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<section id="pythondialog-specific-exceptions">
<h1>pythondialog-specific exceptions<a class="headerlink" href="#pythondialog-specific-exceptions" title="Permalink to this heading">¶</a></h1>
<section id="class-hierarchy">
<h2>Class hierarchy<a class="headerlink" href="#class-hierarchy" title="Permalink to this heading">¶</a></h2>
<p>Here is the hierarchy of notable exceptions raised by this module:</p>
<div class="line-block">
<div class="line"><a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-exc docutils literal notranslate"><span class="pre">error</span></code></a></div>
<div class="line-block">
<div class="line"><a class="reference internal" href="#dialog.ExecutableNotFound" title="dialog.ExecutableNotFound"><code class="xref py py-exc docutils literal notranslate"><span class="pre">ExecutableNotFound</span></code></a></div>
<div class="line"><a class="reference internal" href="#dialog.BadPythonDialogUsage" title="dialog.BadPythonDialogUsage"><code class="xref py py-exc docutils literal notranslate"><span class="pre">BadPythonDialogUsage</span></code></a></div>
<div class="line"><a class="reference internal" href="#dialog.PythonDialogSystemError" title="dialog.PythonDialogSystemError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogSystemError</span></code></a></div>
<div class="line-block">
<div class="line"><a class="reference internal" href="#dialog.PythonDialogOSError" title="dialog.PythonDialogOSError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogOSError</span></code></a></div>
<div class="line-block">
<div class="line"><a class="reference internal" href="#dialog.PythonDialogIOError" title="dialog.PythonDialogIOError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogIOError</span></code></a> (should not be raised starting from
Python 3.3, as <a class="reference external" href="file:///usr/share/doc/python3/html/library/exceptions.html#IOError" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">IOError</span></code></a> becomes
an alias of <a class="reference external" href="file:///usr/share/doc/python3/html/library/exceptions.html#OSError" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OSError</span></code></a>)</div>
</div>
<div class="line"><a class="reference internal" href="#dialog.PythonDialogErrorBeforeExecInChildProcess" title="dialog.PythonDialogErrorBeforeExecInChildProcess"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogErrorBeforeExecInChildProcess</span></code></a></div>
<div class="line"><a class="reference internal" href="#dialog.PythonDialogReModuleError" title="dialog.PythonDialogReModuleError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogReModuleError</span></code></a></div>
</div>
<div class="line"><a class="reference internal" href="#dialog.UnexpectedDialogOutput" title="dialog.UnexpectedDialogOutput"><code class="xref py py-exc docutils literal notranslate"><span class="pre">UnexpectedDialogOutput</span></code></a></div>
<div class="line"><a class="reference internal" href="#dialog.DialogTerminatedBySignal" title="dialog.DialogTerminatedBySignal"><code class="xref py py-exc docutils literal notranslate"><span class="pre">DialogTerminatedBySignal</span></code></a></div>
<div class="line"><a class="reference internal" href="#dialog.DialogError" title="dialog.DialogError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">DialogError</span></code></a></div>
<div class="line"><a class="reference internal" href="#dialog.UnableToRetrieveBackendVersion" title="dialog.UnableToRetrieveBackendVersion"><code class="xref py py-exc docutils literal notranslate"><span class="pre">UnableToRetrieveBackendVersion</span></code></a></div>
<div class="line"><a class="reference internal" href="#dialog.UnableToParseBackendVersion" title="dialog.UnableToParseBackendVersion"><code class="xref py py-exc docutils literal notranslate"><span class="pre">UnableToParseBackendVersion</span></code></a></div>
<div class="line-block">
<div class="line"><a class="reference internal" href="#dialog.UnableToParseDialogBackendVersion" title="dialog.UnableToParseDialogBackendVersion"><code class="xref py py-exc docutils literal notranslate"><span class="pre">UnableToParseDialogBackendVersion</span></code></a></div>
</div>
<div class="line"><a class="reference internal" href="#dialog.InadequateBackendVersion" title="dialog.InadequateBackendVersion"><code class="xref py py-exc docutils literal notranslate"><span class="pre">InadequateBackendVersion</span></code></a></div>
<div class="line"><a class="reference internal" href="#dialog.PythonDialogBug" title="dialog.PythonDialogBug"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogBug</span></code></a></div>
<div class="line"><a class="reference internal" href="#dialog.ProbablyPythonBug" title="dialog.ProbablyPythonBug"><code class="xref py py-exc docutils literal notranslate"><span class="pre">ProbablyPythonBug</span></code></a></div>
</div>
</div>
