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python-cheatsheet
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Paths, fixed two links

pull/75/merge
Jure Šorn 4 days ago
parent
81e02255db
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6974f6adc7
4 changed files with 13 additions and 12 deletions
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  1. 6
      README.md
  2. 12
      index.html
  3. 3
      parse.js
  4. 4
      web/script_2.js

6
README.md
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@ -14,7 +14,7 @@ Contents
**   ** **4. System:** **        ** **[`Exit`](#exit)**__,__ **[`Print`](#print)**__,__ **[`Input`](#input)**__,__ **[`Command_Line_Arguments`](#command-line-arguments)**__,__ **[`Open`](#open)**__,__ **[`Path`](#paths)**__,__ **[`OS_Commands`](#os-commands)**__.__
**   ** **5. Data:** **             ** **[`JSON`](#json)**__,__ **[`Pickle`](#pickle)**__,__ **[`CSV`](#csv)**__,__ **[`SQLite`](#sqlite)**__,__ **[`Bytes`](#bytes)**__,__ **[`Struct`](#struct)**__,__ **[`Array`](#array)**__,__ **[`Memory_View`](#memory-view)**__,__ **[`Deque`](#deque)**__.__
**   ** **6. Advanced:** **   ** **[`Threading`](#threading)**__,__ **[`Operator`](#operator)**__,__ **[`Match_Stmt`](#match-statement)**__,__ **[`Logging`](#logging)**__,__ **[`Introspection`](#introspection)**__,__ **[`Coroutines`](#coroutines)**__.__
**   ** **7. Libraries:** **      ** **[`Progress_Bar`](#progress-bar)**__,__ **[`Plot`](#plot)**__,__ **[`Table`](#table)**__,__ **[`Console_App`](#console-app)**__,__ **[`GUI`](#gui-app)**__,__ **[`Scraping`](#scraping)**__,__ **[`Web`](#web)**__,__ **[`Profile`](#profiling)**__.__
**   ** **7. Libraries:** **      ** **[`Progress_Bar`](#progress-bar)**__,__ **[`Plot`](#plot)**__,__ **[`Table`](#table)**__,__ **[`Console_App`](#console-app)**__,__ **[`GUI`](#gui-app)**__,__ **[`Scraping`](#scraping)**__,__ **[`Web`](#web-app)**__,__ **[`Profile`](#profiling)**__.__
**   ** **8. Multimedia:** **  ** **[`NumPy`](#numpy)**__,__ **[`Image`](#image)**__,__ **[`Animation`](#animation)**__,__ **[`Audio`](#audio)**__,__ **[`Synthesizer`](#synthesizer)**__,__ **[`Pygame`](#pygame)**__,__ **[`Pandas`](#pandas)**__,__ **[`Plotly`](#plotly)**__.__
@ -1583,7 +1583,7 @@ Open
* **`'w+'` - Read and write. Deletes existing contents.**
* **`'r+'` - Read and write from the start.**
* **`'a+'` - Read and write from the end.**
* **`'b'` - Binary mode (`'rb'`, `'wb'`, `'xb'`, …)**
* **`'b'` - Binary mode (`'rb'`, `'wb'`, `'xb'`, …).**
### Exceptions
* **`'FileNotFoundError'` can be raised when reading with `'r'` or `'r+'`.**
@ -1661,7 +1661,7 @@ from pathlib import Path
```python
<stat> = os.stat(<path>) # Or: <DirEntry/Path>.stat()
<num> = <stat>.st_mtime/st_size/… # Modification time, size in bytes, ...
<num> = <stat>.st_mtime/st_size/… # Modification time, size in bytes, etc.
```
### DirEntry

