<div class="section" id="context-menus">
+<span id="index-4"></span><h3>25.5.1.10. Context Menus<a class="headerlink" href="#context-menus" title="Permalink to this headline">¶</a></h3>
+<p>Open a context menu by right-clicking in a window (Control-click on OS X).
+Context menus have the standard clipboard functions also on the Edit menu.</p>
+<dl class="docutils">
+<dt>Cut</dt>
+<dd>Copy selection into the system-wide clipboard; then delete the selection.</dd>
+<dt>Copy</dt>
+<dd>Copy selection into the system-wide clipboard.</dd>
+<dt>Paste</dt>
+<dd>Insert contents of the system-wide clipboard into the current window.</dd>
+</dl>
+<p>Editor windows also have breakpoint functions.  Lines with a breakpoint set are
+specially marked.  Breakpoints only have an effect when running under the
+debugger.  Breakpoints for a file are saved in the user&#8217;s .idlerc directory.</p>
+<dl class="docutils">
+<dt>Set Breakpoint</dt>
+<dd>Set a breakpoint on the current line.</dd>
+<dt>Clear Breakpoint</dt>
+<dd>Clear the breakpoint on that line.</dd>
+</dl>
+<p>Shell and Output windows have the following.</p>
+<dl class="docutils">
+<dt>Go to file/line</dt>
+<dd>Same as in Debug menu.</dd>
+</dl>
+</div>
+</div>
+<div class="section" id="editing-and-navigation">
+<h2>25.5.2. Editing and navigation<a class="headerlink" href="#editing-and-navigation" title="Permalink to this headline">¶</a></h2>
+<p>In this section, &#8216;C&#8217; refers to the <tt class="kbd docutils literal"><span class="pre">Control</span></tt> key on Windows and Unix and
+the <tt class="kbd docutils literal"><span class="pre">Command</span></tt> key on Mac OSX.</p>
+<ul>
+<li><p class="first"><tt class="kbd docutils literal"><span class="pre">Backspace</span></tt> deletes to the left; <tt class="kbd docutils literal"><span class="pre">Del</span></tt> deletes to the right</p>
+</li>
+<li><p class="first"><tt class="kbd docutils literal"><span class="pre">C-Backspace</span></tt> delete word left; <tt class="kbd docutils literal"><span class="pre">C-Del</span></tt> delete word to the right</p>
+</li>
+<li><p class="first">Arrow keys and <tt class="kbd docutils literal"><span class="pre">Page</span> <span class="pre">Up</span></tt>/<tt class="kbd docutils literal"><span class="pre">Page</span> <span class="pre">Down</span></tt> to move around</p>
+</li>
+<li><p class="first"><tt class="kbd docutils literal"><span class="pre">C-LeftArrow</span></tt> and <tt class="kbd docutils literal"><span class="pre">C-RightArrow</span></tt> moves by words</p>
+</li>
+<li><p class="first"><tt class="kbd docutils literal"><span class="pre">Home</span></tt>/<tt class="kbd docutils literal"><span class="pre">End</span></tt> go to begin/end of line</p>
+</li>
+<li><p class="first"><tt class="kbd docutils literal"><span class="pre">C-Home</span></tt>/<tt class="kbd docutils literal"><span class="pre">C-End</span></tt> go to begin/end of file</p>
+</li>
+<li><p class="first">Some useful Emacs bindings are inherited from Tcl/Tk:</p>
+<blockquote>
+<div><ul class="simple">
+<li><tt class="kbd docutils literal"><span class="pre">C-a</span></tt> beginning of line</li>
+<li><tt class="kbd docutils literal"><span class="pre">C-e</span></tt> end of line</li>
+<li><tt class="kbd docutils literal"><span class="pre">C-k</span></tt> kill line (but doesn&#8217;t put it in clipboard)</li>
+<li><tt class="kbd docutils literal"><span class="pre">C-l</span></tt> center window around the insertion point</li>
+<li><tt class="kbd docutils literal"><span class="pre">C-b</span></tt> go backwards one character without deleting (usually you can
+also use the cursor key for this)</li>
+<li><tt class="kbd docutils literal"><span class="pre">C-f</span></tt> go forward one character without deleting (usually you can
+also use the cursor key for this)</li>
