Hugging Face's logo

Datasets:
introvoyz041
/
mujoko

Modalities:
3D
Image
Formats:
imagefolder
Size:
< 1K
Libraries:
Datasets
License:
Dataset card Data Studio Files
xet
Community
mujoko
File size: 42,663 Bytes
1603fe5
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
 


<!DOCTYPE html>
<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
<head>
  <meta charset="utf-8">
  
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  
  <title>mujoco_py.builder &mdash; mujoco-py 1.50.1.0 documentation</title>
  

  
  
  
  

  

  
  
    

  

  
  
    <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
  

  

  
        <link rel="index" title="Index"
              href="../../genindex.html"/>
        <link rel="search" title="Search" href="../../search.html"/>
    <link rel="top" title="mujoco-py 1.50.1.0 documentation" href="../../index.html"/>
        <link rel="up" title="Module code" href="../index.html"/> 

  
  <script src="../../_static/js/modernizr.min.js"></script>

</head>

<body class="wy-body-for-nav" role="document">

   
  <div class="wy-grid-for-nav">

    
    <nav data-toggle="wy-nav-shift" class="wy-nav-side">
      <div class="wy-side-scroll">
        <div class="wy-side-nav-search">
          

          
            <a href="../../index.html" class="icon icon-home"> mujoco-py
          

          
          </a>

          
            
            
              <div class="version">
                1.50.1.0
              </div>
            
          

          
<div role="search">
  <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
    <input type="text" name="q" placeholder="Search docs" />
    <input type="hidden" name="check_keywords" value="yes" />
    <input type="hidden" name="area" value="default" />
  </form>
</div>

          
        </div>

        <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
          
            
            
              
            
            
              <ul>
<li class="toctree-l1"><a class="reference internal" href="../../reference.html">API reference</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../internals.html">Internals</a></li>
</ul>

            
          
        </div>
      </div>
    </nav>

    <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">

      
      <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
        
          <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
          <a href="../../index.html">mujoco-py</a>
        
      </nav>


      
      <div class="wy-nav-content">
        <div class="rst-content">
          















<div role="navigation" aria-label="breadcrumbs navigation">

  <ul class="wy-breadcrumbs">
    
      <li><a href="../../index.html">Docs</a> &raquo;</li>
        
          <li><a href="../index.html">Module code</a> &raquo;</li>
        
      <li>mujoco_py.builder</li>
    
    
      <li class="wy-breadcrumbs-aside">
        
            
        
      </li>
    
  </ul>

  
  <hr/>
</div>
          <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
           <div itemprop="articleBody">
            
  <h1>Source code for mujoco_py.builder</h1><div class="highlight"><pre>
<span></span><span class="kn">import</span> <span class="nn">distutils</span>
<span class="kn">import</span> <span class="nn">imp</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">import</span> <span class="nn">shutil</span>
<span class="kn">import</span> <span class="nn">subprocess</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">from</span> <span class="nn">distutils.core</span> <span class="k">import</span> <span class="n">Extension</span>
<span class="kn">from</span> <span class="nn">distutils.dist</span> <span class="k">import</span> <span class="n">Distribution</span>
<span class="kn">from</span> <span class="nn">distutils.sysconfig</span> <span class="k">import</span> <span class="n">customize_compiler</span>
<span class="kn">from</span> <span class="nn">os.path</span> <span class="k">import</span> <span class="n">abspath</span><span class="p">,</span> <span class="n">dirname</span><span class="p">,</span> <span class="n">exists</span><span class="p">,</span> <span class="n">join</span><span class="p">,</span> <span class="n">getmtime</span>

<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
<span class="kn">from</span> <span class="nn">Cython.Build</span> <span class="k">import</span> <span class="n">cythonize</span>
<span class="kn">from</span> <span class="nn">Cython.Distutils.old_build_ext</span> <span class="k">import</span> <span class="n">old_build_ext</span> <span class="k">as</span> <span class="n">build_ext</span>

