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  99. <li><a class="reference internal" href="#cross-platform">Cross Platform</a></li>

  100. <li><a class="reference internal" href="#java-platform">Java Platform</a></li>

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  197.   <section id="module-platform">

  198. <span id="platform-access-to-underlying-platform-s-identifying-data"></span><h1><a class="reference internal" href="#module-platform" title="platform: Retrieves as much platform identifying data as possible."><code class="xref py py-mod docutils literal notranslate"><span class="pre">platform</span></code></a> —  Access to underlying platform’s identifying data<a class="headerlink" href="#module-platform" title="Link to this heading">¶</a></h1>

  199. <p><strong>Source code:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/3.12/Lib/platform.py">Lib/platform.py</a></p>

  200. <hr class="docutils" />

  201. <div class="admonition note">

  202. <p class="admonition-title">Note</p>

  203. <p>Specific platforms listed alphabetically, with Linux included in the Unix

  204. section.</p>

  205. </div>

  206. <section id="cross-platform">

  207. <h2>Cross Platform<a class="headerlink" href="#cross-platform" title="Link to this heading">¶</a></h2>

  208. <dl class="py function">

  209. <dt class="sig sig-object py" id="platform.architecture">

  210. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">architecture</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">executable</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">sys.executable</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bits</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">linkage</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#platform.architecture" title="Link to this definition">¶</a></dt>

  211. <dd><p>Queries the given executable (defaults to the Python interpreter binary) for

  212. various architecture information.</p>

  213. <p>Returns a tuple <code class="docutils literal notranslate"><span class="pre">(bits,</span> <span class="pre">linkage)</span></code> which contain information about the bit

  214. architecture and the linkage format used for the executable. Both values are

  215. returned as strings.</p>

  216. <p>Values that cannot be determined are returned as given by the parameter presets.

  217. If bits is given as <code class="docutils literal notranslate"><span class="pre">''</span></code>, the <code class="docutils literal notranslate"><span class="pre">sizeof(pointer)</span></code> (or

  218. <code class="docutils literal notranslate"><span class="pre">sizeof(long)</span></code> on Python version &lt; 1.5.2) is used as indicator for the

  219. supported pointer size.</p>

  220. <p>The function relies on the system’s <code class="file docutils literal notranslate"><span class="pre">file</span></code> command to do the actual work.

  221. This is available on most if not all Unix  platforms and some non-Unix platforms

  222. and then only if the executable points to the Python interpreter.  Reasonable

  223. defaults are used when the above needs are not met.</p>

  224. <div class="admonition note">

  225. <p class="admonition-title">Note</p>

  226. <p>On macOS (and perhaps other platforms), executable files may be

  227. universal files containing multiple architectures.</p>

  228. <p>To get at the “64-bitness” of the current interpreter, it is more

  229. reliable to query the <a class="reference internal" href="sys.html#sys.maxsize" title="sys.maxsize"><code class="xref py py-data docutils literal notranslate"><span class="pre">sys.maxsize</span></code></a> attribute:</p>

  230. <div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="n">is_64bits</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">maxsize</span> <span class="o">&gt;</span> <span class="mi">2</span><span class="o">**</span><span class="mi">32</span>

  231. </pre></div>

  232. </div>

  233. </div>

  234. </dd></dl>

  235. 

  236. <dl class="py function">

  237. <dt class="sig sig-object py" id="platform.machine">

  238. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">machine</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.machine" title="Link to this definition">¶</a></dt>

  239. <dd><p>Returns the machine type, e.g. <code class="docutils literal notranslate"><span class="pre">'AMD64'</span></code>. An empty string is returned if the

  240. value cannot be determined.</p>

  241. </dd></dl>

  242. 

  243. <dl class="py function">

  244. <dt class="sig sig-object py" id="platform.node">

  245. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">node</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.node" title="Link to this definition">¶</a></dt>

  246. <dd><p>Returns the computer’s network name (may not be fully qualified!). An empty

  247. string is returned if the value cannot be determined.</p>

  248. </dd></dl>

  249. 

