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Datetime, Inline, Logger

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Jure Šorn 1 year ago
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  1. 20
      README.md
  2. 24
      index.html

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README.md
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@ -627,8 +627,8 @@ from dateutil.tz import tzlocal, gettz
```python ```python
<D/T/DT> = D/T/DT.fromisoformat(<str>) # Object from ISO string. Raises ValueError. <D/T/DT> = D/T/DT.fromisoformat(<str>) # Object from ISO string. Raises ValueError.
<DT> = DT.strptime(<str>, '<format>') # Datetime from str, according to format. <DT> = DT.strptime(<str>, '<format>') # Datetime from str, according to format.
<D/DTn> = D/DT.fromordinal(<int>) # D/DTn from days since the Gregorian NYE 1.
<DTn> = DT.fromtimestamp(<float>) # Local time DTn from seconds since the Epoch.
<D/DTn> = D/DT.fromordinal(<int>) # D/DT from days since the Gregorian NYE 1.
<DTn> = DT.fromtimestamp(<float>) # Local naive DT from seconds since the Epoch.
<DTa> = DT.fromtimestamp(<float>, <tz>) # Aware datetime from seconds since the Epoch. <DTa> = DT.fromtimestamp(<float>, <tz>) # Aware datetime from seconds since the Epoch.
``` ```
* **ISO strings come in following forms: `'YYYY-MM-DD'`, `'HH:MM:SS.mmmuuu[±HH:MM]'`, or both separated by an arbitrary character. All parts following the hours are optional.** * **ISO strings come in following forms: `'YYYY-MM-DD'`, `'HH:MM:SS.mmmuuu[±HH:MM]'`, or both separated by an arbitrary character. All parts following the hours are optional.**
@ -639,7 +639,7 @@ from dateutil.tz import tzlocal, gettz
<str> = <D/T/DT>.isoformat(sep='T') # Also `timespec='auto/hours/minutes/seconds/…'`. <str> = <D/T/DT>.isoformat(sep='T') # Also `timespec='auto/hours/minutes/seconds/…'`.
<str> = <D/T/DT>.strftime('<format>') # Custom string representation of the object. <str> = <D/T/DT>.strftime('<format>') # Custom string representation of the object.
<int> = <D/DT>.toordinal() # Days since Gregorian NYE 1, ignoring time and tz. <int> = <D/DT>.toordinal() # Days since Gregorian NYE 1, ignoring time and tz.
<float> = <DTn>.timestamp() # Seconds since the Epoch, from DTn in local tz.
<float> = <DTn>.timestamp() # Seconds since the Epoch, from local naive DT.
<float> = <DTa>.timestamp() # Seconds since the Epoch, from aware datetime. <float> = <DTa>.timestamp() # Seconds since the Epoch, from aware datetime.
``` ```
@ -752,7 +752,7 @@ Inline
### Lambda ### Lambda
```python ```python
<func> = lambda: <return_value> # A single statement function. <func> = lambda: <return_value> # A single statement function.
<func> = lambda <arg_1>, <arg_2>: <return_value> # Also accepts default arguments.
<func> = lambda <arg_1>, <arg_2>: <return_value> # Also allows default arguments.
``` ```
### Comprehensions ### Comprehensions
@ -764,7 +764,7 @@ Inline
``` ```
```python ```python
>>> [l+r for l in 'abc' for r in 'abc']
>>> [l+r for l in 'abc' for r in 'abc'] # Inner loop is on the right side.
['aa', 'ab', 'ac', ..., 'cc'] ['aa', 'ab', 'ac', ..., 'cc']
``` ```
@ -781,13 +781,13 @@ from functools import reduce
### Any, All ### Any, All
```python ```python
<bool> = any(<collection>) # Is `bool(<el>)` True for any element.
<bool> = all(<collection>) # Is True for all elements or empty.
<bool> = any(<collection>) # Is `bool(<el>)` True for any el?
<bool> = all(<collection>) # Is True for all or is it empty?
``` ```
### Conditional Expression ### Conditional Expression
```python ```python
<obj> = <exp> if <condition> else <exp> # Only one expression gets evaluated.
<obj> = <exp> if <condition> else <exp> # Only one expression is evaluated.
