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python-cheatsheet
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Jure Šorn 5 years ago
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  1. 26
      README.md
  2. 26
      index.html

26
README.md
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@ -212,7 +212,7 @@ from itertools import count, repeat, cycle, chain, islice
```python
<iter> = islice(<collection>, to_exclusive)
<iter> = islice(<collection>, from_inclusive, to_exclusive)
<iter> = islice(<collection>, from_inclusive, to_exclusive, step_size)
<iter> = islice(<collection>, from_inclusive, to_exclusive, +step_size)
```
@ -403,7 +403,7 @@ Format
{<el>:>0} # '<el>'
```
### String Options
### Strings
**`'!r'` calls object's repr() method, instead of format(), to get a string.**
```python
{'abcde'!r:<10} # "'abcde' "
@ -411,7 +411,7 @@ Format
{'abcde':10.3} # 'abc '
```
### Number Options
### Numbers
```python
{ 123456:10,} # ' 123,456'
{ 123456:10_} # ' 123_456'
@ -421,14 +421,30 @@ Format
{-123456: } # '-123456'
```
#### Float types:
### Floats
```python
{1.23456:10.3} # ' 1.23'
{1.23456:10.3f} # ' 1.235'
{1.23456:10.3e} # ' 1.235e+00'
{1.23456:10.3%} # ' 123.456%'
```
#### Int types:
```text
+---------------+--------------+---------------+---------------+---------------+
| | {<float>:.2} | {<float>:.2f} | {<float>:.2e} | {<float>:.2%} |
+---------------+--------------+---------------+---------------+---------------+
| 0.00056789 | '0.00057' | '0.00' | '5.68e-04' | '0.06%' |
| 0.0056789 | '0.0057' | '0.01' | '5.68e-03' | '0.57%' |
| 0.056789 | '0.057' | '0.06' | '5.68e-02' | '5.68%' |
| 0.56789 | '0.57' | '0.57' | '5.68e-01' | '56.79%' |
| 5.6789 | '5.7' | '5.68' | '5.68e+00' | '567.89%' |
| 56.789 | '5.7e+01' | '56.79' | '5.68e+01' | '5678.90%' |
| 567.89 | '5.7e+02' | '567.89' | '5.68e+02' | '56789.00%' |
| 5678.9 | '5.7e+03' | '5678.90' | '5.68e+03' | '567890.00%' |
+---------------+--------------+---------------+---------------+---------------+
```
### Ints
```python
{90:c} # 'Z'
{90:X} # '5A'