  250. <dl class="py function">

  251. <dt class="sig sig-object py" id="platform.platform">

  252. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">platform</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">aliased</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">terse</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#platform.platform" title="Link to this definition">¶</a></dt>

  253. <dd><p>Returns a single string identifying the underlying platform with as much useful

  254. information as possible.</p>

  255. <p>The output is intended to be <em>human readable</em> rather than machine parseable. It

  256. may look different on different platforms and this is intended.</p>

  257. <p>If <em>aliased</em> is true, the function will use aliases for various platforms that

  258. report system names which differ from their common names, for example SunOS will

  259. be reported as Solaris.  The <a class="reference internal" href="#platform.system_alias" title="platform.system_alias"><code class="xref py py-func docutils literal notranslate"><span class="pre">system_alias()</span></code></a> function is used to implement

  260. this.</p>

  261. <p>Setting <em>terse</em> to true causes the function to return only the absolute minimum

  262. information needed to identify the platform.</p>

  263. <div class="versionchanged">

  264. <p><span class="versionmodified changed">Changed in version 3.8: </span>On macOS, the function now uses <a class="reference internal" href="#platform.mac_ver" title="platform.mac_ver"><code class="xref py py-func docutils literal notranslate"><span class="pre">mac_ver()</span></code></a>, if it returns a

  265. non-empty release string, to get the macOS version rather than the darwin

  266. version.</p>

  267. </div>

  268. </dd></dl>

  269. 

  270. <dl class="py function">

  271. <dt class="sig sig-object py" id="platform.processor">

  272. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">processor</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.processor" title="Link to this definition">¶</a></dt>

  273. <dd><p>Returns the (real) processor name, e.g. <code class="docutils literal notranslate"><span class="pre">'amdk6'</span></code>.</p>

  274. <p>An empty string is returned if the value cannot be determined. Note that many

  275. platforms do not provide this information or simply return the same value as for

  276. <a class="reference internal" href="#platform.machine" title="platform.machine"><code class="xref py py-func docutils literal notranslate"><span class="pre">machine()</span></code></a>.  NetBSD does this.</p>

  277. </dd></dl>

  278. 

  279. <dl class="py function">

  280. <dt class="sig sig-object py" id="platform.python_build">

  281. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">python_build</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.python_build" title="Link to this definition">¶</a></dt>

  282. <dd><p>Returns a tuple <code class="docutils literal notranslate"><span class="pre">(buildno,</span> <span class="pre">builddate)</span></code> stating the Python build number and

  283. date as strings.</p>

  284. </dd></dl>

  285. 

  286. <dl class="py function">

  287. <dt class="sig sig-object py" id="platform.python_compiler">

  288. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">python_compiler</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.python_compiler" title="Link to this definition">¶</a></dt>

  289. <dd><p>Returns a string identifying the compiler used for compiling Python.</p>

  290. </dd></dl>

  291. 

  292. <dl class="py function">

  293. <dt class="sig sig-object py" id="platform.python_branch">

  294. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">python_branch</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.python_branch" title="Link to this definition">¶</a></dt>

  295. <dd><p>Returns a string identifying the Python implementation SCM branch.</p>

  296. </dd></dl>

  297. 

  298. <dl class="py function">

  299. <dt class="sig sig-object py" id="platform.python_implementation">

  300. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">python_implementation</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.python_implementation" title="Link to this definition">¶</a></dt>

  301. <dd><p>Returns a string identifying the Python implementation. Possible return values

  302. are: ‘CPython’, ‘IronPython’, ‘Jython’, ‘PyPy’.</p>

  303. </dd></dl>

  304. 

  305. <dl class="py function">

  306. <dt class="sig sig-object py" id="platform.python_revision">

  307. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">python_revision</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.python_revision" title="Link to this definition">¶</a></dt>

  308. <dd><p>Returns a string identifying the Python implementation SCM revision.</p>

  309. </dd></dl>

  310. 

  311. <dl class="py function">

  312. <dt class="sig sig-object py" id="platform.python_version">

  313. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">python_version</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.python_version" title="Link to this definition">¶</a></dt>

  314. <dd><p>Returns the Python version as string <code class="docutils literal notranslate"><span class="pre">'major.minor.patchlevel'</span></code>.</p>

  315. <p>Note that unlike the Python <code class="docutils literal notranslate"><span class="pre">sys.version</span></code>, the returned value will always

  316. include the patchlevel (it defaults to 0).</p>

  317. </dd></dl>

  318. 