``` ```
```python ```python
@ -2236,7 +2236,7 @@ logging.basicConfig(filename=<path>, level='DEBUG') # Configures the root logge
logging.debug/info/warning/error/critical(<str>) # Logs to the root logger. logging.debug/info/warning/error/critical(<str>) # Logs to the root logger.
<Logger> = logging.getLogger(__name__) # Logger named after the module. <Logger> = logging.getLogger(__name__) # Logger named after the module.
<Logger>.<level>(<str>) # Logs to the logger. <Logger>.<level>(<str>) # Logs to the logger.
<Logger>.exception(<str>) # Calls error() with caught exception.
<Logger>.exception(<str>) # Error() that appends caught exception.
``` ```
### Setup ### Setup
@ -2816,7 +2816,7 @@ from PIL import ImageDraw
<ImageDraw>.rectangle((x1, y1, x2, y2)) # To rotate use Image's rotate() and paste(). <ImageDraw>.rectangle((x1, y1, x2, y2)) # To rotate use Image's rotate() and paste().
<ImageDraw>.polygon((x1, y1, x2, y2, ...)) # Last point gets connected to the first. <ImageDraw>.polygon((x1, y1, x2, y2, ...)) # Last point gets connected to the first.
<ImageDraw>.ellipse((x1, y1, x2, y2)) # To rotate use Image's rotate() and paste(). <ImageDraw>.ellipse((x1, y1, x2, y2)) # To rotate use Image's rotate() and paste().
<ImageDraw>.text((x, y), text, font=<Font>) # `<Font> = ImageFont.truetype(<path>, size)`
<ImageDraw>.text((x, y), <str>, font=<Font>) # `<Font> = ImageFont.truetype(<path>, size)`
``` ```
* **Use `'fill=<color>'` to set the primary color.** * **Use `'fill=<color>'` to set the primary color.**
* **Use `'width=<int>'` to set the width of lines or contours.** * **Use `'width=<int>'` to set the width of lines or contours.**

24
index.html
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@ -54,7 +54,7 @@
<body> <body>
<header> <header>
<aside>January 27, 2024</aside>
<aside>January 28, 2024</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a> <a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</header> </header>
@ -550,8 +550,8 @@ Point(x=<span class="hljs-number">1</span>, y=<span class="hljs-number">2</span>
</ul> </ul>
<div><h3 id="encode">Encode</h3><pre><code class="python language-python apache hljs">&lt;D/T/DT&gt; = D/T/DT.fromisoformat(&lt;str&gt;) <span class="hljs-comment"># Object from ISO string. Raises ValueError.</span> <div><h3 id="encode">Encode</h3><pre><code class="python language-python apache hljs">&lt;D/T/DT&gt; = D/T/DT.fromisoformat(&lt;str&gt;) <span class="hljs-comment"># Object from ISO string. Raises ValueError.</span>
&lt;DT&gt; = DT.strptime(&lt;str&gt;, <span class="hljs-string">'&lt;format&gt;'</span>) <span class="hljs-comment"># Datetime from str, according to format.</span> &lt;DT&gt; = DT.strptime(&lt;str&gt;, <span class="hljs-string">'&lt;format&gt;'</span>) <span class="hljs-comment"># Datetime from str, according to format.</span>
&lt;D/DTn&gt; = D/DT.fromordinal(&lt;int&gt;) <span class="hljs-comment"># D/DTn from days since the Gregorian NYE 1.</span>
&lt;DTn&gt; = DT.fromtimestamp(&lt;float&gt;) <span class="hljs-comment"># Local time DTn from seconds since the Epoch.</span>
&lt;D/DTn&gt; = D/DT.fromordinal(&lt;int&gt;) <span class="hljs-comment"># D/DT from days since the Gregorian NYE 1.</span>
&lt;DTn&gt; = DT.fromtimestamp(&lt;float&gt;) <span class="hljs-comment"># Local naive DT from seconds since the Epoch.</span>
&lt;DTa&gt; = DT.fromtimestamp(&lt;float&gt;, &lt;tz&gt;) <span class="hljs-comment"># Aware datetime from seconds since the Epoch.</span> &lt;DTa&gt; = DT.fromtimestamp(&lt;float&gt;, &lt;tz&gt;) <span class="hljs-comment"># Aware datetime from seconds since the Epoch.</span>
</code></pre></div> </code></pre></div>