+<li><tt class="kbd docutils literal"><span class="pre">C-p</span></tt> go up one line (usually you can also use the cursor key for
+this)</li>
+<li><tt class="kbd docutils literal"><span class="pre">C-d</span></tt> delete next character</li>
+</ul>
+</div></blockquote>
+</li>
+</ul>
+<p>Standard keybindings (like <tt class="kbd docutils literal"><span class="pre">C-c</span></tt> to copy and <tt class="kbd docutils literal"><span class="pre">C-v</span></tt> to paste)
+may work.  Keybindings are selected in the Configure IDLE dialog.</p>
+<div class="section" id="automatic-indentation">
+<h3>25.5.2.1. Automatic indentation<a class="headerlink" href="#automatic-indentation" title="Permalink to this headline">¶</a></h3>
+<p>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, <tt class="kbd docutils literal"><span class="pre">Backspace</span></tt> deletes up
+to 4 spaces if they are there. <tt class="kbd docutils literal"><span class="pre">Tab</span></tt> inserts spaces (in the Python
+Shell window one tab), number depends on Indent width. Currently tabs
+are restricted to four spaces due to Tcl/Tk limitations.</p>
+<p>See also the indent/dedent region commands in the edit menu.</p>
+</div>
+<div class="section" id="completions">
+<h3>25.5.2.2. Completions<a class="headerlink" href="#completions" title="Permalink to this headline">¶</a></h3>
+<p>Completions are supplied for functions, classes, and attributes of classes,
+both built-in and user-defined. Completions are also provided for
+filenames.</p>
+<p>The AutoCompleteWindow (ACW) will open after a predefined delay (default is
+two seconds) after a &#8216;.&#8217; or (in a string) an os.sep is typed. If after one
+of those characters (plus zero or more other characters) a tab is typed
+the ACW will open immediately if a possible continuation is found.</p>
+<p>If there is only one possible completion for the characters entered, a
+<tt class="kbd docutils literal"><span class="pre">Tab</span></tt> will supply that completion without opening the ACW.</p>
+<p>&#8216;Show Completions&#8217; will force open a completions window, by default the
+<tt class="kbd docutils literal"><span class="pre">C-space</span></tt> will open a completions window. In an empty
+string, this will contain the files in the current directory. On a
+blank line, it will contain the built-in and user-defined functions and
+classes in the current name spaces, plus any modules imported. If some
+characters have been entered, the ACW will attempt to be more specific.</p>
+<p>If a string of characters is typed, the ACW selection will jump to the
+entry most closely matching those characters.  Entering a <tt class="kbd docutils literal"><span class="pre">tab</span></tt> will
+cause the longest non-ambiguous match to be entered in the Editor window or
+Shell.  Two <tt class="kbd docutils literal"><span class="pre">tab</span></tt> in a row will supply the current ACW selection, as
+will return or a double click.  Cursor keys, Page Up/Down, mouse selection,
+and the scroll wheel all operate on the ACW.</p>
+<p>&#8220;Hidden&#8221; attributes can be accessed by typing the beginning of hidden
+name after a &#8216;.&#8217;, e.g. &#8216;_&#8217;. This allows access to modules with
+<tt class="docutils literal"><span class="pre">__all__</span></tt> set, or to class-private attributes.</p>
+<p>Completions and the &#8216;Expand Word&#8217; facility can save a lot of typing!</p>
+<p>Completions are currently limited to those in the namespaces. Names in
+an Editor window which are not via <tt class="docutils literal"><span class="pre">__main__</span></tt> and <a class="reference internal" href="sys.html#sys.modules" title="sys.modules"><tt class="xref py py-data docutils literal"><span class="pre">sys.modules</span></tt></a> will
+not be found.  Run the module once with your imports to correct this situation.