<p>As you can see, every exception <em>exc</em> among them verifies:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="nb">issubclass</span><span class="p">(</span><span class="n">exc</span><span class="p">,</span> <span class="n">error</span><span class="p">)</span>
</pre></div>
</div>
<p>so if you don’t need fine-grained error handling, simply catch <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-exc docutils literal notranslate"><span class="pre">error</span></code></a>
(which will probably be accessible as <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-exc docutils literal notranslate"><span class="pre">dialog.error</span></code></a> from your program)
and you should be safe.</p>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in version 2.12: </span><a class="reference internal" href="#dialog.PythonDialogIOError" title="dialog.PythonDialogIOError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogIOError</span></code></a> is now a subclass of <a class="reference internal" href="#dialog.PythonDialogOSError" title="dialog.PythonDialogOSError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogOSError</span></code></a>
in order to help with the transition from <a class="reference external" href="file:///usr/share/doc/python3/html/library/exceptions.html#IOError" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">IOError</span></code></a> to <a class="reference external" href="file:///usr/share/doc/python3/html/library/exceptions.html#OSError" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OSError</span></code></a>
in the Python language. With this change, you can safely replace <code class="docutils literal notranslate"><span class="pre">except</span>
<span class="pre">PythonDialogIOError</span></code> clauses with <code class="docutils literal notranslate"><span class="pre">except</span> <span class="pre">PythonDialogOSError</span></code> even if
running under Python < 3.3.</p>
</div>
</section>
<section id="detailed-list">
<h2>Detailed list<a class="headerlink" href="#detailed-list" title="Permalink to this heading">¶</a></h2>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.error">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">error</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#error"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.error" title="Permalink to this definition">¶</a></dt>
<dd><p>Base class for exceptions in pythondialog.</p>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.ExecutableNotFound">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">ExecutableNotFound</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#ExecutableNotFound"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.ExecutableNotFound" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-class docutils literal notranslate"><span class="pre">error</span></code></a></p>
<p>Exception raised when the <strong class="program">dialog</strong> executable can’t be found.</p>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.BadPythonDialogUsage">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">BadPythonDialogUsage</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#BadPythonDialogUsage"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.BadPythonDialogUsage" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-class docutils literal notranslate"><span class="pre">error</span></code></a></p>
<p>Exception raised when pythondialog is used in an incorrect way.</p>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.PythonDialogSystemError">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">PythonDialogSystemError</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#PythonDialogSystemError"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.PythonDialogSystemError" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-class docutils literal notranslate"><span class="pre">error</span></code></a></p>
<p>Exception raised when pythondialog cannot perform a “system operation” (e.g., a system call) that should work in “normal” situations.</p>
<p>This is a convenience exception: <a class="reference internal" href="#dialog.PythonDialogIOError" title="dialog.PythonDialogIOError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogIOError</span></code></a>,
<a class="reference internal" href="#dialog.PythonDialogOSError" title="dialog.PythonDialogOSError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogOSError</span></code></a> and
<a class="reference internal" href="#dialog.PythonDialogErrorBeforeExecInChildProcess" title="dialog.PythonDialogErrorBeforeExecInChildProcess"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogErrorBeforeExecInChildProcess</span></code></a> all derive from
this exception. As a consequence, watching for
<a class="reference internal" href="#dialog.PythonDialogSystemError" title="dialog.PythonDialogSystemError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogSystemError</span></code></a> instead of the aformentioned
exceptions is enough if you don’t need precise details about these
kinds of errors.</p>
<p>Don’t confuse this exception with Python’s builtin
