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python-cheatsheet
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Datetime, Exceptions

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Jure Šorn 1 year ago
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3 changed files with 9 additions and 9 deletions
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  1. 6
      README.md
  2. 10
      index.html
  3. 2
      parse.js

6
README.md
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@ -659,7 +659,7 @@ from dateutil.tz import tzlocal, gettz
<TD> = <DTa> - <DTa> # Ignores time jumps if they share tzinfo object. <TD> = <DTa> - <DTa> # Ignores time jumps if they share tzinfo object.
<D/DT> = <D/DT> ± <TD> # Returned datetime can fall into missing hour. <D/DT> = <D/DT> ± <TD> # Returned datetime can fall into missing hour.
<TD> = <TD> * <float> # Also: <TD> = abs(<TD>) and <TD> = <TD> ±% <TD>. <TD> = <TD> * <float> # Also: <TD> = abs(<TD>) and <TD> = <TD> ±% <TD>.
<float> = <TD> / <TD> # How many weeks/years there are in TD. Also //.
<float> = <TD> / <TD> # How many hours/weeks/years are in TD. Also //.
``` ```
@ -1459,7 +1459,7 @@ BaseException
+-- OSError # Errors such as FileExistsError/PermissionError (see #Open). +-- OSError # Errors such as FileExistsError/PermissionError (see #Open).
| +-- ConnectionError # Errors such as BrokenPipeError/ConnectionAbortedError. | +-- ConnectionError # Errors such as BrokenPipeError/ConnectionAbortedError.
+-- RuntimeError # Raised by errors that don't fall into other categories. +-- RuntimeError # Raised by errors that don't fall into other categories.
| +-- NotImplementedErr # Can be raised by abstract methods or by unfinished code.
| +-- NotImplementedEr… # Can be raised by abstract methods or by unfinished code.
| +-- RecursionError # Raised when the maximum recursion depth is exceeded. | +-- RecursionError # Raised when the maximum recursion depth is exceeded.
+-- StopIteration # Raised by next() when run on an empty iterator. +-- StopIteration # Raised by next() when run on an empty iterator.
+-- TypeError # Raised when an argument is of the wrong type. +-- TypeError # Raised when an argument is of the wrong type.
@ -1482,7 +1482,7 @@ BaseException
```python ```python
raise TypeError('Argument is of the wrong type!') raise TypeError('Argument is of the wrong type!')
raise ValueError('Argument has the right type but an inappropriate value!') raise ValueError('Argument has the right type but an inappropriate value!')
raise RuntimeError('None of above!')
raise RuntimeError('I am too lazy to define my own exception!')
``` ```
### User-defined Exceptions ### User-defined Exceptions

10
index.html
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@ -54,7 +54,7 @@
<body> <body>
<header> <header>
<aside>January 5, 2024</aside>
<aside>January 6, 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>
@ -580,7 +580,7 @@ Point(x=<span class="hljs-number">1</span>, y=<span class="hljs-number">2</span>
&lt;TD&gt; = &lt;DTa&gt; - &lt;DTa&gt; <span class="hljs-comment"># Ignores time jumps if they share tzinfo object.</span> &lt;TD&gt; = &lt;DTa&gt; - &lt;DTa&gt; <span class="hljs-comment"># Ignores time jumps if they share tzinfo object.</span>
&lt;D/DT&gt; = &lt;D/DT&gt; ± &lt;TD&gt; <span class="hljs-comment"># Returned datetime can fall into missing hour.</span> &lt;D/DT&gt; = &lt;D/DT&gt; ± &lt;TD&gt; <span class="hljs-comment"># Returned datetime can fall into missing hour.</span>
&lt;TD&gt; = &lt;TD&gt; * &lt;float&gt; <span class="hljs-comment"># Also: &lt;TD&gt; = abs(&lt;TD&gt;) and &lt;TD&gt; = &lt;TD&gt; ±% &lt;TD&gt;.</span> &lt;TD&gt; = &lt;TD&gt; * &lt;float&gt; <span class="hljs-comment"># Also: &lt;TD&gt; = abs(&lt;TD&gt;) and &lt;TD&gt; = &lt;TD&gt; ±% &lt;TD&gt;.</span>
&lt;float&gt; = &lt;TD&gt; / &lt;TD&gt; <span class="hljs-comment"># How many weeks/years there are in TD. Also //.</span>
&lt;float&gt; = &lt;TD&gt; / &lt;TD&gt; <span class="hljs-comment"># How many hours/weeks/years are in TD. Also //.</span>
</code></pre></div> </code></pre></div>
<div><h2 id="arguments"><a href="#arguments" name="arguments">#</a>Arguments</h2><div><h3 id="insidefunctioncall">Inside Function Call</h3><pre><code class="python language-python hljs">func(&lt;positional_args&gt;) <span class="hljs-comment"># func(0, 0)</span> <div><h2 id="arguments"><a href="#arguments" name="arguments">#</a>Arguments</h2><div><h3 id="insidefunctioncall">Inside Function Call</h3><pre><code class="python language-python hljs">func(&lt;positional_args&gt;) <span class="hljs-comment"># func(0, 0)</span>
@ -1244,7 +1244,7 @@ error_msg = <span class="hljs-string">''</span>.join(traceback.format_exception(
├── OSError <span class="hljs-comment"># Errors such as FileExistsError/PermissionError (see #Open).</span> ├── OSError <span class="hljs-comment"># Errors such as FileExistsError/PermissionError (see #Open).</span>