<span class="kn">from</span> <span class="nn">mujoco_py.utils</span> <span class="k">import</span> <span class="n">discover_mujoco</span>


<span class="k">def</span> <span class="nf">load_cython_ext</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">):</span>
    <span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    Loads the cymj Cython extension. This is safe to be called from</span>
<span class="sd">    multiple processes running on the same machine.</span>

<span class="sd">    Cython only gives us back the raw path, regardless of whether</span>
<span class="sd">    it found a cached version or actually compiled. Since we do</span>
<span class="sd">    non-idempotent postprocessing of the DLL, be extra careful</span>
<span class="sd">    to only do that once and then atomically move to the final</span>
<span class="sd">    location.</span>
<span class="sd">    &quot;&quot;&quot;</span>
    <span class="k">if</span> <span class="p">(</span><span class="s1">&#39;glfw&#39;</span> <span class="ow">in</span> <span class="n">sys</span><span class="o">.</span><span class="n">modules</span> <span class="ow">and</span>
            <span class="s1">&#39;mujoco&#39;</span> <span class="ow">in</span> <span class="n">abspath</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">modules</span><span class="p">[</span><span class="s2">&quot;glfw&quot;</span><span class="p">]</span><span class="o">.</span><span class="vm">__file__</span><span class="p">)):</span>
        <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;&#39;&#39;</span>
<span class="s1">WARNING: Existing glfw python module detected!</span>

<span class="s1">MuJoCo comes with its own version of GLFW, so it&#39;s preferable to use that one.</span>

<span class="s1">The easy solution is to `import mujoco_py` _before_ `import glfw`.</span>
<span class="s1">&#39;&#39;&#39;</span><span class="p">)</span>

    <span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span> <span class="o">==</span> <span class="s1">&#39;darwin&#39;</span><span class="p">:</span>
        <span class="n">Builder</span> <span class="o">=</span> <span class="n">MacExtensionBuilder</span>
    <span class="k">elif</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span> <span class="o">==</span> <span class="s1">&#39;linux&#39;</span><span class="p">:</span>
        <span class="k">if</span> <span class="n">exists</span><span class="p">(</span><span class="s1">&#39;/usr/local/nvidia/lib64&#39;</span><span class="p">):</span>
            <span class="n">Builder</span> <span class="o">=</span> <span class="n">LinuxGPUExtensionBuilder</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="n">Builder</span> <span class="o">=</span> <span class="n">LinuxCPUExtensionBuilder</span>
    <span class="k">elif</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s2">&quot;win&quot;</span><span class="p">):</span>
        <span class="n">Builder</span> <span class="o">=</span> <span class="n">WindowsExtensionBuilder</span>
    <span class="k">else</span><span class="p">:</span>
        <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s2">&quot;Unsupported platform </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span><span class="p">)</span>

    <span class="n">builder</span> <span class="o">=</span> <span class="n">Builder</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">)</span>

    <span class="n">cext_so_path</span> <span class="o">=</span> <span class="n">builder</span><span class="o">.</span><span class="n">build</span><span class="p">()</span>
    <span class="n">mod</span> <span class="o">=</span> <span class="n">imp</span><span class="o">.</span><span class="n">load_dynamic</span><span class="p">(</span><span class="s2">&quot;cymj&quot;</span><span class="p">,</span> <span class="n">cext_so_path</span><span class="p">)</span>
    <span class="k">return</span> <span class="n">mod</span>


<span class="k">class</span> <span class="nc">custom_build_ext</span><span class="p">(</span><span class="n">build_ext</span><span class="p">):</span>
    <span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    Custom build_ext to suppress the &quot;-Wstrict-prototypes&quot; warning.</span>
<span class="sd">    It arises from the fact that we&#39;re using C++. This seems to be</span>
<span class="sd">    the cleanest way to get rid of the extra flag.</span>

<span class="sd">    See http://stackoverflow.com/a/36293331/248400</span>
<span class="sd">    &quot;&quot;&quot;</span>