  319. <dl class="py function">

  320. <dt class="sig sig-object py" id="platform.python_version_tuple">

  321. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">python_version_tuple</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.python_version_tuple" title="Link to this definition">¶</a></dt>

  322. <dd><p>Returns the Python version as tuple <code class="docutils literal notranslate"><span class="pre">(major,</span> <span class="pre">minor,</span> <span class="pre">patchlevel)</span></code> of strings.</p>

  323. <p>Note that unlike the Python <code class="docutils literal notranslate"><span class="pre">sys.version</span></code>, the returned value will always

  324. include the patchlevel (it defaults to <code class="docutils literal notranslate"><span class="pre">'0'</span></code>).</p>

  325. </dd></dl>

  326. 

  327. <dl class="py function">

  328. <dt class="sig sig-object py" id="platform.release">

  329. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">release</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.release" title="Link to this definition">¶</a></dt>

  330. <dd><p>Returns the system’s release, e.g. <code class="docutils literal notranslate"><span class="pre">'2.2.0'</span></code> or <code class="docutils literal notranslate"><span class="pre">'NT'</span></code>. An empty string is

  331. returned if the value cannot be determined.</p>

  332. </dd></dl>

  333. 

  334. <dl class="py function">

  335. <dt class="sig sig-object py" id="platform.system">

  336. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">system</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.system" title="Link to this definition">¶</a></dt>

  337. <dd><p>Returns the system/OS name, such as <code class="docutils literal notranslate"><span class="pre">'Linux'</span></code>, <code class="docutils literal notranslate"><span class="pre">'Darwin'</span></code>, <code class="docutils literal notranslate"><span class="pre">'Java'</span></code>,

  338. <code class="docutils literal notranslate"><span class="pre">'Windows'</span></code>. An empty string is returned if the value cannot be determined.</p>

  339. </dd></dl>

  340. 

  341. <dl class="py function">

  342. <dt class="sig sig-object py" id="platform.system_alias">

  343. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">system_alias</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">system</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">release</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">version</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#platform.system_alias" title="Link to this definition">¶</a></dt>

  344. <dd><p>Returns <code class="docutils literal notranslate"><span class="pre">(system,</span> <span class="pre">release,</span> <span class="pre">version)</span></code> aliased to common marketing names used

  345. for some systems.  It also does some reordering of the information in some cases

  346. where it would otherwise cause confusion.</p>

  347. </dd></dl>

  348. 

  349. <dl class="py function">

  350. <dt class="sig sig-object py" id="platform.version">

  351. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">version</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.version" title="Link to this definition">¶</a></dt>

  352. <dd><p>Returns the system’s release version, e.g. <code class="docutils literal notranslate"><span class="pre">'#3</span> <span class="pre">on</span> <span class="pre">degas'</span></code>. An empty string is

  353. returned if the value cannot be determined.</p>

  354. </dd></dl>

  355. 

  356. <dl class="py function">

  357. <dt class="sig sig-object py" id="platform.uname">

  358. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">uname</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.uname" title="Link to this definition">¶</a></dt>

  359. <dd><p>Fairly portable uname interface. Returns a <a class="reference internal" href="collections.html#collections.namedtuple" title="collections.namedtuple"><code class="xref py py-func docutils literal notranslate"><span class="pre">namedtuple()</span></code></a>

  360. containing six attributes: <a class="reference internal" href="#platform.system" title="platform.system"><code class="xref py py-attr docutils literal notranslate"><span class="pre">system</span></code></a>, <a class="reference internal" href="#platform.node" title="platform.node"><code class="xref py py-attr docutils literal notranslate"><span class="pre">node</span></code></a>, <a class="reference internal" href="#platform.release" title="platform.release"><code class="xref py py-attr docutils literal notranslate"><span class="pre">release</span></code></a>,

  361. <a class="reference internal" href="#platform.version" title="platform.version"><code class="xref py py-attr docutils literal notranslate"><span class="pre">version</span></code></a>, <a class="reference internal" href="#platform.machine" title="platform.machine"><code class="xref py py-attr docutils literal notranslate"><span class="pre">machine</span></code></a>, and <a class="reference internal" href="#platform.processor" title="platform.processor"><code class="xref py py-attr docutils literal notranslate"><span class="pre">processor</span></code></a>.</p>

  362. <p><a class="reference internal" href="#platform.processor" title="platform.processor"><code class="xref py py-attr docutils literal notranslate"><span class="pre">processor</span></code></a> is resolved late, on demand.</p>