26
index.html
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@ -343,7 +343,7 @@ to_exclusive = &lt;range&gt;.stop
</code></pre>
<pre><code class="python language-python hljs">&lt;iter&gt; = islice(&lt;collection&gt;, to_exclusive)
&lt;iter&gt; = islice(&lt;collection&gt;, from_inclusive, to_exclusive)
&lt;iter&gt; = islice(&lt;collection&gt;, from_inclusive, to_exclusive, step_size)
&lt;iter&gt; = islice(&lt;collection&gt;, from_inclusive, to_exclusive, +step_size)
</code></pre>
<h2 id="generator"><a href="#generator" name="generator">#</a>Generator</h2>
<p><strong>Convenient way to implement the iterator protocol.</strong></p>
@ -480,13 +480,13 @@ to_exclusive = &lt;range&gt;.stop
<pre><code class="python language-python hljs">{&lt;el&gt;:.&lt;<span class="hljs-number">10</span>} <span class="hljs-comment"># '&lt;el&gt;......'</span>
{&lt;el&gt;:&gt;<span class="hljs-number">0</span>} <span class="hljs-comment"># '&lt;el&gt;'</span>
</code></pre>
<h3 id="stringoptions">String Options</h3>
<h3 id="strings">Strings</h3>
<p><strong><code class="python hljs"><span class="hljs-string">'!r'</span></code> calls object's repr() method, instead of format(), to get a string.</strong></p>
<pre><code class="python language-python hljs">{<span class="hljs-string">'abcde'</span>!r:&lt;<span class="hljs-number">10</span>} <span class="hljs-comment"># "'abcde' "</span>
{<span class="hljs-string">'abcde'</span>:<span class="hljs-number">.3</span>} <span class="hljs-comment"># 'abc'</span>
{<span class="hljs-string">'abcde'</span>:<span class="hljs-number">10.3</span>} <span class="hljs-comment"># 'abc '</span>
</code></pre>
<h3 id="numberoptions">Number Options</h3>
<h3 id="numbers-1">Numbers</h3>
<pre><code class="python language-python hljs">{ <span class="hljs-number">123456</span>:<span class="hljs-number">10</span>,} <span class="hljs-comment"># ' 123,456'</span>
{ <span class="hljs-number">123456</span>:<span class="hljs-number">10</span>_} <span class="hljs-comment"># ' 123_456'</span>
{ <span class="hljs-number">123456</span>:+<span class="hljs-number">10</span>} <span class="hljs-comment"># ' +123456'</span>
@ -494,12 +494,26 @@ to_exclusive = &lt;range&gt;.stop
{ <span class="hljs-number">123456</span>: } <span class="hljs-comment"># ' 123456'</span>
{<span class="hljs-number">-123456</span>: } <span class="hljs-comment"># '-123456'</span>
</code></pre>
<h4 id="floattypes">Float types:</h4>
<pre><code class="python language-python hljs">{<span class="hljs-number">1.23456</span>:<span class="hljs-number">10.3</span>f} <span class="hljs-comment"># ' 1.235'</span>
<h3 id="floats">Floats</h3>
<pre><code class="python language-python hljs">{<span class="hljs-number">1.23456</span>:<span class="hljs-number">10.3</span>} <span class="hljs-comment"># ' 1.23'</span>
{<span class="hljs-number">1.23456</span>:<span class="hljs-number">10.3</span>f} <span class="hljs-comment"># ' 1.235'</span>
{<span class="hljs-number">1.23456</span>:<span class="hljs-number">10.3</span>e} <span class="hljs-comment"># ' 1.235e+00'</span>
{<span class="hljs-number">1.23456</span>:<span class="hljs-number">10.3</span>%} <span class="hljs-comment"># ' 123.456%'</span>
</code></pre>
<h4 id="inttypes">Int types:</h4>
<pre><code class="text language-text">+---------------+--------------+---------------+---------------+---------------+
| | {&lt;float&gt;:.2} | {&lt;float&gt;:.2f} | {&lt;float&gt;:.2e} | {&lt;float&gt;:.2%} |
+---------------+--------------+---------------+---------------+---------------+
| 0.00056789 | '0.00057' | '0.00' | '5.68e-04' | '0.06%' |
| 0.0056789 | '0.0057' | '0.01' | '5.68e-03' | '0.57%' |
| 0.056789 | '0.057' | '0.06' | '5.68e-02' | '5.68%' |
| 0.56789 | '0.57' | '0.57' | '5.68e-01' | '56.79%' |
| 5.6789 | '5.7' | '5.68' | '5.68e+00' | '567.89%' |
| 56.789 | '5.7e+01' | '56.79' | '5.68e+01' | '5678.90%' |
| 567.89 | '5.7e+02' | '567.89' | '5.68e+02' | '56789.00%' |
| 5678.9 | '5.7e+03' | '5678.90' | '5.68e+03' | '567890.00%' |
+---------------+--------------+---------------+---------------+---------------+
</code></pre>
<h3 id="ints">Ints</h3>
<pre><code class="python language-python hljs">{<span class="hljs-number">90</span>:c} <span class="hljs-comment"># 'Z'</span>
{<span class="hljs-number">90</span>:X} <span class="hljs-comment"># '5A'</span>
{<span class="hljs-number">90</span>:b} <span class="hljs-comment"># '1011010'</span>

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