    <span class="k">def</span> <span class="nf">build_extensions</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="n">customize_compiler</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">compiler</span><span class="p">)</span>

        <span class="k">try</span><span class="p">:</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">compiler</span><span class="o">.</span><span class="n">compiler_so</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="s2">&quot;-Wstrict-prototypes&quot;</span><span class="p">)</span>
        <span class="k">except</span> <span class="p">(</span><span class="ne">AttributeError</span><span class="p">,</span> <span class="ne">ValueError</span><span class="p">):</span>
            <span class="k">pass</span>
        <span class="n">build_ext</span><span class="o">.</span><span class="n">build_extensions</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>


<span class="k">def</span> <span class="nf">fix_shared_library</span><span class="p">(</span><span class="n">so_file</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">library_path</span><span class="p">):</span>
    <span class="n">ldd_output</span> <span class="o">=</span> <span class="n">subprocess</span><span class="o">.</span><span class="n">check_output</span><span class="p">(</span>
        <span class="p">[</span><span class="s1">&#39;ldd&#39;</span><span class="p">,</span> <span class="n">so_file</span><span class="p">])</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="s1">&#39;utf-8&#39;</span><span class="p">)</span>

    <span class="k">if</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">ldd_output</span><span class="p">:</span>
        <span class="n">subprocess</span><span class="o">.</span><span class="n">check_call</span><span class="p">([</span><span class="s1">&#39;patchelf&#39;</span><span class="p">,</span>
                               <span class="s1">&#39;--remove-needed&#39;</span><span class="p">,</span>
                               <span class="n">name</span><span class="p">,</span>
                               <span class="n">so_file</span><span class="p">])</span>
    <span class="n">subprocess</span><span class="o">.</span><span class="n">check_call</span><span class="p">(</span>
        <span class="p">[</span><span class="s1">&#39;patchelf&#39;</span><span class="p">,</span> <span class="s1">&#39;--add-needed&#39;</span><span class="p">,</span>
         <span class="n">library_path</span><span class="p">,</span>
         <span class="n">so_file</span><span class="p">])</span>


<span class="k">class</span> <span class="nc">MujocoExtensionBuilder</span><span class="p">():</span>

    <span class="n">CYMJ_DIR_PATH</span> <span class="o">=</span> <span class="n">abspath</span><span class="p">(</span><span class="n">dirname</span><span class="p">(</span><span class="vm">__file__</span><span class="p">))</span>

    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mjpro_path</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">mjpro_path</span> <span class="o">=</span> <span class="n">mjpro_path</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span> <span class="o">=</span> <span class="n">Extension</span><span class="p">(</span>
            <span class="s1">&#39;mujoco_py.cymj&#39;</span><span class="p">,</span>
            <span class="n">sources</span><span class="o">=</span><span class="p">[</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">CYMJ_DIR_PATH</span><span class="p">,</span> <span class="s2">&quot;cymj.pyx&quot;</span><span class="p">)],</span>
            <span class="n">include_dirs</span><span class="o">=</span><span class="p">[</span>
                <span class="bp">self</span><span class="o">.</span><span class="n">CYMJ_DIR_PATH</span><span class="p">,</span>
                <span class="n">join</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">,</span> <span class="s1">&#39;include&#39;</span><span class="p">),</span>
                <span class="n">np</span><span class="o">.</span><span class="n">get_include</span><span class="p">(),</span>
            <span class="p">],</span>
            <span class="n">libraries</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;mujoco150&#39;</span><span class="p">],</span>
            <span class="n">library_dirs</span><span class="o">=</span><span class="p">[</span><span class="n">join</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">,</span> <span class="s1">&#39;bin&#39;</span><span class="p">)],</span>
            <span class="n">extra_compile_args</span><span class="o">=</span><span class="p">[</span>
                <span class="s1">&#39;-fopenmp&#39;</span><span class="p">,</span>  <span class="c1"># needed for OpenMP</span>
                <span class="s1">&#39;-w&#39;</span><span class="p">,</span>  <span class="c1"># suppress numpy compilation warnings</span>
            <span class="p">],</span>
            <span class="n">extra_link_args</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;-fopenmp&#39;</span><span class="p">],</span>
            <span class="n">language</span><span class="o">=</span><span class="s1">&#39;c&#39;</span><span class="p">)</span>