  363. <p>Note: the first two attribute names differ from the names presented by

  364. <a class="reference internal" href="os.html#os.uname" title="os.uname"><code class="xref py py-func docutils literal notranslate"><span class="pre">os.uname()</span></code></a>, where they are named <code class="xref py py-attr docutils literal notranslate"><span class="pre">sysname</span></code> and

  365. <code class="xref py py-attr docutils literal notranslate"><span class="pre">nodename</span></code>.</p>

  366. <p>Entries which cannot be determined are set to <code class="docutils literal notranslate"><span class="pre">''</span></code>.</p>

  367. <div class="versionchanged">

  368. <p><span class="versionmodified changed">Changed in version 3.3: </span>Result changed from a tuple to a <a class="reference internal" href="collections.html#collections.namedtuple" title="collections.namedtuple"><code class="xref py py-func docutils literal notranslate"><span class="pre">namedtuple()</span></code></a>.</p>

  369. </div>

  370. <div class="versionchanged">

  371. <p><span class="versionmodified changed">Changed in version 3.9: </span><a class="reference internal" href="#platform.processor" title="platform.processor"><code class="xref py py-attr docutils literal notranslate"><span class="pre">processor</span></code></a> is resolved late instead of immediately.</p>

  372. </div>

  373. </dd></dl>

  374. 

  375. </section>

  376. <section id="java-platform">

  377. <h2>Java Platform<a class="headerlink" href="#java-platform" title="Link to this heading">¶</a></h2>

  378. <dl class="py function">

  379. <dt class="sig sig-object py" id="platform.java_ver">

  380. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">java_ver</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">release</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">vendor</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">vminfo</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">('',</span> <span class="pre">'',</span> <span class="pre">'')</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">osinfo</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">('',</span> <span class="pre">'',</span> <span class="pre">'')</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#platform.java_ver" title="Link to this definition">¶</a></dt>

  381. <dd><p>Version interface for Jython.</p>

  382. <p>Returns a tuple <code class="docutils literal notranslate"><span class="pre">(release,</span> <span class="pre">vendor,</span> <span class="pre">vminfo,</span> <span class="pre">osinfo)</span></code> with <em>vminfo</em> being a

  383. tuple <code class="docutils literal notranslate"><span class="pre">(vm_name,</span> <span class="pre">vm_release,</span> <span class="pre">vm_vendor)</span></code> and <em>osinfo</em> being a tuple

  384. <code class="docutils literal notranslate"><span class="pre">(os_name,</span> <span class="pre">os_version,</span> <span class="pre">os_arch)</span></code>. Values which cannot be determined are set to

  385. the defaults given as parameters (which all default to <code class="docutils literal notranslate"><span class="pre">''</span></code>).</p>

  386. </dd></dl>

  387. 

  388. </section>

  389. <section id="windows-platform">

  390. <h2>Windows Platform<a class="headerlink" href="#windows-platform" title="Link to this heading">¶</a></h2>

  391. <dl class="py function">

  392. <dt class="sig sig-object py" id="platform.win32_ver">

  393. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">win32_ver</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">release</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">version</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">csd</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">ptype</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#platform.win32_ver" title="Link to this definition">¶</a></dt>

  394. <dd><p>Get additional version information from the Windows Registry and return a tuple

  395. <code class="docutils literal notranslate"><span class="pre">(release,</span> <span class="pre">version,</span> <span class="pre">csd,</span> <span class="pre">ptype)</span></code> referring to OS release, version number,

  396. CSD level (service pack) and OS type (multi/single processor). Values which

  397. cannot be determined are set to the defaults given as parameters (which all

  398. default to an empty string).</p>

  399. <p>As a hint: <em>ptype</em> is <code class="docutils literal notranslate"><span class="pre">'Uniprocessor</span> <span class="pre">Free'</span></code> on single processor NT machines

  400. and <code class="docutils literal notranslate"><span class="pre">'Multiprocessor</span> <span class="pre">Free'</span></code> on multi processor machines. The <em>‘Free’</em> refers

  401. to the OS version being free of debugging code. It could also state <em>‘Checked’</em>

  402. which means the OS version uses debugging code, i.e. code that checks arguments,

  403. ranges, etc.</p>

  404. </dd></dl>

  405. 