+Note that IDLE itself places quite a few modules in sys.modules, so
+much can be found by default, e.g. the re module.</p>
+<p>If you don&#8217;t like the ACW popping up unbidden, simply make the delay
+longer or disable the extension.  Or another option is the delay could
+be set to zero. Another alternative to preventing ACW popups is to
+disable the call tips extension.</p>
+</div>
+<div class="section" id="python-shell-window">
+<h3>25.5.2.3. Python Shell window<a class="headerlink" href="#python-shell-window" title="Permalink to this headline">¶</a></h3>
+<ul>
+<li><p class="first"><tt class="kbd docutils literal"><span class="pre">C-c</span></tt> interrupts executing command</p>
+</li>
+<li><p class="first"><tt class="kbd docutils literal"><span class="pre">C-d</span></tt> sends end-of-file; closes window if typed at a <tt class="docutils literal"><span class="pre">&gt;&gt;&gt;</span></tt> prompt</p>
+</li>
+<li><p class="first"><tt class="kbd docutils literal"><span class="pre">Alt-/</span></tt> (Expand word) is also useful to reduce typing</p>
+<p>Command history</p>
+<ul class="simple">
+<li><tt class="kbd docutils literal"><span class="pre">Alt-p</span></tt> retrieves previous command matching what you have typed. On
+OS X use <tt class="kbd docutils literal"><span class="pre">C-p</span></tt>.</li>
+<li><tt class="kbd docutils literal"><span class="pre">Alt-n</span></tt> retrieves next. On OS X use <tt class="kbd docutils literal"><span class="pre">C-n</span></tt>.</li>
+<li><tt class="kbd docutils literal"><span class="pre">Return</span></tt> while on any previous command retrieves that command</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<div class="section" id="syntax-colors">
+<h2>25.5.3. Syntax colors<a class="headerlink" href="#syntax-colors" title="Permalink to this headline">¶</a></h2>
+<p>The coloring is applied in a background &#8220;thread,&#8221; so you may occasionally see
+uncolorized text.  To change the color scheme, edit the <tt class="docutils literal"><span class="pre">[Colors]</span></tt> section in
+<tt class="file docutils literal"><span class="pre">config.txt</span></tt>.</p>
+<dl class="docutils">
+<dt>Python syntax colors:</dt>
+<dd><dl class="first last docutils">
+<dt>Keywords</dt>
+<dd>orange</dd>
+<dt>Strings</dt>
+<dd>green</dd>
+<dt>Comments</dt>
+<dd>red</dd>
+<dt>Definitions</dt>
+<dd>blue</dd>
+</dl>
+</dd>
+<dt>Shell colors:</dt>
+<dd><dl class="first last docutils">
+<dt>Console output</dt>
+<dd>brown</dd>
+<dt>stdout</dt>
+<dd>blue</dd>
+<dt>stderr</dt>
+<dd>dark green</dd>
+<dt>stdin</dt>
+<dd>black</dd>
+</dl>
+</dd>
+</dl>
+</div>
+<div class="section" id="startup">
+<h2>25.5.4. Startup<a class="headerlink" href="#startup" title="Permalink to this headline">¶</a></h2>
+<p>Upon startup with the <tt class="docutils literal"><span class="pre">-s</span></tt> option, IDLE will execute the file referenced by
+the environment variables <span class="target" id="index-5"></span><tt class="xref std std-envvar docutils literal"><span class="pre">IDLESTARTUP</span></tt> or <span class="target" id="index-6"></span><a class="reference internal" href="../using/cmdline.html#envvar-PYTHONSTARTUP"><tt class="xref std std-envvar docutils literal"><span class="pre">PYTHONSTARTUP</span></tt></a>.
+IDLE first checks for <tt class="docutils literal"><span class="pre">IDLESTARTUP</span></tt>; if <tt class="docutils literal"><span class="pre">IDLESTARTUP</span></tt> is present the file
+referenced is run.  If <tt class="docutils literal"><span class="pre">IDLESTARTUP</span></tt> is not present, IDLE checks for
+<tt class="docutils literal"><span class="pre">PYTHONSTARTUP</span></tt>.  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.</p>
+<p>In addition, <tt class="docutils literal"><span class="pre">Tk</span></tt> also loads a startup file if it is present.  Note that the
+Tk file is loaded unconditionally.  This additional file is <tt class="docutils literal"><span class="pre">.Idle.py</span></tt> and is
+looked for in the user&#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&#8217;s Python shell.</p>
+<div class="section" id="command-line-usage">
+<h3>25.5.4.1. Command line usage<a class="headerlink" href="#command-line-usage" title="Permalink to this headline">¶</a></h3>
+<div class="highlight-python3"><div class="highlight"><pre>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
+</pre></div>
+</div>
+<p>If there are arguments:</p>