12
index.html
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@ -55,7 +55,7 @@
<body>
<header>
<aside>November 18, 2024</aside>
<aside>November 19, 2024</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</header>
@ -87,7 +87,7 @@
<strong><span class="hljs-string"><span class="hljs-string">'4. System'</span></span></strong>: [<a href="#exit">Exit</a>, <a href="#print">Print</a>, <a href="#input">Input</a>, <a href="#commandlinearguments">Command_Line_Arguments</a>, <a href="#open">Open</a>, <a href="#paths">Path</a>, <a href="#oscommands">OS_Commands</a>],
<strong><span class="hljs-string"><span class="hljs-string">'5. Data'</span></span></strong>: [<a href="#json">JSON</a>, <a href="#pickle">Pickle</a>, <a href="#csv">CSV</a>, <a href="#sqlite">SQLite</a>, <a href="#bytes">Bytes</a>, <a href="#struct">Struct</a>, <a href="#array">Array</a>, <a href="#memoryview">Memory_View</a>, <a href="#deque">Deque</a>],
<strong><span class="hljs-string"><span class="hljs-string">'6. Advanced'</span></span></strong>: [<a href="#threading">Threading</a>, <a href="#operator">Operator</a>, <a href="#matchstatement">Match_Stmt</a>, <a href="#logging">Logging</a>, <a href="#introspection">Introspection</a>, <a href="#coroutines">Coroutines</a>],
<strong><span class="hljs-string"><span class="hljs-string">'7. Libraries'</span></span></strong>: [<a href="#progressbar">Progress_Bar</a>, <a href="#plot">Plot</a>, <a href="#table">Table</a>, <a href="#consoleapp">Console_App</a>, <a href="#guiapp">GUI</a>, <a href="#scraping">Scraping</a>, <a href="#web">Web</a>, <a href="#profiling">Profile</a>],
<strong><span class="hljs-string"><span class="hljs-string">'7. Libraries'</span></span></strong>: [<a href="#progressbar">Progress_Bar</a>, <a href="#plot">Plot</a>, <a href="#table">Table</a>, <a href="#consoleapp">Console_App</a>, <a href="#guiapp">GUI</a>, <a href="#scraping">Scraping</a>, <a href="#webapp">Web</a>, <a href="#profiling">Profile</a>],
<strong><span class="hljs-string"><span class="hljs-string">'8. Multimedia'</span></span></strong>: [<a href="#numpy">NumPy</a>, <a href="#image">Image</a>, <a href="#animation">Animation</a>, <a href="#audio">Audio</a>, <a href="#synthesizer">Synthesizer</a>, <a href="#pygame">Pygame</a>, <a href="#pandas">Pandas</a>, <a href="#plotly">Plotly</a>]
}
</code></pre></div>
@ -1340,7 +1340,7 @@ args = p.parse_args() <span class="h
<li><strong><code class="python hljs"><span class="hljs-string">'w+'</span></code> - Read and write. Deletes existing contents.</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'r+'</span></code> - Read and write from the start.</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'a+'</span></code> - Read and write from the end.</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'b'</span></code> - Binary mode (<code class="python hljs"><span class="hljs-string">'rb'</span></code>, <code class="python hljs"><span class="hljs-string">'wb'</span></code>, <code class="python hljs"><span class="hljs-string">'xb'</span></code>, …)</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'b'</span></code> - Binary mode (<code class="python hljs"><span class="hljs-string">'rb'</span></code>, <code class="python hljs"><span class="hljs-string">'wb'</span></code>, <code class="python hljs"><span class="hljs-string">'xb'</span></code>, …).</strong></li>
</ul><div><h3 id="exceptions-1">Exceptions</h3><ul>
<li><strong><code class="python hljs"><span class="hljs-string">'FileNotFoundError'</span></code> can be raised when reading with <code class="python hljs"><span class="hljs-string">'r'</span></code> or <code class="python hljs"><span class="hljs-string">'r+'</span></code>.</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'FileExistsError'</span></code> can be raised when writing with <code class="python hljs"><span class="hljs-string">'x'</span></code>.</strong></li>
@ -1399,7 +1399,7 @@ args = p.parse_args() <span class="h
&lt;bool&gt; = os.path.isdir(&lt;path&gt;) <span class="hljs-comment"># Or: &lt;DirEntry/Path&gt;.is_dir()</span>
</code></pre>
<pre><code class="python language-python hljs">&lt;stat&gt; = os.stat(&lt;path&gt;) <span class="hljs-comment"># Or: &lt;DirEntry/Path&gt;.stat()</span>
&lt;num&gt; = &lt;stat&gt;.st_mtime/st_size/… <span class="hljs-comment"># Modification time, size in bytes, ...</span>
&lt;num&gt; = &lt;stat&gt;.st_mtime/st_size/… <span class="hljs-comment"># Modification time, size in bytes, etc.</span>
</code></pre>
<div><h3 id="direntry">DirEntry</h3><p><strong>Unlike listdir(), scandir() returns DirEntry objects that cache isfile, isdir, and on Windows also stat information, thus significantly increasing the performance of code that requires it.</strong></p><pre><code class="python language-python hljs">&lt;iter&gt; = os.scandir(path=<span class="hljs-string">'.'</span>) <span class="hljs-comment"># Returns DirEntry objects located at the path.</span>
&lt;str&gt; = &lt;DirEntry&gt;.path <span class="hljs-comment"># Returns the whole path as a string.</span>
@ -2568,7 +2568,7 @@ W, H, MAX_S = <span class="hljs-number">50</span>, <span class="hljs-number">50<
main()
</code></pre></div>
<div><h2 id="pandas"><a href="#pandas" name="pandas">#</a>Pandas</h2><p><strong>Data analysis library. For examples see <a href="#displays-a-line-chart-of-total-coronavirus-deaths-per-million-grouped-by-continent">Plotly</a>.</strong></p><pre><code class="python language-python hljs"><span class="hljs-comment"># $ pip3 install pandas matplotlib</span>
<div><h2 id="pandas"><a href="#pandas" name="pandas">#</a>Pandas</h2><p><strong>Data analysis library. For examples see <a href="#displaysalinechartoftotalcoronavirusdeathspermilliongroupedbycontinent">Plotly</a>.</strong></p><pre><code class="python language-python hljs"><span class="hljs-comment"># $ pip3 install pandas matplotlib</span>
<span class="hljs-keyword">import</span> pandas <span class="hljs-keyword">as</span> pd, matplotlib.pyplot <span class="hljs-keyword">as</span> plt
</code></pre></div>
@ -2923,7 +2923,7 @@ $ deactivate <span class="hljs-comment"># Deactivates the active
<footer>
<aside>November 18, 2024</aside>
<aside>November 19, 2024</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</footer>

