<!DOCTYPE html PUBLIC
"-//W3C//DTD HTML 4.0 Transitional//EN">
<link rel=
"STYLESHEET" href=
"lib.css" type='text/css'
/>
<link rel=
"SHORTCUT ICON" href=
"../icons/pyfav.png" type=
"image/png" />
<link rel='start' href='../index.html' title='Python Documentation Index'
/>
<link rel=
"first" href=
"lib.html" title='Python Library Reference'
/>
<link rel='contents' href='contents.html'
title=
"Contents" />
<link rel='index' href='genindex.html' title='Index'
/>
<link rel='last' href='about.html' title='About this document...'
/>
<link rel='help' href='about.html' title='About this document...'
/>
<link rel=
"next" href=
"msvcrt-other.html" />
<link rel=
"prev" href=
"msvcrt-files.html" />
<link rel=
"parent" href=
"module-msvcrt.html" />
<link rel=
"next" href=
"msvcrt-other.html" />
<meta name='aesop' content='information'
/>
<title>22.1.2 Console I/O
</title>
<div id='top-navigation-panel' xml:id='top-navigation-panel'
>
<table align=
"center" width=
"100%" cellpadding=
"0" cellspacing=
"2">
<td class='online-navigation'
><a rel=
"prev" title=
"22.1.1 File Operations"
href=
"msvcrt-files.html"><img src='../icons/previous.png'
border='
0' height='
32' alt='Previous Page' width='
32'
/></A></td>
<td class='online-navigation'
><a rel=
"parent" title=
"22.1 msvcrt - Useful"
href=
"module-msvcrt.html"><img src='../icons/up.png'
border='
0' height='
32' alt='Up One Level' width='
32'
/></A></td>
<td class='online-navigation'
><a rel=
"next" title=
"22.1.3 Other Functions"
href=
"msvcrt-other.html"><img src='../icons/next.png'
border='
0' height='
32' alt='Next Page' width='
32'
/></A></td>
<td align=
"center" width=
"100%">Python Library Reference
</td>
<td class='online-navigation'
><a rel=
"contents" title=
"Table of Contents"
href=
"contents.html"><img src='../icons/contents.png'
border='
0' height='
32' alt='Contents' width='
32'
/></A></td>
<td class='online-navigation'
><a href=
"modindex.html" title=
"Module Index"><img src='../icons/modules.png'
border='
0' height='
32' alt='Module Index' width='
32'
/></a></td>
<td class='online-navigation'
><a rel=
"index" title=
"Index"
href=
"genindex.html"><img src='../icons/index.png'
border='
0' height='
32' alt='Index' width='
32'
/></A></td>
<div class='online-navigation'
>
<b class=
"navlabel">Previous:
</b>
<a class=
"sectref" rel=
"prev" href=
"msvcrt-files.html">22.1.1 File Operations
</A>
<b class=
"navlabel">Up:
</b>
<a class=
"sectref" rel=
"parent" href=
"module-msvcrt.html">22.1 msvcrt - Useful
</A>
<b class=
"navlabel">Next:
</b>
<a class=
"sectref" rel=
"next" href=
"msvcrt-other.html">22.1.3 Other Functions
</A>
<!--End of Navigation Panel-->
<H2><A NAME=
"SECTION0024120000000000000000"></A><A NAME=
"msvcrt-console"></A>
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
5249' xml:id='l2h-
5249'
class=
"function">kbhit
</tt></b>(
</nobr></td>
<td><var></var>)
</td></tr></table></dt>
Return true if a keypress is waiting to be read.
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
5250' xml:id='l2h-
5250'
class=
"function">getch
</tt></b>(
</nobr></td>
<td><var></var>)
</td></tr></table></dt>
Read a keypress and return the resulting character. Nothing is
echoed to the console. This call will block if a keypress is not
already available, but will not wait for
<kbd>Enter
</kbd> to be pressed.
If the pressed key was a special function key, this will return
<code>'
\000'
</code> or
<code>'
\xe0'
</code>; the next call will return the
keycode. The
<kbd>Control-C
</kbd> keypress cannot be read with this
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
5251' xml:id='l2h-
5251'
class=
"function">getche
</tt></b>(
</nobr></td>
<td><var></var>)
</td></tr></table></dt>
Similar to
<tt class=
"function">getch()
</tt>, but the keypress will be echoed if it
represents a printable character.
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
5252' xml:id='l2h-
5252'
class=
"function">putch
</tt></b>(
</nobr></td>
<td><var>char
</var>)
</td></tr></table></dt>
Print the character
<var>char
</var> to the console without buffering.
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
5253' xml:id='l2h-
5253'
class=
"function">ungetch
</tt></b>(
</nobr></td>
<td><var>char
</var>)
</td></tr></table></dt>
Cause the character
<var>char
</var> to be ``pushed back'' into the
console buffer; it will be the next character read by
<tt class=
"function">getch()
</tt> or
<tt class=
"function">getche()
</tt>.
<div class='online-navigation'
>
<table align=
"center" width=
"100%" cellpadding=
"0" cellspacing=
"2">
<td class='online-navigation'
><a rel=
"prev" title=
"22.1.1 File Operations"
href=
"msvcrt-files.html"><img src='../icons/previous.png'
border='
0' height='
32' alt='Previous Page' width='
32'
/></A></td>
<td class='online-navigation'
><a rel=
"parent" title=
"22.1 msvcrt - Useful"
href=
"module-msvcrt.html"><img src='../icons/up.png'
border='
0' height='
32' alt='Up One Level' width='
32'
/></A></td>
<td class='online-navigation'
><a rel=
"next" title=
"22.1.3 Other Functions"
href=
"msvcrt-other.html"><img src='../icons/next.png'
border='
0' height='
32' alt='Next Page' width='
32'
/></A></td>
<td align=
"center" width=
"100%">Python Library Reference
</td>
<td class='online-navigation'
><a rel=
"contents" title=
"Table of Contents"
href=
"contents.html"><img src='../icons/contents.png'
border='
0' height='
32' alt='Contents' width='
32'
/></A></td>
<td class='online-navigation'
><a href=
"modindex.html" title=
"Module Index"><img src='../icons/modules.png'
border='
0' height='
32' alt='Module Index' width='
32'
/></a></td>
<td class='online-navigation'
><a rel=
"index" title=
"Index"
href=
"genindex.html"><img src='../icons/index.png'
border='
0' height='
32' alt='Index' width='
32'
/></A></td>
<div class='online-navigation'
>
<b class=
"navlabel">Previous:
</b>
<a class=
"sectref" rel=
"prev" href=
"msvcrt-files.html">22.1.1 File Operations
</A>
<b class=
"navlabel">Up:
</b>
<a class=
"sectref" rel=
"parent" href=
"module-msvcrt.html">22.1 msvcrt - Useful
</A>
<b class=
"navlabel">Next:
</b>
<a class=
"sectref" rel=
"next" href=
"msvcrt-other.html">22.1.3 Other Functions
</A>
<span class=
"release-info">Release
2.4.2, documentation updated on
28 September
2005.
</span>
<!--End of Navigation Panel-->
See
<i><a href=
"about.html">About this document...
</a></i> for information on suggesting changes.