    <span class="k">def</span> <span class="nf">build</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="n">dist</span> <span class="o">=</span> <span class="n">Distribution</span><span class="p">({</span>
            <span class="s2">&quot;script_name&quot;</span><span class="p">:</span> <span class="kc">None</span><span class="p">,</span>
            <span class="s2">&quot;script_args&quot;</span><span class="p">:</span> <span class="p">[</span><span class="s2">&quot;build_ext&quot;</span><span class="p">]</span>
        <span class="p">})</span>
        <span class="n">dist</span><span class="o">.</span><span class="n">ext_modules</span> <span class="o">=</span> <span class="n">cythonize</span><span class="p">([</span><span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="p">])</span>
        <span class="n">dist</span><span class="o">.</span><span class="n">include_dirs</span> <span class="o">=</span> <span class="p">[]</span>
        <span class="n">dist</span><span class="o">.</span><span class="n">cmdclass</span> <span class="o">=</span> <span class="p">{</span><span class="s1">&#39;build_ext&#39;</span><span class="p">:</span> <span class="n">custom_build_ext</span><span class="p">}</span>
        <span class="n">build</span> <span class="o">=</span> <span class="n">dist</span><span class="o">.</span><span class="n">get_command_obj</span><span class="p">(</span><span class="s1">&#39;build&#39;</span><span class="p">)</span>
        <span class="c1"># following the convention of cython&#39;s pyxbuild and naming</span>
        <span class="c1"># base directory &quot;_pyxbld&quot;</span>
        <span class="n">build</span><span class="o">.</span><span class="n">build_base</span> <span class="o">=</span> <span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">CYMJ_DIR_PATH</span><span class="p">,</span> <span class="s1">&#39;generated&#39;</span><span class="p">,</span>
                                <span class="s1">&#39;_pyxbld_</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span><span class="p">)</span>
        <span class="n">dist</span><span class="o">.</span><span class="n">parse_command_line</span><span class="p">()</span>
        <span class="n">obj_build_ext</span> <span class="o">=</span> <span class="n">dist</span><span class="o">.</span><span class="n">get_command_obj</span><span class="p">(</span><span class="s2">&quot;build_ext&quot;</span><span class="p">)</span>
        <span class="n">dist</span><span class="o">.</span><span class="n">run_commands</span><span class="p">()</span>
        <span class="n">so_file_path</span><span class="p">,</span> <span class="o">=</span> <span class="n">obj_build_ext</span><span class="o">.</span><span class="n">get_outputs</span><span class="p">()</span>
        <span class="k">return</span> <span class="n">so_file_path</span>


<span class="k">class</span> <span class="nc">WindowsExtensionBuilder</span><span class="p">(</span><span class="n">MujocoExtensionBuilder</span><span class="p">):</span>

    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mjpro_path</span><span class="p">):</span>
        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">)</span>
        <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="p">[</span><span class="s2">&quot;PATH&quot;</span><span class="p">]</span> <span class="o">+=</span> <span class="s2">&quot;;&quot;</span> <span class="o">+</span> <span class="n">join</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">,</span> <span class="s2">&quot;bin&quot;</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">sources</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">CYMJ_DIR_PATH</span> <span class="o">+</span> <span class="s2">&quot;/gl/dummyshim.c&quot;</span><span class="p">)</span>


<span class="k">class</span> <span class="nc">LinuxCPUExtensionBuilder</span><span class="p">(</span><span class="n">MujocoExtensionBuilder</span><span class="p">):</span>

    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mjpro_path</span><span class="p">):</span>
        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">)</span>

