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Format, Class, NumPy
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‎README.md

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@@ -390,8 +390,8 @@ import re
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Format
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------
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```python
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<str> = f'{<el_1>}, {<el_2>}'
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<str> = '{}, {}'.format(<el_1>, <el_2>)
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<str> = f'{<el_1>}, {<el_2>}' # Or: '%s, %s' % (<el_1>, <el_2>)
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<str> = '{}, {}'.format(<el_1>, <el_2>) # Or: '{0}, {1}'.format(<el_1>, <el_2>)
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```
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### Attributes
@@ -1014,21 +1014,21 @@ class C(A, B): pass
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### Property
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**Pythonic way of implementing getters and setters.**
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```python
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class MyClass:
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class Person:
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@property
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def a(self):
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return self._a
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def name(self):
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return ' '.join(a if a == 'van' else a.title() for a in self._name)
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@a.setter
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def a(self, value):
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self._a = value
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@name.setter
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def name(self, value):
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self._name = value.lower().split()
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```
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```python
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>>> obj = MyClass()
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>>> obj.a = 123
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>>> obj.a
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123
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>>> person = Person()
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>>> person.name = ' gUiDo VaN rOsSuM '
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>>> person.name
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'Guido van Rossum'
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```
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### Dataclass
@@ -2624,7 +2624,7 @@ import numpy as np
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```
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```python
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<array> = np.array(<list>)
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<array> = np.array(<list/list_of_lists>)
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<array> = np.arange(from_inclusive, to_exclusive, ±step_size)
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<array> = np.ones(<shape>)
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<array> = np.random.randint(from_inclusive, to_exclusive, <shape>)

‎index.html

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@@ -54,7 +54,7 @@
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<body>
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<header>
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<aside>January 22, 2022</aside>
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<aside>January 25, 2022</aside>
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<a href="https://gto76.github.io" rel="author">Jure Šorn</a>
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</header>
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@@ -364,8 +364,8 @@
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</code></pre></div>
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<div><h2 id="format"><a href="#format" name="format">#</a>Format</h2><pre><code class="python language-python hljs">&lt;str&gt; = <span class="hljs-string">f'<span class="hljs-subst">{&lt;el_1&gt;}</span>, <span class="hljs-subst">{&lt;el_2&gt;}</span>'</span>
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&lt;str&gt; = <span class="hljs-string">'{}, {}'</span>.format(&lt;el_1&gt;, &lt;el_2&gt;)
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<div><h2 id="format"><a href="#format" name="format">#</a>Format</h2><pre><code class="python language-python hljs">&lt;str&gt; = <span class="hljs-string">f'<span class="hljs-subst">{&lt;el_1&gt;}</span>, <span class="hljs-subst">{&lt;el_2&gt;}</span>'</span> <span class="hljs-comment"># Or: '%s, %s' % (&lt;el_1&gt;, &lt;el_2&gt;)</span>
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&lt;str&gt; = <span class="hljs-string">'{}, {}'</span>.format(&lt;el_1&gt;, &lt;el_2&gt;) <span class="hljs-comment"># Or: '{0}, {1}'.format(&lt;el_1&gt;, &lt;el_2&gt;)</span>
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</code></pre></div>
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<div><h3 id="attributes">Attributes</h3><pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> collections <span class="hljs-keyword">import</span> namedtuple
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<pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>C.mro()
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[&lt;<span class="hljs-class"><span class="hljs-title">class</span> '<span class="hljs-title">C</span>'&gt;, &lt;<span class="hljs-title">class</span> '<span class="hljs-title">A</span>'&gt;, &lt;<span class="hljs-title">class</span> '<span class="hljs-title">B</span>'&gt;, &lt;<span class="hljs-title">class</span> '<span class="hljs-title">object</span>'&gt;]
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</span></code></pre>
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<div><h3 id="property">Property</h3><p><strong>Pythonic way of implementing getters and setters.</strong></p><pre><code class="python language-python hljs"><span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">MyClass</span>:</span>
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<div><h3 id="property">Property</h3><p><strong>Pythonic way of implementing getters and setters.</strong></p><pre><code class="python language-python hljs"><span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Person</span>:</span>
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<span class="hljs-meta"> @property</span>
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<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">a</span><span class="hljs-params">(self)</span>:</span>
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<span class="hljs-keyword">return</span> self._a
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<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">name</span><span class="hljs-params">(self)</span>:</span>
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<span class="hljs-keyword">return</span> <span class="hljs-string">' '</span>.join(a <span class="hljs-keyword">if</span> a == <span class="hljs-string">'van'</span> <span class="hljs-keyword">else</span> a.title() <span class="hljs-keyword">for</span> a <span class="hljs-keyword">in</span> self._name)
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<span class="hljs-meta"> @a.setter</span>
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<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">a</span><span class="hljs-params">(self, value)</span>:</span>
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self._a = value
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<span class="hljs-meta"> @name.setter</span>
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<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">name</span><span class="hljs-params">(self, value)</span>:</span>
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self._name = value.lower().split()
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</code></pre></div>
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<pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>obj = MyClass()
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<span class="hljs-meta">&gt;&gt;&gt; </span>obj.a = <span class="hljs-number">123</span>
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<span class="hljs-meta">&gt;&gt;&gt; </span>obj.a
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<span class="hljs-number">123</span>
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<pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>person = Person()
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<span class="hljs-meta">&gt;&gt;&gt; </span>person.name = <span class="hljs-string">' gUiDo VaN rOsSuM '</span>
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<span class="hljs-meta">&gt;&gt;&gt; </span>person.name
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<span class="hljs-string">'Guido van Rossum'</span>
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</code></pre>
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<div><h3 id="dataclass">Dataclass</h3><p><strong>Decorator that automatically generates init(), repr() and eq() special methods.</strong></p><pre><code class="python language-python hljs"><span class="hljs-keyword">from</span> dataclasses <span class="hljs-keyword">import</span> dataclass, field
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</code></pre></div>
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<pre><code class="python language-python hljs">&lt;array&gt; = np.array(&lt;list&gt;)
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<pre><code class="python language-python hljs">&lt;array&gt; = np.array(&lt;list/list_of_lists&gt;)
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&lt;array&gt; = np.arange(from_inclusive, to_exclusive, ±step_size)
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&lt;array&gt; = np.ones(&lt;shape&gt;)
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&lt;array&gt; = np.random.randint(from_inclusive, to_exclusive, &lt;shape&gt;)
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<footer>
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<aside>January 22, 2022</aside>
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<aside>January 25, 2022</aside>
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<a href="https://gto76.github.io" rel="author">Jure Šorn</a>
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</footer>
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