3
parse.js
View File

@ -37,7 +37,7 @@ const TOC =
' <strong><span class="hljs-string">\'4. System\'</span></strong>: [<a href="#exit">Exit</a>, <a href="#print">Print</a>, <a href="#input">Input</a>, <a href="#commandlinearguments">Command_Line_Arguments</a>, <a href="#open">Open</a>, <a href="#paths">Path</a>, <a href="#oscommands">OS_Commands</a>],\n' +
' <strong><span class="hljs-string">\'5. Data\'</span></strong>: [<a href="#json">JSON</a>, <a href="#pickle">Pickle</a>, <a href="#csv">CSV</a>, <a href="#sqlite">SQLite</a>, <a href="#bytes">Bytes</a>, <a href="#struct">Struct</a>, <a href="#array">Array</a>, <a href="#memoryview">Memory_View</a>, <a href="#deque">Deque</a>],\n' +
' <strong><span class="hljs-string">\'6. Advanced\'</span></strong>: [<a href="#threading">Threading</a>, <a href="#operator">Operator</a>, <a href="#matchstatement">Match_Stmt</a>, <a href="#logging">Logging</a>, <a href="#introspection">Introspection</a>, <a href="#coroutines">Coroutines</a>],\n' +
' <strong><span class="hljs-string">\'7. Libraries\'</span></strong>: [<a href="#progressbar">Progress_Bar</a>, <a href="#plot">Plot</a>, <a href="#table">Table</a>, <a href="#consoleapp">Console_App</a>, <a href="#guiapp">GUI</a>, <a href="#scraping">Scraping</a>, <a href="#web">Web</a>, <a href="#profiling">Profile</a>],\n' +
' <strong><span class="hljs-string">\'7. Libraries\'</span></strong>: [<a href="#progressbar">Progress_Bar</a>, <a href="#plot">Plot</a>, <a href="#table">Table</a>, <a href="#consoleapp">Console_App</a>, <a href="#guiapp">GUI</a>, <a href="#scraping">Scraping</a>, <a href="#webapp">Web</a>, <a href="#profiling">Profile</a>],\n' +
' <strong><span class="hljs-string">\'8. Multimedia\'</span></strong>: [<a href="#numpy">NumPy</a>, <a href="#image">Image</a>, <a href="#animation">Animation</a>, <a href="#audio">Audio</a>, <a href="#synthesizer">Synthesizer</a>, <a href="#pygame">Pygame</a>, <a href="#pandas">Pandas</a>, <a href="#plotly">Plotly</a>]\n' +
'}\n' +
'</code></pre>\n';
@ -716,6 +716,7 @@ function getMd() {
var readme = readme.replace("#semaphore-event-barrier", "#semaphoreeventbarrier");
var readme = readme.replace("#semaphore-event-barrier", "#semaphoreeventbarrier");
var readme = readme.replace("#dataframe-plot-encode-decode", "#dataframeplotencodedecode");
var readme = readme.replace("#displays-a-line-chart-of-total-coronavirus-deaths-per-million-grouped-by-continent", "#displaysalinechartoftotalcoronavirusdeathspermilliongroupedbycontinent");
const converter = new showdown.Converter();
return converter.makeHtml(readme);
}