  406. <dl class="py function">

  407. <dt class="sig sig-object py" id="platform.win32_edition">

  408. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">win32_edition</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.win32_edition" title="Link to this definition">¶</a></dt>

  409. <dd><p>Returns a string representing the current Windows edition, or <code class="docutils literal notranslate"><span class="pre">None</span></code> if the

  410. value cannot be determined.  Possible values include but are not limited to

  411. <code class="docutils literal notranslate"><span class="pre">'Enterprise'</span></code>, <code class="docutils literal notranslate"><span class="pre">'IoTUAP'</span></code>, <code class="docutils literal notranslate"><span class="pre">'ServerStandard'</span></code>, and <code class="docutils literal notranslate"><span class="pre">'nanoserver'</span></code>.</p>

  412. <div class="versionadded">

  413. <p><span class="versionmodified added">New in version 3.8.</span></p>

  414. </div>

  415. </dd></dl>

  416. 

  417. <dl class="py function">

  418. <dt class="sig sig-object py" id="platform.win32_is_iot">

  419. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">win32_is_iot</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.win32_is_iot" title="Link to this definition">¶</a></dt>

  420. <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the Windows edition returned by <a class="reference internal" href="#platform.win32_edition" title="platform.win32_edition"><code class="xref py py-func docutils literal notranslate"><span class="pre">win32_edition()</span></code></a>

  421. is recognized as an IoT edition.</p>

  422. <div class="versionadded">

  423. <p><span class="versionmodified added">New in version 3.8.</span></p>

  424. </div>

  425. </dd></dl>

  426. 

  427. </section>

  428. <section id="macos-platform">

  429. <h2>macOS Platform<a class="headerlink" href="#macos-platform" title="Link to this heading">¶</a></h2>

  430. <dl class="py function">

  431. <dt class="sig sig-object py" id="platform.mac_ver">

  432. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">mac_ver</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">release</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">versioninfo</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">('',</span> <span class="pre">'',</span> <span class="pre">'')</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">machine</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#platform.mac_ver" title="Link to this definition">¶</a></dt>

  433. <dd><p>Get macOS version information and return it as tuple <code class="docutils literal notranslate"><span class="pre">(release,</span> <span class="pre">versioninfo,</span>

  434. <span class="pre">machine)</span></code> with <em>versioninfo</em> being a tuple <code class="docutils literal notranslate"><span class="pre">(version,</span> <span class="pre">dev_stage,</span>

  435. <span class="pre">non_release_version)</span></code>.</p>

  436. <p>Entries which cannot be determined are set to <code class="docutils literal notranslate"><span class="pre">''</span></code>.  All tuple entries are

  437. strings.</p>

  438. </dd></dl>

  439. 

  440. </section>

  441. <section id="unix-platforms">

  442. <h2>Unix Platforms<a class="headerlink" href="#unix-platforms" title="Link to this heading">¶</a></h2>

  443. <dl class="py function">

  444. <dt class="sig sig-object py" id="platform.libc_ver">

  445. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">libc_ver</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">executable</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">sys.executable</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">lib</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">version</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">chunksize</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">16384</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#platform.libc_ver" title="Link to this definition">¶</a></dt>

  446. <dd><p>Tries to determine the libc version against which the file executable (defaults

  447. to the Python interpreter) is linked.  Returns a tuple of strings <code class="docutils literal notranslate"><span class="pre">(lib,</span>

  448. <span class="pre">version)</span></code> which default to the given parameters in case the lookup fails.</p>

  449. <p>Note that this function has intimate knowledge of how different libc versions

  450. add symbols to the executable is probably only usable for executables compiled

  451. using <strong class="program">gcc</strong>.</p>

  452. <p>The file is read and scanned in chunks of <em>chunksize</em> bytes.</p>

  453. </dd></dl>

  454. 

  455. </section>

  456. <section id="linux-platforms">

  457. <h2>Linux Platforms<a class="headerlink" href="#linux-platforms" title="Link to this heading">¶</a></h2>

  458. <dl class="py function">

  459. <dt class="sig sig-object py" id="platform.freedesktop_os_release">

  460. <span class="sig-prename descclassname"><span class="pre">platform.</span></span><span class="sig-name descname"><span class="pre">freedesktop_os_release</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#platform.freedesktop_os_release" title="Link to this definition">¶</a></dt>

  461. <dd><p>Get operating system identification from <code class="docutils literal notranslate"><span class="pre">os-release</span></code> file and return

  462. it as a dict. The <code class="docutils literal notranslate"><span class="pre">os-release</span></code> file is a <a class="reference external" href="https://www.freedesktop.org/software/systemd/man/os-release.html">freedesktop.org standard</a> and