│ └── ConnectionError <span class="hljs-comment"># Errors such as BrokenPipeError/ConnectionAbortedError.</span> │ └── ConnectionError <span class="hljs-comment"># Errors such as BrokenPipeError/ConnectionAbortedError.</span>
├── RuntimeError <span class="hljs-comment"># Raised by errors that don't fall into other categories.</span> ├── RuntimeError <span class="hljs-comment"># Raised by errors that don't fall into other categories.</span>
│ ├── NotImplementedErr <span class="hljs-comment"># Can be raised by abstract methods or by unfinished code.</span>
│ ├── NotImplementedEr… <span class="hljs-comment"># Can be raised by abstract methods or by unfinished code.</span>
│ └── RecursionError <span class="hljs-comment"># Raised when the maximum recursion depth is exceeded.</span> │ └── RecursionError <span class="hljs-comment"># Raised when the maximum recursion depth is exceeded.</span>
├── StopIteration <span class="hljs-comment"># Raised by next() when run on an empty iterator.</span> ├── StopIteration <span class="hljs-comment"># Raised by next() when run on an empty iterator.</span>
├── TypeError <span class="hljs-comment"># Raised when an argument is of the wrong type.</span> ├── TypeError <span class="hljs-comment"># Raised when an argument is of the wrong type.</span>
@ -1263,7 +1263,7 @@ error_msg = <span class="hljs-string">''</span>.join(traceback.format_exception(
<div><h4 id="usefulbuiltinexceptions">Useful built-in exceptions:</h4><pre><code class="python language-python hljs"><span class="hljs-keyword">raise</span> TypeError(<span class="hljs-string">'Argument is of the wrong type!'</span>) <div><h4 id="usefulbuiltinexceptions">Useful built-in exceptions:</h4><pre><code class="python language-python hljs"><span class="hljs-keyword">raise</span> TypeError(<span class="hljs-string">'Argument is of the wrong type!'</span>)
<span class="hljs-keyword">raise</span> ValueError(<span class="hljs-string">'Argument has the right type but an inappropriate value!'</span>) <span class="hljs-keyword">raise</span> ValueError(<span class="hljs-string">'Argument has the right type but an inappropriate value!'</span>)
<span class="hljs-keyword">raise</span> RuntimeError(<span class="hljs-string">'None of above!'</span>)
<span class="hljs-keyword">raise</span> RuntimeError(<span class="hljs-string">'I am too lazy to define my own exception!'</span>)
</code></pre></div> </code></pre></div>
<div><h3 id="userdefinedexceptions">User-defined Exceptions</h3><pre><code class="python language-python hljs"><span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">MyError</span><span class="hljs-params">(Exception)</span>:</span> <span class="hljs-keyword">pass</span> <div><h3 id="userdefinedexceptions">User-defined Exceptions</h3><pre><code class="python language-python hljs"><span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">MyError</span><span class="hljs-params">(Exception)</span>:</span> <span class="hljs-keyword">pass</span>
@ -2933,7 +2933,7 @@ $ deactivate <span class="hljs-comment"># Deactivates the activ
<footer> <footer>
<aside>January 5, 2024</aside>
<aside>January 6, 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>

2
parse.js
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@ -442,7 +442,7 @@ const DIAGRAM_7_B =
" ├── OSError <span class='hljs-comment'># Errors such as FileExistsError/PermissionError (see #Open).</span>\n" + " ├── OSError <span class='hljs-comment'># Errors such as FileExistsError/PermissionError (see #Open).</span>\n" +
" │ └── ConnectionError <span class='hljs-comment'># Errors such as BrokenPipeError/ConnectionAbortedError.</span>\n" + " │ └── ConnectionError <span class='hljs-comment'># Errors such as BrokenPipeError/ConnectionAbortedError.</span>\n" +
" ├── RuntimeError <span class='hljs-comment'># Raised by errors that don't fall into other categories.</span>\n" + " ├── RuntimeError <span class='hljs-comment'># Raised by errors that don't fall into other categories.</span>\n" +
" │ ├── NotImplementedErr <span class='hljs-comment'># Can be raised by abstract methods or by unfinished code.</span>\n" +
" │ ├── NotImplementedEr… <span class='hljs-comment'># Can be raised by abstract methods or by unfinished code.</span>\n" +
" │ └── RecursionError <span class='hljs-comment'># Raised when the maximum recursion depth is exceeded.</span>\n" + " │ └── RecursionError <span class='hljs-comment'># Raised when the maximum recursion depth is exceeded.</span>\n" +
" ├── StopIteration <span class='hljs-comment'># Raised by next() when run on an empty iterator.</span>\n" + " ├── StopIteration <span class='hljs-comment'># Raised by next() when run on an empty iterator.</span>\n" +
" ├── TypeError <span class='hljs-comment'># Raised when an argument is of the wrong type.</span>\n" + " ├── TypeError <span class='hljs-comment'># Raised when an argument is of the wrong type.</span>\n" +

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