4
web/script_2.js
View File

@ -6,7 +6,7 @@ const TOC =
' <strong><span class="hljs-string">\'4. System\'</span></strong>: [<a href="#exit">Exit</a>, <a href="#print">Print</a>, <a href="#input">Input</a>, <a href="#commandlinearguments">Command_Line_Arguments</a>, <a href="#open">Open</a>, <a href="#paths">Path</a>, <a href="#oscommands">OS_Commands</a>],\n' +
' <strong><span class="hljs-string">\'5. Data\'</span></strong>: [<a href="#json">JSON</a>, <a href="#pickle">Pickle</a>, <a href="#csv">CSV</a>, <a href="#sqlite">SQLite</a>, <a href="#bytes">Bytes</a>, <a href="#struct">Struct</a>, <a href="#array">Array</a>, <a href="#memoryview">Memory_View</a>, <a href="#deque">Deque</a>],\n' +
' <strong><span class="hljs-string">\'6. Advanced\'</span></strong>: [<a href="#threading">Threading</a>, <a href="#operator">Operator</a>, <a href="#matchstatement">Match_Stmt</a>, <a href="#logging">Logging</a>, <a href="#introspection">Introspection</a>, <a href="#coroutines">Coroutines</a>],\n' +
' <strong><span class="hljs-string">\'7. Libraries\'</span></strong>: [<a href="#progressbar">Progress_Bar</a>, <a href="#plot">Plot</a>, <a href="#table">Table</a>, <a href="#consoleapp">Console_App</a>, <a href="#guiapp">GUI</a>, <a href="#scraping">Scraping</a>, <a href="#web">Web</a>, <a href="#profiling">Profile</a>],\n' +
' <strong><span class="hljs-string">\'7. Libraries\'</span></strong>: [<a href="#progressbar">Progress_Bar</a>, <a href="#plot">Plot</a>, <a href="#table">Table</a>, <a href="#consoleapp">Console_App</a>, <a href="#guiapp">GUI</a>, <a href="#scraping">Scraping</a>, <a href="#webapp">Web</a>, <a href="#profiling">Profile</a>],\n' +
' <strong><span class="hljs-string">\'8. Multimedia\'</span></strong>: [<a href="#numpy">NumPy</a>, <a href="#image">Image</a>, <a href="#animation">Animation</a>, <a href="#audio">Audio</a>, <a href="#synthesizer">Synthesizer</a>, <a href="#pygame">Pygame</a>, <a href="#pandas">Pandas</a>, <a href="#plotly">Plotly</a>]\n' +
'}\n';
@ -32,7 +32,7 @@ const TOC_MOBILE =
' <a href="#introspection">Introspection</a>, <a href="#coroutines">Coroutines</a>],\n' +
' <strong><span class="hljs-string">\'7. Libraries\'</span></strong>: [<a href="#progressbar">Progress_Bar</a>, <a href="#plot">Plot</a>, <a href="#table">Table</a>,\n' +
' <a href="#consoleapp">Console_App</a>, <a href="#guiapp">GUI_App</a>,\n' +
' <a href="#scraping">Scraping</a>, <a href="#web">Web</a>, <a href="#profiling">Profiling</a>],\n' +
' <a href="#scraping">Scraping</a>, <a href="#webapp">Web</a>, <a href="#profiling">Profiling</a>],\n' +
' <strong><span class="hljs-string">\'8. Multimedia\'</span></strong>: [<a href="#numpy">NumPy</a>, <a href="#image">Image</a>, <a href="#animation">Animation</a>,\n' +
' <a href="#audio">Audio</a>, <a href="#synthesizer">Synthesizer</a>,\n' +
' <a href="#pygame">Pygame</a>, <a href="#pandas">Pandas</a>, <a href="#plotly">Plotly</a>]\n' +

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