@ -562,7 +562,7 @@ Point(x=<span class="hljs-number">1</span>, y=<span class="hljs-number">2</span>
<div><h3 id="decode">Decode</h3><pre><code class="python language-python hljs">&lt;str&gt; = &lt;D/T/DT&gt;.isoformat(sep=<span class="hljs-string">'T'</span>) <span class="hljs-comment"># Also `timespec='auto/hours/minutes/seconds/…'`.</span> <div><h3 id="decode">Decode</h3><pre><code class="python language-python hljs">&lt;str&gt; = &lt;D/T/DT&gt;.isoformat(sep=<span class="hljs-string">'T'</span>) <span class="hljs-comment"># Also `timespec='auto/hours/minutes/seconds/…'`.</span>
&lt;str&gt; = &lt;D/T/DT&gt;.strftime(<span class="hljs-string">'&lt;format&gt;'</span>) <span class="hljs-comment"># Custom string representation of the object.</span> &lt;str&gt; = &lt;D/T/DT&gt;.strftime(<span class="hljs-string">'&lt;format&gt;'</span>) <span class="hljs-comment"># Custom string representation of the object.</span>
&lt;int&gt; = &lt;D/DT&gt;.toordinal() <span class="hljs-comment"># Days since Gregorian NYE 1, ignoring time and tz.</span> &lt;int&gt; = &lt;D/DT&gt;.toordinal() <span class="hljs-comment"># Days since Gregorian NYE 1, ignoring time and tz.</span>
&lt;float&gt; = &lt;DTn&gt;.timestamp() <span class="hljs-comment"># Seconds since the Epoch, from DTn in local tz.</span>
&lt;float&gt; = &lt;DTn&gt;.timestamp() <span class="hljs-comment"># Seconds since the Epoch, from local naive DT.</span>
&lt;float&gt; = &lt;DTa&gt;.timestamp() <span class="hljs-comment"># Seconds since the Epoch, from aware datetime.</span> &lt;float&gt; = &lt;DTa&gt;.timestamp() <span class="hljs-comment"># Seconds since the Epoch, from aware datetime.</span>
</code></pre></div> </code></pre></div>
@ -642,7 +642,7 @@ func(*args, **kwargs)
<pre><code class="python language-python hljs">head, *body, tail = &lt;coll.&gt; <span class="hljs-comment"># Head or tail can be omitted.</span> <pre><code class="python language-python hljs">head, *body, tail = &lt;coll.&gt; <span class="hljs-comment"># Head or tail can be omitted.</span>
</code></pre> </code></pre>
<div><h2 id="inline"><a href="#inline" name="inline">#</a>Inline</h2><div><h3 id="lambda">Lambda</h3><pre><code class="python language-python hljs">&lt;func&gt; = <span class="hljs-keyword">lambda</span>: &lt;return_value&gt; <span class="hljs-comment"># A single statement function.</span> <div><h2 id="inline"><a href="#inline" name="inline">#</a>Inline</h2><div><h3 id="lambda">Lambda</h3><pre><code class="python language-python hljs">&lt;func&gt; = <span class="hljs-keyword">lambda</span>: &lt;return_value&gt; <span class="hljs-comment"># A single statement function.</span>
&lt;func&gt; = <span class="hljs-keyword">lambda</span> &lt;arg_1&gt;, &lt;arg_2&gt;: &lt;return_value&gt; <span class="hljs-comment"># Also accepts default arguments.</span>
&lt;func&gt; = <span class="hljs-keyword">lambda</span> &lt;arg_1&gt;, &lt;arg_2&gt;: &lt;return_value&gt; <span class="hljs-comment"># Also allows default arguments.</span>
</code></pre></div></div> </code></pre></div></div>
@ -652,7 +652,7 @@ func(*args, **kwargs)
&lt;dict&gt; = {i: i*<span class="hljs-number">2</span> <span class="hljs-keyword">for</span> i <span class="hljs-keyword">in</span> range(<span class="hljs-number">10</span>)} <span class="hljs-comment"># Or: {0: 0, 1: 2, ..., 9: 18}</span> &lt;dict&gt; = {i: i*<span class="hljs-number">2</span> <span class="hljs-keyword">for</span> i <span class="hljs-keyword">in</span> range(<span class="hljs-number">10</span>)} <span class="hljs-comment"># Or: {0: 0, 1: 2, ..., 9: 18}</span>
</code></pre></div> </code></pre></div>
<pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>[l+r <span class="hljs-keyword">for</span> l <span class="hljs-keyword">in</span> <span class="hljs-string">'abc'</span> <span class="hljs-keyword">for</span> r <span class="hljs-keyword">in</span> <span class="hljs-string">'abc'</span>]
<pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>[l+r <span class="hljs-keyword">for</span> l <span class="hljs-keyword">in</span> <span class="hljs-string">'abc'</span> <span class="hljs-keyword">for</span> r <span class="hljs-keyword">in</span> <span class="hljs-string">'abc'</span>] <span class="hljs-comment"># Inner loop is on the right side.</span>
[<span class="hljs-string">'aa'</span>, <span class="hljs-string">'ab'</span>, <span class="hljs-string">'ac'</span>, ..., <span class="hljs-string">'cc'</span>] [<span class="hljs-string">'aa'</span>, <span class="hljs-string">'ab'</span>, <span class="hljs-string">'ac'</span>, ..., <span class="hljs-string">'cc'</span>]
</code></pre> </code></pre>
<div><h3 id="mapfilterreduce">Map, Filter, Reduce</h3><pre><code class="python language-python hljs"><span class="hljs-keyword">from</span> functools <span class="hljs-keyword">import</span> reduce <div><h3 id="mapfilterreduce">Map, Filter, Reduce</h3><pre><code class="python language-python hljs"><span class="hljs-keyword">from</span> functools <span class="hljs-keyword">import</span> reduce
@ -662,11 +662,11 @@ func(*args, **kwargs)
&lt;iter&gt; = filter(<span class="hljs-keyword">lambda</span> x: x &gt; <span class="hljs-number">5</span>, range(<span class="hljs-number">10</span>)) <span class="hljs-comment"># Or: iter([6, 7, 8, 9])</span> &lt;iter&gt; = filter(<span class="hljs-keyword">lambda</span> x: x &gt; <span class="hljs-number">5</span>, range(<span class="hljs-number">10</span>)) <span class="hljs-comment"># Or: iter([6, 7, 8, 9])</span>
&lt;obj&gt; = reduce(<span class="hljs-keyword">lambda</span> out, x: out + x, range(<span class="hljs-number">10</span>)) <span class="hljs-comment"># Or: 45</span> &lt;obj&gt; = reduce(<span class="hljs-keyword">lambda</span> out, x: out + x, range(<span class="hljs-number">10</span>)) <span class="hljs-comment"># Or: 45</span>
</code></pre> </code></pre>
<div><h3 id="anyall">Any, All</h3><pre><code class="python language-python hljs">&lt;bool&gt; = any(&lt;collection&gt;) <span class="hljs-comment"># Is `bool(&lt;el&gt;)` True for any element.</span>
&lt;bool&gt; = all(&lt;collection&gt;) <span class="hljs-comment"># Is True for all elements or empty.</span>
<div><h3 id="anyall">Any, All</h3><pre><code class="python language-python hljs">&lt;bool&gt; = any(&lt;collection&gt;) <span class="hljs-comment"># Is `bool(&lt;el&gt;)` True for any el?</span>
&lt;bool&gt; = all(&lt;collection&gt;) <span class="hljs-comment"># Is True for all or is it empty?</span>
</code></pre></div> </code></pre></div>
<div><h3 id="conditionalexpression">Conditional Expression</h3><pre><code class="python language-python hljs">&lt;obj&gt; = &lt;exp&gt; <span class="hljs-keyword">if</span> &lt;condition&gt; <span class="hljs-keyword">else</span> &lt;exp&gt; <span class="hljs-comment"># Only one expression gets evaluated.</span>
<div><h3 id="conditionalexpression">Conditional Expression</h3><pre><code class="python language-python hljs">&lt;obj&gt; = &lt;exp&gt; <span class="hljs-keyword">if</span> &lt;condition&gt; <span class="hljs-keyword">else</span> &lt;exp&gt; <span class="hljs-comment"># Only one expression is evaluated.</span>
</code></pre></div> </code></pre></div>
<pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>[a <span class="hljs-keyword">if</span> a <span class="hljs-keyword">else</span> <span class="hljs-string">'zero'</span> <span class="hljs-keyword">for</span> a <span class="hljs-keyword">in</span> (<span class="hljs-number">0</span>, <span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>)] <span class="hljs-comment"># `any([0, '', [], None]) == False`</span> <pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>[a <span class="hljs-keyword">if</span> a <span class="hljs-keyword">else</span> <span class="hljs-string">'zero'</span> <span class="hljs-keyword">for</span> a <span class="hljs-keyword">in</span> (<span class="hljs-number">0</span>, <span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>)] <span class="hljs-comment"># `any([0, '', [], None]) == False`</span>
@ -1844,7 +1844,7 @@ first_element = op.methodcaller(<span class="hljs-string">'pop'</span>, <span
logging.debug/info/warning/error/critical(&lt;str&gt;) <span class="hljs-comment"># Logs to the root logger.</span> logging.debug/info/warning/error/critical(&lt;str&gt;) <span class="hljs-comment"># Logs to the root logger.</span>
&lt;Logger&gt; = logging.getLogger(__name__) <span class="hljs-comment"># Logger named after the module.</span> &lt;Logger&gt; = logging.getLogger(__name__) <span class="hljs-comment"># Logger named after the module.</span>
&lt;Logger&gt;.&lt;level&gt;(&lt;str&gt;) <span class="hljs-comment"># Logs to the logger.</span> &lt;Logger&gt;.&lt;level&gt;(&lt;str&gt;) <span class="hljs-comment"># Logs to the logger.</span>
&lt;Logger&gt;.exception(&lt;str&gt;) <span class="hljs-comment"># Calls error() with caught exception.</span>
&lt;Logger&gt;.exception(&lt;str&gt;) <span class="hljs-comment"># Error() that appends caught exception.</span>
</code></pre> </code></pre>
<div><h3 id="setup">Setup</h3><pre><code class="python language-python hljs">logging.basicConfig( <div><h3 id="setup">Setup</h3><pre><code class="python language-python hljs">logging.basicConfig(
filename=<span class="hljs-keyword">None</span>, <span class="hljs-comment"># Logs to console (stderr) by default.</span> filename=<span class="hljs-keyword">None</span>, <span class="hljs-comment"># Logs to console (stderr) by default.</span>
@ -2311,7 +2311,7 @@ img.show()
&lt;ImageDraw&gt;.rectangle((x1, y1, x2, y2)) <span class="hljs-comment"># To rotate use Image's rotate() and paste().</span> &lt;ImageDraw&gt;.rectangle((x1, y1, x2, y2)) <span class="hljs-comment"># To rotate use Image's rotate() and paste().</span>
&lt;ImageDraw&gt;.polygon((x1, y1, x2, y2, ...)) <span class="hljs-comment"># Last point gets connected to the first.</span> &lt;ImageDraw&gt;.polygon((x1, y1, x2, y2, ...)) <span class="hljs-comment"># Last point gets connected to the first.</span>
&lt;ImageDraw&gt;.ellipse((x1, y1, x2, y2)) <span class="hljs-comment"># To rotate use Image's rotate() and paste().</span> &lt;ImageDraw&gt;.ellipse((x1, y1, x2, y2)) <span class="hljs-comment"># To rotate use Image's rotate() and paste().</span>
&lt;ImageDraw&gt;.text((x, y), text, font=&lt;Font&gt;) <span class="hljs-comment"># `&lt;Font&gt; = ImageFont.truetype(&lt;path&gt;, size)`</span>
&lt;ImageDraw&gt;.text((x, y), &lt;str&gt;, font=&lt;Font&gt;) <span class="hljs-comment"># `&lt;Font&gt; = ImageFont.truetype(&lt;path&gt;, size)`</span>
</code></pre></div> </code></pre></div>
<ul> <ul>
@ -2932,7 +2932,7 @@ $ deactivate <span class="hljs-comment"># Deactivates the activ
<footer> <footer>
<aside>January 27, 2024</aside>
<aside>January 28, 2024</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a> <a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</footer> </footer>

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