        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">sources</span><span class="o">.</span><span class="n">append</span><span class="p">(</span>
            <span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">CYMJ_DIR_PATH</span><span class="p">,</span> <span class="s2">&quot;gl&quot;</span><span class="p">,</span> <span class="s2">&quot;osmesashim.c&quot;</span><span class="p">))</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">libraries</span><span class="o">.</span><span class="n">extend</span><span class="p">([</span><span class="s1">&#39;glewosmesa&#39;</span><span class="p">,</span> <span class="s1">&#39;OSMesa&#39;</span><span class="p">])</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">runtime_library_dirs</span> <span class="o">=</span> <span class="p">[</span><span class="n">join</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">,</span> <span class="s1">&#39;bin&#39;</span><span class="p">)]</span>


<span class="k">class</span> <span class="nc">LinuxGPUExtensionBuilder</span><span class="p">(</span><span class="n">MujocoExtensionBuilder</span><span class="p">):</span>

    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mjpro_path</span><span class="p">):</span>
        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">)</span>

        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">sources</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">CYMJ_DIR_PATH</span> <span class="o">+</span> <span class="s2">&quot;/gl/eglshim.c&quot;</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">include_dirs</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">CYMJ_DIR_PATH</span> <span class="o">+</span> <span class="s1">&#39;/vendor/egl&#39;</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">libraries</span><span class="o">.</span><span class="n">extend</span><span class="p">([</span><span class="s1">&#39;glewegl&#39;</span><span class="p">])</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">runtime_library_dirs</span> <span class="o">=</span> <span class="p">[</span><span class="n">join</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">,</span> <span class="s1">&#39;bin&#39;</span><span class="p">)]</span>

    <span class="k">def</span> <span class="nf">build</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="n">so_file_path</span> <span class="o">=</span> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">build</span><span class="p">()</span>
        <span class="n">nvidia_lib_dir</span> <span class="o">=</span> <span class="s1">&#39;/usr/local/nvidia/lib64/&#39;</span>
        <span class="n">fix_shared_library</span><span class="p">(</span><span class="n">so_file_path</span><span class="p">,</span> <span class="s1">&#39;libOpenGL.so&#39;</span><span class="p">,</span>
                           <span class="n">join</span><span class="p">(</span><span class="n">nvidia_lib_dir</span><span class="p">,</span> <span class="s1">&#39;libOpenGL.so.0&#39;</span><span class="p">))</span>
        <span class="n">fix_shared_library</span><span class="p">(</span><span class="n">so_file_path</span><span class="p">,</span> <span class="s1">&#39;libEGL.so&#39;</span><span class="p">,</span>
                           <span class="n">join</span><span class="p">(</span><span class="n">nvidia_lib_dir</span><span class="p">,</span> <span class="s1">&#39;libEGL.so.1&#39;</span><span class="p">))</span>
        <span class="k">return</span> <span class="n">so_file_path</span>


<span class="k">class</span> <span class="nc">MacExtensionBuilder</span><span class="p">(</span><span class="n">MujocoExtensionBuilder</span><span class="p">):</span>

    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mjpro_path</span><span class="p">):</span>
        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">)</span>

        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">sources</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">CYMJ_DIR_PATH</span> <span class="o">+</span> <span class="s2">&quot;/gl/dummyshim.c&quot;</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">libraries</span><span class="o">.</span><span class="n">extend</span><span class="p">([</span><span class="s1">&#39;glfw.3&#39;</span><span class="p">])</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">define_macros</span> <span class="o">=</span> <span class="p">[(</span><span class="s1">&#39;ONMAC&#39;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)]</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">extension</span><span class="o">.</span><span class="n">runtime_library_dirs</span> <span class="o">=</span> <span class="p">[</span><span class="n">join</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">,</span> <span class="s1">&#39;bin&#39;</span><span class="p">)]</span>