<a class="reference external" href="file:///usr/share/doc/python3/html/library/exceptions.html#SystemError" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">SystemError</span></code></a> exception.</p>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.PythonDialogOSError">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">PythonDialogOSError</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#PythonDialogOSError"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.PythonDialogOSError" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.PythonDialogSystemError" title="dialog.PythonDialogSystemError"><code class="xref py py-class docutils literal notranslate"><span class="pre">PythonDialogSystemError</span></code></a></p>
<p>Exception raised when pythondialog catches an <a class="reference external" href="file:///usr/share/doc/python3/html/library/exceptions.html#OSError" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OSError</span></code></a> exception that should be passed to the calling program.</p>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.PythonDialogIOError">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">PythonDialogIOError</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#PythonDialogIOError"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.PythonDialogIOError" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.PythonDialogOSError" title="dialog.PythonDialogOSError"><code class="xref py py-class docutils literal notranslate"><span class="pre">PythonDialogOSError</span></code></a></p>
<p>Exception raised when pythondialog catches an <a class="reference external" href="file:///usr/share/doc/python3/html/library/exceptions.html#IOError" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">IOError</span></code></a> exception that should be passed to the calling program.</p>
<p>This exception should not be raised starting from Python 3.3, as the
built-in exception <a class="reference external" href="file:///usr/share/doc/python3/html/library/exceptions.html#IOError" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">IOError</span></code></a> becomes an alias of
<a class="reference external" href="file:///usr/share/doc/python3/html/library/exceptions.html#OSError" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OSError</span></code></a>.</p>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in version 2.12: </span><a class="reference internal" href="#dialog.PythonDialogIOError" title="dialog.PythonDialogIOError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogIOError</span></code></a> is now a subclass of
<a class="reference internal" href="#dialog.PythonDialogOSError" title="dialog.PythonDialogOSError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">PythonDialogOSError</span></code></a> in order to help with the transition
from <a class="reference external" href="file:///usr/share/doc/python3/html/library/exceptions.html#IOError" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">IOError</span></code></a> to <a class="reference external" href="file:///usr/share/doc/python3/html/library/exceptions.html#OSError" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OSError</span></code></a> in the Python language.
With this change, you can safely replace <code class="docutils literal notranslate"><span class="pre">except</span>
<span class="pre">PythonDialogIOError</span></code> clauses with <code class="docutils literal notranslate"><span class="pre">except</span> <span class="pre">PythonDialogOSError</span></code>
even if running under Python < 3.3.</p>
</div>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.PythonDialogErrorBeforeExecInChildProcess">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">PythonDialogErrorBeforeExecInChildProcess</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#PythonDialogErrorBeforeExecInChildProcess"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.PythonDialogErrorBeforeExecInChildProcess" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.PythonDialogSystemError" title="dialog.PythonDialogSystemError"><code class="xref py py-class docutils literal notranslate"><span class="pre">PythonDialogSystemError</span></code></a></p>
<p>Exception raised when an exception is caught in a child process before the exec sytem call (included).</p>
<p>This can happen in uncomfortable situations such as:</p>
<blockquote>
<div><ul class="simple">
<li><p>the system being out of memory;</p></li>
<li><p>the maximum number of open file descriptors being reached;</p></li>
<li><p>the <strong class="program">dialog</strong>-like program being removed (or made
non-executable) between the time we found it with
<code class="xref py py-func docutils literal notranslate"><span class="pre">_find_in_path()</span></code> and the time the exec system call
attempted to execute it;</p></li>
<li><p>the Python program trying to call the <strong class="program">dialog</strong>-like
program with arguments that cannot be represented in the user’s
locale (<span class="target" id="index-0"></span><code class="xref std std-envvar docutils literal notranslate"><span class="pre">LC_CTYPE</span></code>).</p></li>
</ul>
