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Editing: getpass.html
<!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="X-UA-Compatible" content="IE=Edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>16.9. getpass β Portable password input — Python 3.6.7 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" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></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 3.6.7 documentation" href="../_static/opensearch.xml"/> <link rel="author" title="About these documents" href="../about.html" /> <link rel="index" title="Index" href="../genindex.html" /> <link rel="search" title="Search" href="../search.html" /> <link rel="copyright" title="Copyright" href="../copyright.html" /> <link rel="next" title="16.10. curses β Terminal handling for character-cell displays" href="curses.html" /> <link rel="prev" title="16.8. logging.handlers β Logging handlers" href="logging.handlers.html" /> <link rel="shortcut icon" type="image/png" href="../_static/py.png" /> <link rel="canonical" href="https://docs.python.org/3/library/getpass.html" /> <script type="text/javascript" src="../_static/copybutton.js"></script> </head><body> <div class="related" role="navigation" aria-label="related navigation"> <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="curses.html" title="16.10. curses β Terminal handling for character-cell displays" accesskey="N">next</a> |</li> <li class="right" > <a href="logging.handlers.html" title="16.8. logging.handlers β Logging handlers" 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> »</li> <li> <a href="../index.html">3.6.7 Documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li> <li class="nav-item nav-item-2"><a href="allos.html" accesskey="U">16. Generic Operating System Services</a> »</li> <li class="right"> <div class="inline-search" style="display: none" role="search"> <form class="inline-search" action="../search.html" method="get"> <input placeholder="Quick search" 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> </div> <script type="text/javascript">$('.inline-search').show(0);</script> | </li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <div class="section" id="module-getpass"> <span id="getpass-portable-password-input"></span><h1>16.9. <a class="reference internal" href="#module-getpass" title="getpass: Portable reading of passwords and retrieval of the userid."><code class="xref py py-mod docutils literal notranslate"><span class="pre">getpass</span></code></a> β Portable password input<a class="headerlink" href="#module-getpass" title="Permalink to this headline">ΒΆ</a></h1> <p><strong>Source code:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/3.6/Lib/getpass.py">Lib/getpass.py</a></p> <hr class="docutils" /> <p>The <a class="reference internal" href="#module-getpass" title="getpass: Portable reading of passwords and retrieval of the userid."><code class="xref py py-mod docutils literal notranslate"><span class="pre">getpass</span></code></a> module provides two functions:</p> <dl class="function"> <dt id="getpass.getpass"> <code class="descclassname">getpass.</code><code class="descname">getpass</code><span class="sig-paren">(</span><em>prompt='Password: '</em>, <em>stream=None</em><span class="sig-paren">)</span><a class="headerlink" href="#getpass.getpass" title="Permalink to this definition">ΒΆ</a></dt> <dd><p>Prompt the user for a password without echoing. The user is prompted using the string <em>prompt</em>, which defaults to <code class="docutils literal notranslate"><span class="pre">'Password:</span> <span class="pre">'</span></code>. On Unix, the prompt is written to the file-like object <em>stream</em> using the replace error handler if needed. <em>stream</em> defaults to the controlling terminal (<code class="file docutils literal notranslate"><span class="pre">/dev/tty</span></code>) or if that is unavailable to <code class="docutils literal notranslate"><span class="pre">sys.stderr</span></code> (this argument is ignored on Windows).</p> <p>If echo free input is unavailable getpass() falls back to printing a warning message to <em>stream</em> and reading from <code class="docutils literal notranslate"><span class="pre">sys.stdin</span></code> and issuing a <a class="reference internal" href="#getpass.GetPassWarning" title="getpass.GetPassWarning"><code class="xref py py-exc docutils literal notranslate"><span class="pre">GetPassWarning</span></code></a>.</p> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">If you call getpass from within IDLE, the input may be done in the terminal you launched IDLE from rather than the idle window itself.</p> </div> </dd></dl> <dl class="exception"> <dt id="getpass.GetPassWarning"> <em class="property">exception </em><code class="descclassname">getpass.</code><code class="descname">GetPassWarning</code><a class="headerlink" href="#getpass.GetPassWarning" title="Permalink to this definition">ΒΆ</a></dt> <dd><p>A <a class="reference internal" href="exceptions.html#UserWarning" title="UserWarning"><code class="xref py py-exc docutils literal notranslate"><span class="pre">UserWarning</span></code></a> subclass issued when password input may be echoed.</p> </dd></dl> <dl class="function"> <dt id="getpass.getuser"> <code class="descclassname">getpass.</code><code class="descname">getuser</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#getpass.getuser" title="Permalink to this definition">ΒΆ</a></dt> <dd><p>Return the βlogin nameβ of the user.</p> <p>This function checks the environment variables <span class="target" id="index-0"></span><code class="xref std std-envvar docutils literal notranslate"><span class="pre">LOGNAME</span></code>, <span class="target" id="index-1"></span><code class="xref std std-envvar docutils literal notranslate"><span class="pre">USER</span></code>, <span class="target" id="index-2"></span><code class="xref std std-envvar docutils literal notranslate"><span class="pre">LNAME</span></code> and <span class="target" id="index-3"></span><code class="xref std std-envvar docutils literal notranslate"><span class="pre">USERNAME</span></code>, in order, and returns the value of the first one which is set to a non-empty string. If none are set, the login name from the password database is returned on systems which support the <a class="reference internal" href="pwd.html#module-pwd" title="pwd: The password database (getpwnam() and friends). (Unix)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">pwd</span></code></a> module, otherwise, an exception is raised.</p> <p>In general, this function should be preferred over <a class="reference internal" href="os.html#os.getlogin" title="os.getlogin"><code class="xref py py-func docutils literal notranslate"><span class="pre">os.getlogin()</span></code></a>.</p> </dd></dl> </div> </div> </div> </div> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h4>Previous topic</h4> <p class="topless"><a href="logging.handlers.html" title="previous chapter">16.8. <code class="docutils literal notranslate"><span class="pre">logging.handlers</span></code> β Logging handlers</a></p> <h4>Next topic</h4> <p class="topless"><a href="curses.html" title="next chapter">16.10. <code class="docutils literal notranslate"><span class="pre">curses</span></code> β Terminal handling for character-cell displays</a></p> <div role="note" aria-label="source link"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../bugs.html">Report a Bug</a></li> <li> <a href="https://github.com/python/cpython/blob/3.6/Doc/library/getpass.rst" rel="nofollow">Show Source </a> </li> </ul> </div> </div> </div> <div class="clearer"></div> </div> <div class="related" role="navigation" aria-label="related navigation"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" >index</a></li> <li class="right" > <a href="../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="curses.html" title="16.10. curses β Terminal handling for character-cell displays" >next</a> |</li> <li class="right" > <a href="logging.handlers.html" title="16.8. logging.handlers β Logging handlers" >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> »</li> <li> <a href="../index.html">3.6.7 Documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li> <li class="nav-item nav-item-2"><a href="allos.html" >16. 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