    <span class="k">def</span> <span class="nf">build</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="c1"># Prefer GCC 6 for now since GCC 7 may behave differently.</span>
        <span class="n">c_compilers</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;/usr/local/bin/gcc-6&#39;</span><span class="p">,</span> <span class="s1">&#39;/usr/local/bin/gcc-7&#39;</span><span class="p">]</span>
        <span class="n">available_c_compiler</span> <span class="o">=</span> <span class="kc">None</span>
        <span class="k">for</span> <span class="n">c_compiler</span> <span class="ow">in</span> <span class="n">c_compilers</span><span class="p">:</span>
            <span class="k">if</span> <span class="n">distutils</span><span class="o">.</span><span class="n">spawn</span><span class="o">.</span><span class="n">find_executable</span><span class="p">(</span><span class="n">c_compiler</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
                <span class="n">available_c_compiler</span> <span class="o">=</span> <span class="n">c_compiler</span>
                <span class="k">break</span>
        <span class="k">if</span> <span class="n">available_c_compiler</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
            <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span>
                <span class="s1">&#39;Could not find GCC 6 or GCC 7 executable.</span><span class="se">\n\n</span><span class="s1">&#39;</span>
                <span class="s1">&#39;HINT: On OS X, install GCC 6 with &#39;</span>
                <span class="s1">&#39;`brew install gcc --without-multilib`.&#39;</span><span class="p">)</span>
        <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="p">[</span><span class="s1">&#39;CC&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">available_c_compiler</span>

        <span class="n">so_file_path</span> <span class="o">=</span> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">build</span><span class="p">()</span>
        <span class="k">del</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="p">[</span><span class="s1">&#39;CC&#39;</span><span class="p">]</span>
        <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">manually_link_libraries</span><span class="p">(</span><span class="n">so_file_path</span><span class="p">)</span>

    <span class="k">def</span> <span class="nf">manually_link_libraries</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">raw_cext_dll_path</span><span class="p">):</span>
        <span class="n">root</span><span class="p">,</span> <span class="n">ext</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">splitext</span><span class="p">(</span><span class="n">raw_cext_dll_path</span><span class="p">)</span>
        <span class="n">final_cext_dll_path</span> <span class="o">=</span> <span class="n">root</span> <span class="o">+</span> <span class="s1">&#39;_final&#39;</span> <span class="o">+</span> <span class="n">ext</span>

        <span class="c1"># If someone else already built the final DLL, don&#39;t bother</span>
        <span class="c1"># recreating it here, even though this should still be idempotent.</span>
        <span class="k">if</span> <span class="p">(</span><span class="n">exists</span><span class="p">(</span><span class="n">final_cext_dll_path</span><span class="p">)</span> <span class="ow">and</span>
                <span class="n">getmtime</span><span class="p">(</span><span class="n">final_cext_dll_path</span><span class="p">)</span> <span class="o">&gt;=</span> <span class="n">getmtime</span><span class="p">(</span><span class="n">raw_cext_dll_path</span><span class="p">)):</span>
            <span class="k">return</span> <span class="n">final_cext_dll_path</span>

        <span class="n">tmp_final_cext_dll_path</span> <span class="o">=</span> <span class="n">final_cext_dll_path</span> <span class="o">+</span> <span class="s1">&#39;~&#39;</span>
        <span class="n">shutil</span><span class="o">.</span><span class="n">copyfile</span><span class="p">(</span><span class="n">raw_cext_dll_path</span><span class="p">,</span> <span class="n">tmp_final_cext_dll_path</span><span class="p">)</span>

        <span class="n">mj_bin_path</span> <span class="o">=</span> <span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mjpro_path</span><span class="p">,</span> <span class="s1">&#39;bin&#39;</span><span class="p">)</span>

