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Python 3

Figure 13

#Here we will use a slightly different script so that
#It can be used to install

bl_info = {
	"name": "White Opener",
	"category": "Object",
}

import bpy  
  
class WhitePawnOpener(bpy.types.Operator): 
    """White Pawn Opener"""  #Blender uses this as tool-tip
    bl_idname = "object.whitepawnopener_operator"  
    bl_label = "White Pawn Opener"
    bl_options = {'REGISTER', 'UNDO'}
  
    def execute(self, context):  
        context.active_object.location.y += 5.50  
        return {'FINISHED'}  
  
def add_object_button(self, context):  
    self.layout.operator(  
        WhitePawnOpener.bl_idname,  
        text=WhitePawnOpener.__doc__,  
        icon='PLUGIN')  
  
def register():  
    bpy.utils.register_class(WhitePawnOpener)
    bpy.types.VIEW3D_MT_object.append(add_object_button)

def unregister():
    bpy.utils.unregister_class(WhitePawnOpener)
	
if __name__ == "__main__":  
    register()  

Description

This is used as an example in the new book on extending blender called "Blender Meets Python". The code is released under the latest GPL.
https://snipt.net/embed/28d4c179ced3eb15e52f881108eb745c/
/raw/28d4c179ced3eb15e52f881108eb745c/
28d4c179ced3eb15e52f881108eb745c
python3
Python 3
35
2019-07-20T11:36:44
True
False
False
/api/public/snipt/62007/
-3248
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a> <a href="#L-14">14</a> <a href="#L-15">15</a> <a href="#L-16">16</a> <a href="#L-17">17</a> <a href="#L-18">18</a> <a href="#L-19">19</a> <a href="#L-20">20</a> <a href="#L-21">21</a> <a href="#L-22">22</a> <a href="#L-23">23</a> <a href="#L-24">24</a> <a href="#L-25">25</a> <a href="#L-26">26</a> <a href="#L-27">27</a> <a href="#L-28">28</a> <a href="#L-29">29</a> <a href="#L-30">30</a> <a href="#L-31">31</a> <a href="#L-32">32</a> <a href="#L-33">33</a> <a href="#L-34">34</a> <a href="#L-35">35</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="c1">#Here we will use a slightly different script so that</span> </span><span id="L-2"><a name="L-2"></a><span class="c1">#It can be used to install</span> </span><span id="L-3"><a name="L-3"></a> </span><span id="L-4"><a name="L-4"></a><span class="n">bl_info</span> <span class="o">=</span> <span class="p">{</span> </span><span id="L-5"><a name="L-5"></a> <span class="s2">&quot;name&quot;</span><span class="p">:</span> <span class="s2">&quot;White Opener&quot;</span><span class="p">,</span> </span><span id="L-6"><a name="L-6"></a> <span class="s2">&quot;category&quot;</span><span class="p">:</span> <span class="s2">&quot;Object&quot;</span><span class="p">,</span> </span><span id="L-7"><a name="L-7"></a><span class="p">}</span> </span><span id="L-8"><a name="L-8"></a> </span><span id="L-9"><a name="L-9"></a><span class="kn">import</span> <span class="nn">bpy</span> </span><span id="L-10"><a name="L-10"></a> </span><span id="L-11"><a name="L-11"></a><span class="k">class</span> <span class="nc">WhitePawnOpener</span><span class="p">(</span><span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">Operator</span><span class="p">):</span> </span><span id="L-12"><a name="L-12"></a> <span class="sd">&quot;&quot;&quot;White Pawn Opener&quot;&quot;&quot;</span> <span class="c1">#Blender uses this as tool-tip</span> </span><span id="L-13"><a name="L-13"></a> <span class="n">bl_idname</span> <span class="o">=</span> <span class="s2">&quot;object.whitepawnopener_operator&quot;</span> </span><span id="L-14"><a name="L-14"></a> <span class="n">bl_label</span> <span class="o">=</span> <span class="s2">&quot;White Pawn Opener&quot;</span> </span><span id="L-15"><a name="L-15"></a> <span class="n">bl_options</span> <span class="o">=</span> <span class="p">{</span><span class="s1">&#39;REGISTER&#39;</span><span class="p">,</span> <span class="s1">&#39;UNDO&#39;</span><span class="p">}</span> </span><span id="L-16"><a name="L-16"></a> </span><span id="L-17"><a name="L-17"></a> <span class="k">def</span> <span class="nf">execute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> </span><span id="L-18"><a name="L-18"></a> <span class="n">context</span><span class="o">.</span><span class="n">active_object</span><span class="o">.</span><span class="n">location</span><span class="o">.</span><span class="n">y</span> <span class="o">+=</span> <span class="mf">5.50</span> </span><span id="L-19"><a name="L-19"></a> <span class="k">return</span> <span class="p">{</span><span class="s1">&#39;FINISHED&#39;</span><span class="p">}</span> </span><span id="L-20"><a name="L-20"></a> </span><span id="L-21"><a name="L-21"></a><span class="k">def</span> <span class="nf">add_object_button</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> </span><span id="L-22"><a name="L-22"></a> <span class="bp">self</span><span class="o">.</span><span class="n">layout</span><span class="o">.</span><span class="n">operator</span><span class="p">(</span> </span><span id="L-23"><a name="L-23"></a> <span class="n">WhitePawnOpener</span><span class="o">.</span><span class="n">bl_idname</span><span class="p">,</span> </span><span id="L-24"><a name="L-24"></a> <span class="n">text</span><span class="o">=</span><span class="n">WhitePawnOpener</span><span class="o">.</span><span class="n">__doc__</span><span class="p">,</span> </span><span id="L-25"><a name="L-25"></a> <span class="n">icon</span><span class="o">=</span><span class="s1">&#39;PLUGIN&#39;</span><span class="p">)</span> </span><span id="L-26"><a name="L-26"></a> </span><span id="L-27"><a name="L-27"></a><span class="k">def</span> <span class="nf">register</span><span class="p">():</span> </span><span id="L-28"><a name="L-28"></a> <span class="n">bpy</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">register_class</span><span class="p">(</span><span class="n">WhitePawnOpener</span><span class="p">)</span> </span><span id="L-29"><a name="L-29"></a> <span class="n">bpy</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">VIEW3D_MT_object</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">add_object_button</span><span class="p">)</span> </span><span id="L-30"><a name="L-30"></a> </span><span id="L-31"><a name="L-31"></a><span class="k">def</span> <span class="nf">unregister</span><span class="p">():</span> </span><span id="L-32"><a name="L-32"></a> <span class="n">bpy</span><span class="o">.</span><span class="n">utils</span><span class="o">.</span><span class="n">unregister_class</span><span class="p">(</span><span class="n">WhitePawnOpener</span><span class="p">)</span> </span><span id="L-33"><a name="L-33"></a> </span><span id="L-34"><a name="L-34"></a><span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s2">&quot;__main__&quot;</span><span class="p">:</span> </span><span id="L-35"><a name="L-35"></a> <span class="n">register</span><span class="p">()</span> </span></pre></div> </td></tr></table>
Blender, Pawn, Python, Register