+<ol class="arabic simple">
+<li>If <tt class="docutils literal"><span class="pre">-e</span></tt> is used, arguments are files opened for editing and
+<tt class="docutils literal"><span class="pre">sys.argv</span></tt> reflects the arguments passed to IDLE itself.</li>
+<li>Otherwise, if <tt class="docutils literal"><span class="pre">-c</span></tt> is used, all arguments are placed in
+<tt class="docutils literal"><span class="pre">sys.argv[1:...]</span></tt>, with <tt class="docutils literal"><span class="pre">sys.argv[0]</span></tt> set to <tt class="docutils literal"><span class="pre">'-c'</span></tt>.</li>
+<li>Otherwise, if neither <tt class="docutils literal"><span class="pre">-e</span></tt> nor <tt class="docutils literal"><span class="pre">-c</span></tt> is used, the first
+argument is a script which is executed with the remaining arguments in
+<tt class="docutils literal"><span class="pre">sys.argv[1:...]</span></tt>  and <tt class="docutils literal"><span class="pre">sys.argv[0]</span></tt> set to the script name.  If the
+script name is &#8216;-&#8216;, no script is executed but an interactive Python session
+is started;    the arguments are still available in <tt class="docutils literal"><span class="pre">sys.argv</span></tt>.</li>
+</ol>
+</div>
+<div class="section" id="running-without-a-subprocess">
+<h3>25.5.4.2. Running without a subprocess<a class="headerlink" href="#running-without-a-subprocess" title="Permalink to this headline">¶</a></h3>
+<p>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.</p>
+<div class="deprecated">
+<p><span class="versionmodified">Deprecated since version 3.4.</span></p>
+</div>
+</div>
+</div>
+<div class="section" id="help-and-preferences">
+<h2>25.5.5. Help and preferences<a class="headerlink" href="#help-and-preferences" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="additional-help-sources">
+<h3>25.5.5.1. Additional help sources<a class="headerlink" href="#additional-help-sources" title="Permalink to this headline">¶</a></h3>
+<p>IDLE includes a help menu entry called &#8220;Python Docs&#8221; that will open the
+extensive sources of help, including tutorials, available at docs.python.org.
+Selected URLs can be added or removed from the help menu at any time using the
+Configure IDLE dialog. See the IDLE help option in the help menu of IDLE for
+more information.</p>
+</div>
+<div class="section" id="setting-preferences">
+<h3>25.5.5.2. Setting preferences<a class="headerlink" href="#setting-preferences" title="Permalink to this headline">¶</a></h3>
+<p>The font preferences, highlighting, keys, and general preferences can be
+changed via Configure IDLE on the Option menu.  Keys can be user defined;
+IDLE ships with four built in key sets. In addition a user can create a
+custom key set in the Configure IDLE dialog under the keys tab.</p>
+</div>
+<div class="section" id="extensions">
+<h3>25.5.5.3. Extensions<a class="headerlink" href="#extensions" title="Permalink to this headline">¶</a></h3>
+<p>IDLE contains an extension facility.  Peferences for extensions can be
+changed with Configure Extensions. See the beginning of config-extensions.def
+in the idlelib directory for further information.  The default extensions
+are currently:</p>
+<ul class="simple">
+<li>FormatParagraph</li>
+<li>AutoExpand</li>
+<li>ZoomHeight</li>
+<li>ScriptBinding</li>
+<li>CallTips</li>
+<li>ParenMatch</li>
+<li>AutoComplete</li>
+<li>CodeContext</li>
+<li>RstripExtension</li>
+</ul>
+</div>
+</div>
+</div>
+
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
+  <h3><a href="../contents.html">Table Of Contents</a></h3>
+  <ul>
+<li><a class="reference internal" href="#">25.5. IDLE</a><ul>
+<li><a class="reference internal" href="#menus">25.5.1. Menus</a><ul>
+<li><a class="reference internal" href="#file-menu-shell-and-editor">25.5.1.1. File menu (Shell and Editor)</a></li>
+<li><a class="reference internal" href="#edit-menu-shell-and-editor">25.5.1.2. Edit menu (Shell and Editor)</a></li>
+<li><a class="reference internal" href="#format-menu-editor-window-only">25.5.1.3. Format menu (Editor window only)</a></li>
+<li><a class="reference internal" href="#run-menu-editor-window-only">25.5.1.4. Run menu (Editor window only)</a></li>
+<li><a class="reference internal" href="#shell-menu-shell-window-only">25.5.1.5. Shell menu (Shell window only)</a></li>
+<li><a class="reference internal" href="#debug-menu-shell-window-only">25.5.1.6. Debug menu (Shell window only)</a></li>