        <span class="c1"># Fix the rpath of the generated library -- i lost the Stackoverflow</span>
        <span class="c1"># reference here</span>
        <span class="n">from_mujoco_path</span> <span class="o">=</span> <span class="s1">&#39;@executable_path/libmujoco150.dylib&#39;</span>
        <span class="n">to_mujoco_path</span> <span class="o">=</span> <span class="s1">&#39;</span><span class="si">%s</span><span class="s1">/libmujoco150.dylib&#39;</span> <span class="o">%</span> <span class="n">mj_bin_path</span>
        <span class="n">subprocess</span><span class="o">.</span><span class="n">check_call</span><span class="p">([</span><span class="s1">&#39;install_name_tool&#39;</span><span class="p">,</span>
                               <span class="s1">&#39;-change&#39;</span><span class="p">,</span>
                               <span class="n">from_mujoco_path</span><span class="p">,</span>
                               <span class="n">to_mujoco_path</span><span class="p">,</span>
                               <span class="n">tmp_final_cext_dll_path</span><span class="p">])</span>

        <span class="n">from_glfw_path</span> <span class="o">=</span> <span class="s1">&#39;libglfw.3.dylib&#39;</span>
        <span class="n">to_glfw_path</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">mj_bin_path</span><span class="p">,</span> <span class="s1">&#39;libglfw.3.dylib&#39;</span><span class="p">)</span>
        <span class="n">subprocess</span><span class="o">.</span><span class="n">check_call</span><span class="p">([</span><span class="s1">&#39;install_name_tool&#39;</span><span class="p">,</span>
                               <span class="s1">&#39;-change&#39;</span><span class="p">,</span>
                               <span class="n">from_glfw_path</span><span class="p">,</span>
                               <span class="n">to_glfw_path</span><span class="p">,</span>
                               <span class="n">tmp_final_cext_dll_path</span><span class="p">])</span>

        <span class="n">os</span><span class="o">.</span><span class="n">rename</span><span class="p">(</span><span class="n">tmp_final_cext_dll_path</span><span class="p">,</span> <span class="n">final_cext_dll_path</span><span class="p">)</span>
        <span class="k">return</span> <span class="n">final_cext_dll_path</span>


<span class="k">class</span> <span class="nc">MujocoException</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span>
    <span class="k">pass</span>


<span class="k">def</span> <span class="nf">user_warning_raise_exception</span><span class="p">(</span><span class="n">warn_bytes</span><span class="p">):</span>
    <span class="sd">&#39;&#39;&#39;</span>
<span class="sd">    User-defined warning callback, which is called by mujoco on warnings.</span>
<span class="sd">    Here we have two primary jobs:</span>
<span class="sd">        - Detect known warnings and suggest fixes (with code)</span>
<span class="sd">        - Decide whether to raise an Exception and raise if needed</span>
<span class="sd">    More cases should be added as we find new failures.</span>
<span class="sd">    &#39;&#39;&#39;</span>
    <span class="c1"># TODO: look through test output to see MuJoCo warnings to catch</span>
    <span class="c1"># and recommend. Also fix those tests</span>
    <span class="n">warn</span> <span class="o">=</span> <span class="n">warn_bytes</span><span class="o">.</span><span class="n">decode</span><span class="p">()</span>  <span class="c1"># Convert bytes to string</span>
    <span class="k">if</span> <span class="s1">&#39;Pre-allocated constraint buffer is full&#39;</span> <span class="ow">in</span> <span class="n">warn</span><span class="p">:</span>
        <span class="k">raise</span> <span class="n">MujocoException</span><span class="p">(</span><span class="n">warn</span> <span class="o">+</span> <span class="s1">&#39;Increase njmax in mujoco XML&#39;</span><span class="p">)</span>
    <span class="k">if</span> <span class="s1">&#39;Pre-allocated contact buffer is full&#39;</span> <span class="ow">in</span> <span class="n">warn</span><span class="p">:</span>
        <span class="k">raise</span> <span class="n">MujocoException</span><span class="p">(</span><span class="n">warn</span> <span class="o">+</span> <span class="s1">&#39;Increase njconmax in mujoco XML&#39;</span><span class="p">)</span>
    <span class="k">raise</span> <span class="n">MujocoException</span><span class="p">(</span><span class="s1">&#39;Got MuJoCo Warning: </span><span class="si">{}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">warn</span><span class="p">))</span>