</div></blockquote>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.PythonDialogReModuleError">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">PythonDialogReModuleError</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#PythonDialogReModuleError"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.PythonDialogReModuleError" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.PythonDialogSystemError" title="dialog.PythonDialogSystemError"><code class="xref py py-class docutils literal notranslate"><span class="pre">PythonDialogSystemError</span></code></a></p>
<p>Exception raised when pythondialog catches a <a class="reference external" href="file:///usr/share/doc/python3/html/library/re.html#re.error" title="(in Python v3.11)"><code class="xref py py-exc docutils literal notranslate"><span class="pre">re.error</span></code></a> exception.</p>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.UnexpectedDialogOutput">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">UnexpectedDialogOutput</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#UnexpectedDialogOutput"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.UnexpectedDialogOutput" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-class docutils literal notranslate"><span class="pre">error</span></code></a></p>
<p>Exception raised when the <strong class="program">dialog</strong>-like program returns something not expected by pythondialog.</p>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.DialogTerminatedBySignal">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">DialogTerminatedBySignal</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#DialogTerminatedBySignal"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.DialogTerminatedBySignal" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-class docutils literal notranslate"><span class="pre">error</span></code></a></p>
<p>Exception raised when the <strong class="program">dialog</strong>-like program is terminated by a signal.</p>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.DialogError">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">DialogError</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#DialogError"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.DialogError" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-class docutils literal notranslate"><span class="pre">error</span></code></a></p>
<p>Exception raised when the <strong class="program">dialog</strong>-like program exits with the code indicating an error.</p>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.UnableToRetrieveBackendVersion">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">UnableToRetrieveBackendVersion</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#UnableToRetrieveBackendVersion"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.UnableToRetrieveBackendVersion" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-class docutils literal notranslate"><span class="pre">error</span></code></a></p>
<p>Exception raised when we cannot retrieve the version string of the <strong class="program">dialog</strong>-like backend.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.14.</span></p>
</div>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.UnableToParseBackendVersion">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">UnableToParseBackendVersion</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#UnableToParseBackendVersion"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.UnableToParseBackendVersion" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-class docutils literal notranslate"><span class="pre">error</span></code></a></p>
<p>Exception raised when we cannot parse the version string of the <strong class="program">dialog</strong>-like backend.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.14.</span></p>
</div>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.UnableToParseDialogBackendVersion">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">UnableToParseDialogBackendVersion</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#UnableToParseDialogBackendVersion"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.UnableToParseDialogBackendVersion" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.UnableToParseBackendVersion" title="dialog.UnableToParseBackendVersion"><code class="xref py py-class docutils literal notranslate"><span class="pre">UnableToParseBackendVersion</span></code></a></p>
<p>Exception raised when we cannot parse the version string of the <strong class="program">dialog</strong> backend.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.14.</span></p>
</div>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.InadequateBackendVersion">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">InadequateBackendVersion</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#InadequateBackendVersion"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.InadequateBackendVersion" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-class docutils literal notranslate"><span class="pre">error</span></code></a></p>