  463. is available in most Linux distributions. A noticeable exception is

  464. Android and Android-based distributions.</p>

  465. <p>Raises <a class="reference internal" href="exceptions.html#OSError" title="OSError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OSError</span></code></a> or subclass when neither <code class="docutils literal notranslate"><span class="pre">/etc/os-release</span></code> nor

  466. <code class="docutils literal notranslate"><span class="pre">/usr/lib/os-release</span></code> can be read.</p>

  467. <p>On success, the function returns a dictionary where keys and values are

  468. strings. Values have their special characters like <code class="docutils literal notranslate"><span class="pre">&quot;</span></code> and <code class="docutils literal notranslate"><span class="pre">$</span></code>

  469. unquoted. The fields <code class="docutils literal notranslate"><span class="pre">NAME</span></code>, <code class="docutils literal notranslate"><span class="pre">ID</span></code>, and <code class="docutils literal notranslate"><span class="pre">PRETTY_NAME</span></code> are always

  470. defined according to the standard. All other fields are optional. Vendors

  471. may include additional fields.</p>

  472. <p>Note that fields like <code class="docutils literal notranslate"><span class="pre">NAME</span></code>, <code class="docutils literal notranslate"><span class="pre">VERSION</span></code>, and <code class="docutils literal notranslate"><span class="pre">VARIANT</span></code> are strings

  473. suitable for presentation to users. Programs should use fields like

  474. <code class="docutils literal notranslate"><span class="pre">ID</span></code>, <code class="docutils literal notranslate"><span class="pre">ID_LIKE</span></code>, <code class="docutils literal notranslate"><span class="pre">VERSION_ID</span></code>, or <code class="docutils literal notranslate"><span class="pre">VARIANT_ID</span></code> to identify

  475. Linux distributions.</p>

  476. <p>Example:</p>

  477. <div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="k">def</span> <span class="nf">get_like_distro</span><span class="p">():</span>

  478.     <span class="n">info</span> <span class="o">=</span> <span class="n">platform</span><span class="o">.</span><span class="n">freedesktop_os_release</span><span class="p">()</span>

  479.     <span class="n">ids</span> <span class="o">=</span> <span class="p">[</span><span class="n">info</span><span class="p">[</span><span class="s2">&quot;ID&quot;</span><span class="p">]]</span>

  480.     <span class="k">if</span> <span class="s2">&quot;ID_LIKE&quot;</span> <span class="ow">in</span> <span class="n">info</span><span class="p">:</span>

  481.         <span class="c1"># ids are space separated and ordered by precedence</span>

  482.         <span class="n">ids</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">info</span><span class="p">[</span><span class="s2">&quot;ID_LIKE&quot;</span><span class="p">]</span><span class="o">.</span><span class="n">split</span><span class="p">())</span>

  483.     <span class="k">return</span> <span class="n">ids</span>

  484. </pre></div>

  485. </div>

  486. <div class="versionadded">

  487. <p><span class="versionmodified added">New in version 3.10.</span></p>

  488. </div>

  489. </dd></dl>

  490. 

  491. </section>

  492. </section>

  493. 

  494. 

  495.             <div class="clearer"></div>

  496.           </div>

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  498.       </div>

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  500.         <div class="sphinxsidebarwrapper">

  501.   <div>

  502.     <h3><a href="../contents.html">Table of Contents</a></h3>

  503.     <ul>

  504. <li><a class="reference internal" href="#"><code class="xref py py-mod docutils literal notranslate"><span class="pre">platform</span></code> —  Access to underlying platform’s identifying data</a><ul>

  505. <li><a class="reference internal" href="#cross-platform">Cross Platform</a></li>

  506. <li><a class="reference internal" href="#java-platform">Java Platform</a></li>

  507. <li><a class="reference internal" href="#windows-platform">Windows Platform</a></li>

  508. <li><a class="reference internal" href="#macos-platform">macOS Platform</a></li>

  509. <li><a class="reference internal" href="#unix-platforms">Unix Platforms</a></li>

  510. <li><a class="reference internal" href="#linux-platforms">Linux Platforms</a></li>

  511. </ul>

  512. </li>

  513. </ul>

  514. 

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  524.                           title="next chapter"><code class="xref py py-mod docutils literal notranslate"><span class="pre">errno</span></code> — Standard errno system symbols</a></p>

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