<span class="k">def</span> <span class="nf">user_warning_ignore_exception</span><span class="p">(</span><span class="n">warn_bytes</span><span class="p">):</span>
    <span class="k">pass</span>


<div class="viewcode-block" id="ignore_mujoco_warnings"><a class="viewcode-back" href="../../reference.html#mujoco_py.ignore_mujoco_warnings">[docs]</a><span class="k">class</span> <span class="nc">ignore_mujoco_warnings</span><span class="p">:</span>
    <span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    Class to turn off mujoco warning exceptions within a scope. Useful for</span>
<span class="sd">    large, vectorized rollouts.</span>
<span class="sd">    &quot;&quot;&quot;</span>

    <span class="k">def</span> <span class="nf">__enter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">prev_user_warning</span> <span class="o">=</span> <span class="n">cymj</span><span class="o">.</span><span class="n">get_warning_callback</span><span class="p">()</span>
        <span class="n">cymj</span><span class="o">.</span><span class="n">set_warning_callback</span><span class="p">(</span><span class="n">user_warning_ignore_exception</span><span class="p">)</span>
        <span class="k">return</span> <span class="bp">self</span>

    <span class="k">def</span> <span class="nf">__exit__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">type</span><span class="p">,</span> <span class="n">value</span><span class="p">,</span> <span class="n">traceback</span><span class="p">):</span>
        <span class="n">cymj</span><span class="o">.</span><span class="n">set_warning_callback</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">prev_user_warning</span><span class="p">)</span></div>


<span class="n">mjpro_path</span><span class="p">,</span> <span class="n">key_path</span> <span class="o">=</span> <span class="n">discover_mujoco</span><span class="p">()</span>
<span class="n">cymj</span> <span class="o">=</span> <span class="n">load_cython_ext</span><span class="p">(</span><span class="n">mjpro_path</span><span class="p">)</span>


<span class="c1"># Trick to expose all mj* functions from mujoco in mujoco_py.*</span>
<span class="k">class</span> <span class="nc">dict2</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
    <span class="k">pass</span>


<span class="n">functions</span> <span class="o">=</span> <span class="n">dict2</span><span class="p">()</span>
<span class="k">for</span> <span class="n">func_name</span> <span class="ow">in</span> <span class="nb">dir</span><span class="p">(</span><span class="n">cymj</span><span class="p">):</span>
    <span class="k">if</span> <span class="n">func_name</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s2">&quot;_mj&quot;</span><span class="p">):</span>
        <span class="nb">setattr</span><span class="p">(</span><span class="n">functions</span><span class="p">,</span> <span class="n">func_name</span><span class="p">[</span><span class="mi">1</span><span class="p">:],</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">cymj</span><span class="p">,</span> <span class="n">func_name</span><span class="p">))</span>

<span class="n">functions</span><span class="o">.</span><span class="n">mj_activate</span><span class="p">(</span><span class="n">key_path</span><span class="p">)</span>

<span class="c1"># Set user-defined callbacks that raise assertion with message</span>
<span class="n">cymj</span><span class="o">.</span><span class="n">set_warning_callback</span><span class="p">(</span><span class="n">user_warning_raise_exception</span><span class="p">)</span>
</pre></div>

           </div>
           <div class="articleComments">
            
           </div>
          </div>
          <footer>
  

  <hr/>

  <div role="contentinfo">
    <p>
        &copy; Copyright 2017, OpenAI.

    </p>
  </div>
  Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. 

</footer>

        </div>
      </div>

    </section>

  </div>
  


  

    <script type="text/javascript">
        var DOCUMENTATION_OPTIONS = {
            URL_ROOT:'../../',
            VERSION:'1.50.1.0',
            COLLAPSE_INDEX:false,
            FILE_SUFFIX:'.html',
            HAS_SOURCE:  true,
            SOURCELINK_SUFFIX: '.txt'
        };
    </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/js/theme.js"></script>
  

  
  
  <script type="text/javascript">
      jQuery(function () {
          SphinxRtdTheme.StickyNav.enable();
      });
  </script>
   

</body>
</html>