+<li><a class="reference internal" href="#options-menu-shell-and-editor">25.5.1.7. Options menu (Shell and Editor)</a></li>
+<li><a class="reference internal" href="#window-menu-shell-and-editor">25.5.1.8. Window menu (Shell and Editor)</a></li>
+<li><a class="reference internal" href="#help-menu-shell-and-editor">25.5.1.9. Help menu (Shell and Editor)</a></li>
+<li><a class="reference internal" href="#context-menus">25.5.1.10. Context Menus</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#editing-and-navigation">25.5.2. Editing and navigation</a><ul>
+<li><a class="reference internal" href="#automatic-indentation">25.5.2.1. Automatic indentation</a></li>
+<li><a class="reference internal" href="#completions">25.5.2.2. Completions</a></li>
+<li><a class="reference internal" href="#python-shell-window">25.5.2.3. Python Shell window</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#syntax-colors">25.5.3. Syntax colors</a></li>
+<li><a class="reference internal" href="#startup">25.5.4. Startup</a><ul>
+<li><a class="reference internal" href="#command-line-usage">25.5.4.1. Command line usage</a></li>
+<li><a class="reference internal" href="#running-without-a-subprocess">25.5.4.2. Running without a subprocess</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#help-and-preferences">25.5.5. Help and preferences</a><ul>
+<li><a class="reference internal" href="#additional-help-sources">25.5.5.1. Additional help sources</a></li>
+<li><a class="reference internal" href="#setting-preferences">25.5.5.2. Setting preferences</a></li>
+<li><a class="reference internal" href="#extensions">25.5.5.3. Extensions</a></li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+
+  <h4>Previous topic</h4>
+  <p class="topless"><a href="tkinter.scrolledtext.html"
+                        title="previous chapter">25.4. <tt class="docutils literal"><span class="pre">tkinter.scrolledtext</span></tt> &#8212; Scrolled Text Widget</a></p>
+  <h4>Next topic</h4>
+  <p class="topless"><a href="othergui.html"
+                        title="next chapter">25.6. Other Graphical User Interface Packages</a></p>
+<h3>This Page</h3>
+<ul class="this-page-menu">
+  <li><a href="../bugs.html">Report a Bug</a></li>
+  <li><a href="../_sources/library/idle.txt"
+         rel="nofollow">Show Source</a></li>
+</ul>
+
+<div id="searchbox" style="display: none">
+  <h3>Quick search</h3>
+    <form class="search" action="../search.html" method="get">
+      <input type="text" name="q" />
+      <input type="submit" value="Go" />
+      <input type="hidden" name="check_keywords" value="yes" />
+      <input type="hidden" name="area" value="default" />
+    </form>
+    <p class="searchtip" style="font-size: 90%">
+    Enter search terms or a module, class or function name.
+    </p>
+</div>
+<script type="text/javascript">$('#searchbox').show(0);</script>
+        </div>
+      </div>
+      <div class="clearer"></div>
+    </div>  
+    <div class="related">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="../genindex.html" title="General Index"
+             >index</a></li>
+        <li class="right" >
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Lib/idlelib/idle_test/htest.py

@@ -194,13 +194,6 @@ _grep_dialog_spec = {
            "should open that file \nin a new EditorWindow."
     }
 
-_help_dialog_spec = {
-    'file': 'EditorWindow',
-    'kwds': {},
-    'msg': "If the help text displays, this works.\n"
-           "Text is selectable. Window is scrollable."
-    }
-
 _io_binding_spec = {
     'file': 'IOBinding',
     'kwds': {},
@@ -279,6 +272,13 @@ _scrolled_list_spec = {
            "Right clicking an item will display a popup."
     }
 
+show_idlehelp_spec = {
+    'file': 'help',
+    'kwds': {},
+    'msg': "If the help text displays, this works.\n"
+           "Text is selectable. Window is scrollable."
+    }
+
 _stack_viewer_spec = {
     'file': 'StackViewer',
     'kwds': {},

Lib/idlelib/macosxSupport.py

@@ -174,9 +174,8 @@ def overrideRootMenu(root, flist):
         configDialog.ConfigDialog(root, 'Settings')
 
     def help_dialog(event=None):
-        from idlelib import textView
+        from idlelib import help
-        fn = path.join(path.abspath(path.dirname(__file__)), 'help.txt')
+        help.show_idlehelp(root)
-        textView.view_file(root, 'Help', fn)
 
     root.bind('<<about-idle>>', about_dialog)
     root.bind('<<open-config-dialog>>', config_dialog)