<p>Exception raised when the backend version in use is inadequate in a given situation.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.14.</span></p>
</div>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.PythonDialogBug">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">PythonDialogBug</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#PythonDialogBug"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.PythonDialogBug" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-class docutils literal notranslate"><span class="pre">error</span></code></a></p>
<p>Exception raised when pythondialog finds a bug in his own code.</p>
</dd></dl>
<dl class="py exception">
<dt class="sig sig-object py" id="dialog.ProbablyPythonBug">
<em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">dialog.</span></span><span class="sig-name descname"><span class="pre">ProbablyPythonBug</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/dialog.html#ProbablyPythonBug"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#dialog.ProbablyPythonBug" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#dialog.error" title="dialog.error"><code class="xref py py-class docutils literal notranslate"><span class="pre">error</span></code></a></p>
<p>Exception raised when pythondialog behaves in a way that seems to indicate a Python bug.</p>
</dd></dl>
</section>
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<h3><a href="index.html">Table of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">pythondialog-specific exceptions</a><ul>
<li><a class="reference internal" href="#class-hierarchy">Class hierarchy</a></li>
<li><a class="reference internal" href="#detailed-list">Detailed list</a><ul>
<li><a class="reference internal" href="#dialog.error"><code class="docutils literal notranslate"><span class="pre">error</span></code></a></li>
<li><a class="reference internal" href="#dialog.ExecutableNotFound"><code class="docutils literal notranslate"><span class="pre">ExecutableNotFound</span></code></a></li>
<li><a class="reference internal" href="#dialog.BadPythonDialogUsage"><code class="docutils literal notranslate"><span class="pre">BadPythonDialogUsage</span></code></a></li>
<li><a class="reference internal" href="#dialog.PythonDialogSystemError"><code class="docutils literal notranslate"><span class="pre">PythonDialogSystemError</span></code></a></li>
<li><a class="reference internal" href="#dialog.PythonDialogOSError"><code class="docutils literal notranslate"><span class="pre">PythonDialogOSError</span></code></a></li>
<li><a class="reference internal" href="#dialog.PythonDialogIOError"><code class="docutils literal notranslate"><span class="pre">PythonDialogIOError</span></code></a></li>
<li><a class="reference internal" href="#dialog.PythonDialogErrorBeforeExecInChildProcess"><code class="docutils literal notranslate"><span class="pre">PythonDialogErrorBeforeExecInChildProcess</span></code></a></li>
<li><a class="reference internal" href="#dialog.PythonDialogReModuleError"><code class="docutils literal notranslate"><span class="pre">PythonDialogReModuleError</span></code></a></li>
<li><a class="reference internal" href="#dialog.UnexpectedDialogOutput"><code class="docutils literal notranslate"><span class="pre">UnexpectedDialogOutput</span></code></a></li>
<li><a class="reference internal" href="#dialog.DialogTerminatedBySignal"><code class="docutils literal notranslate"><span class="pre">DialogTerminatedBySignal</span></code></a></li>
<li><a class="reference internal" href="#dialog.DialogError"><code class="docutils literal notranslate"><span class="pre">DialogError</span></code></a></li>
<li><a class="reference internal" href="#dialog.UnableToRetrieveBackendVersion"><code class="docutils literal notranslate"><span class="pre">UnableToRetrieveBackendVersion</span></code></a></li>
<li><a class="reference internal" href="#dialog.UnableToParseBackendVersion"><code class="docutils literal notranslate"><span class="pre">UnableToParseBackendVersion</span></code></a></li>
<li><a class="reference internal" href="#dialog.UnableToParseDialogBackendVersion"><code class="docutils literal notranslate"><span class="pre">UnableToParseDialogBackendVersion</span></code></a></li>
<li><a class="reference internal" href="#dialog.InadequateBackendVersion"><code class="docutils literal notranslate"><span class="pre">InadequateBackendVersion</span></code></a></li>
<li><a class="reference internal" href="#dialog.PythonDialogBug"><code class="docutils literal notranslate"><span class="pre">PythonDialogBug</span></code></a></li>
<li><a class="reference internal" href="#dialog.ProbablyPythonBug"><code class="docutils literal notranslate"><span class="pre">ProbablyPythonBug</span></code></a></li>
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<p class="topless"><a href="DialogBackendVersion.html"
title="previous chapter">The <code class="xref py py-class docutils literal notranslate"><span class="pre">DialogBackendVersion</span></code> class</a></p>
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