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<div class="section" id="plotly-express-pie">
<h1><a class="reference internal" href="plotly.express.html#module-plotly.express" title="plotly.express"><code class="xref py py-mod docutils literal notranslate"><span class="pre">plotly.express</span></code></a>.pie<a class="headerlink" href="#plotly-express-pie" title="Permalink to this headline">¶</a></h1>
<dl class="function">
<dt id="plotly.express.pie">
<code class="sig-prename descclassname">plotly.express.</code><code class="sig-name descname">pie</code><span class="sig-paren">(</span><em class="sig-param">data_frame=None</em>, <em class="sig-param">names=None</em>, <em class="sig-param">values=None</em>, <em class="sig-param">color=None</em>, <em class="sig-param">color_discrete_sequence=None</em>, <em class="sig-param">color_discrete_map={}</em>, <em class="sig-param">hover_name=None</em>, <em class="sig-param">hover_data=None</em>, <em class="sig-param">custom_data=None</em>, <em class="sig-param">labels={}</em>, <em class="sig-param">title=None</em>, <em class="sig-param">template=None</em>, <em class="sig-param">width=None</em>, <em class="sig-param">height=None</em>, <em class="sig-param">opacity=None</em>, <em class="sig-param">hole=None</em><span class="sig-paren">)</span><a class="headerlink" href="#plotly.express.pie" title="Permalink to this definition">¶</a></dt>
<dd><blockquote>
<div><p>In a pie plot, each row of <code class="docutils literal notranslate"><span class="pre">data_frame</span></code> is represented as a sector of a
pie.</p>
</div></blockquote>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>data_frame</strong> (<em>DataFrame</em><em> or </em><em>array-like</em><em> or </em><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.8)"><em>dict</em></a>) – This argument needs to be passed for column names (and not keyword
names) to be used. Array-like and dict are tranformed internally to a
pandas DataFrame. Optional: if missing, a DataFrame gets constructed
under the hood using the other arguments.</p></li>
<li><p><strong>names</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em> or </em><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a><em> or </em><em>Series</em><em> or </em><em>array-like</em>) – Either a name of a column in <code class="docutils literal notranslate"><span class="pre">data_frame</span></code>, or a pandas Series or
array_like object. Values from this column or array_like are used as
labels for sectors.</p></li>
<li><p><strong>values</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em> or </em><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a><em> or </em><em>Series</em><em> or </em><em>array-like</em>) – Either a name of a column in <code class="docutils literal notranslate"><span class="pre">data_frame</span></code>, or a pandas Series or
array_like object. Values from this column or array_like are used to
set values associated to sectors.</p></li>
<li><p><strong>color</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em> or </em><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a><em> or </em><em>Series</em><em> or </em><em>array-like</em>) – Either a name of a column in <code class="docutils literal notranslate"><span class="pre">data_frame</span></code>, or a pandas Series or
array_like object. Values from this column or array_like are used to
assign color to marks.</p></li>
<li><p><strong>color_discrete_sequence</strong> (<em>list of str</em>) – Strings should define valid CSS-colors. When <code class="docutils literal notranslate"><span class="pre">color</span></code> is set and the
values in the corresponding column are not numeric, values in that
column are assigned colors by cycling through <code class="docutils literal notranslate"><span class="pre">color_discrete_sequence</span></code>
in the order described in <code class="docutils literal notranslate"><span class="pre">category_orders</span></code>, unless the value of
<code class="docutils literal notranslate"><span class="pre">color</span></code> is a key in <code class="docutils literal notranslate"><span class="pre">color_discrete_map</span></code>. Various useful color
sequences are available in the <code class="docutils literal notranslate"><span class="pre">plotly.express.colors</span></code> submodules,
specifically <code class="docutils literal notranslate"><span class="pre">plotly.express.colors.qualitative</span></code>.</p></li>
<li><p><strong>color_discrete_map</strong> (dict with str keys and str values (default <code class="docutils literal notranslate"><span class="pre">{}</span></code>)) – String values should define valid CSS-colors Used to override
<code class="docutils literal notranslate"><span class="pre">color_discrete_sequence</span></code> to assign a specific colors to marks
corresponding with specific values. Keys in <code class="docutils literal notranslate"><span class="pre">color_discrete_map</span></code> should
be values in the column denoted by <code class="docutils literal notranslate"><span class="pre">color</span></code>.</p></li>
<li><p><strong>hover_name</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em> or </em><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a><em> or </em><em>Series</em><em> or </em><em>array-like</em>) – Either a name of a column in <code class="docutils literal notranslate"><span class="pre">data_frame</span></code>, or a pandas Series or
array_like object. Values from this column or array_like appear in bold
in the hover tooltip.</p></li>
<li><p><strong>hover_data</strong> (<em>list of str</em><em> or </em><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a><em>, or </em><em>Series</em><em> or </em><em>array-like</em><em>, or </em><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.8)"><em>dict</em></a>) – Either a list of names of columns in <code class="docutils literal notranslate"><span class="pre">data_frame</span></code>, or pandas Series, or
array_like objects or a dict with column names as keys, with values
True (for default formatting) False (in order to remove this column
from hover information), or a formatting string, for example ‘:.3f’ or
‘<a href="#id1"><span class="problematic" id="id2">|</span></a>%a’ or list-like data to appear in the hover tooltip or tuples with a
bool or formatting string as first element, and list-like data to
appear in hover as second element Values from these columns appear as
extra data in the hover tooltip.</p></li>
<li><p><strong>custom_data</strong> (<em>list of str</em><em> or </em><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a><em>, or </em><em>Series</em><em> or </em><em>array-like</em>) – Either names of columns in <code class="docutils literal notranslate"><span class="pre">data_frame</span></code>, or pandas Series, or
array_like objects Values from these columns are extra data, to be used
in widgets or Dash callbacks for example. This data is not user-visible
but is included in events emitted by the figure (lasso selection etc.)</p></li>
<li><p><strong>labels</strong> (dict with str keys and str values (default <code class="docutils literal notranslate"><span class="pre">{}</span></code>)) – By default, column names are used in the figure for axis titles, legend
entries and hovers. This parameter allows this to be overridden. The
keys of this dict should correspond to column names, and the values
should correspond to the desired label to be displayed.</p></li>
<li><p><strong>title</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The figure title.</p></li>
<li><p><strong>template</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em> or </em><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.8)"><em>dict</em></a><em> or </em><em>plotly.graph_objects.layout.Template instance</em>) – The figure template name (must be a key in plotly.io.templates) or
definition.</p></li>
<li><p><strong>width</strong> (int (default <code class="docutils literal notranslate"><span class="pre">None</span></code>)) – The figure width in pixels.</p></li>
<li><p><strong>height</strong> (int (default <code class="docutils literal notranslate"><span class="pre">None</span></code>)) – The figure height in pixels.</p></li>
<li><p><strong>opacity</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#float" title="(in Python v3.8)"><em>float</em></a>) – Value between 0 and 1. Sets the opacity for markers.</p></li>
<li><p><strong>hole</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#float" title="(in Python v3.8)"><em>float</em></a>) – </p></li>
<li><p><strong>missing from map</strong><strong>)</strong> (<em>(</em><em>documentation</em>) – </p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p></p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p><a class="reference internal" href="plotly.graph_objects.html#plotly.graph_objects.Figure" title="plotly.graph_objects.Figure">plotly.graph_objects.Figure</a></p>
</dd>
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