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  <div class="section" id="module-getpass">
<span id="getpass-portable-password-input"></span><h1>15.10. <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> — Portable password input<a class="headerlink" href="#module-getpass" title="Permalink to this headline">¶</a></h1>
<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><span class="optional">[</span><em>prompt</em><span class="optional">[</span>, <em>stream</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#getpass.getpass" title="Permalink to this definition">¶</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>.  <em>stream</em> defaults to the
controlling terminal (/dev/tty) 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="versionchanged">
<p><span class="versionmodified">Changed in version 2.5: </span>The <em>stream</em> parameter was added.</p>
</div>
<div class="versionchanged">
<p><span class="versionmodified">Changed in version 2.6: </span>On Unix it defaults to using /dev/tty before falling back
to <code class="docutils literal notranslate"><span class="pre">sys.stdin</span></code> and <code class="docutils literal notranslate"><span class="pre">sys.stderr</span></code>.</p>
</div>
<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">¶</a></dt>
<dd><p>A <a class="reference internal" href="exceptions.html#exceptions.UserWarning" title="exceptions.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">¶</a></dt>
<dd><p>Return the “login name” 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>
</dd></dl>

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