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python-cheatsheet
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Struct

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Jure Šorn 2 years ago
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  1. 6
      README.md
  2. 10
      index.html

6
README.md
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@ -1776,7 +1776,7 @@ def write_to_json_file(filename, an_object):
Pickle
------
**Binary file format for storing objects.**
**Binary file format for storing Python objects.**
```python
import pickle
@ -1976,7 +1976,7 @@ def write_bytes(filename, bytes_obj):
Struct
------
* **Module that performs conversions between a sequence of numbers and a bytes object.**
* **System’s type sizes and byte order are used by default.**
* **System’s type sizes, byte order, and alignment rules are used by default.**
```python
from struct import pack, unpack, iter_unpack
@ -1997,7 +1997,7 @@ b'\x00\x01\x00\x02\x00\x00\x00\x03'
```
### Format
#### For standard type sizes start format string with:
#### For standard type sizes and manual alignment (padding) start format string with:
* **`'='` - system's byte order (usually little-endian)**
* **`'<'` - little-endian**
* **`'>'` - big-endian (also `'!'`)**

10
index.html
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@ -54,7 +54,7 @@
<body>
<header>
<aside>June 3, 2022</aside>
<aside>June 6, 2022</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</header>
@ -1486,7 +1486,7 @@ CompletedProcess(args=[<span class="hljs-string">'bc'</span>, <span class="hljs-
json.dump(an_object, file, ensure_ascii=<span class="hljs-keyword">False</span>, indent=<span class="hljs-number">2</span>)
</code></pre></div>
<div><h2 id="pickle"><a href="#pickle" name="pickle">#</a>Pickle</h2><p><strong>Binary file format for storing objects.</strong></p><pre><code class="python language-python hljs"><span class="hljs-keyword">import</span> pickle
<div><h2 id="pickle"><a href="#pickle" name="pickle">#</a>Pickle</h2><p><strong>Binary file format for storing Python objects.</strong></p><pre><code class="python language-python hljs"><span class="hljs-keyword">import</span> pickle
&lt;bytes&gt; = pickle.dumps(&lt;object&gt;)
&lt;object&gt; = pickle.loads(&lt;bytes&gt;)
</code></pre></div>
@ -1640,7 +1640,7 @@ CompletedProcess(args=[<span class="hljs-string">'bc'</span>, <span class="hljs-
<div><h2 id="struct"><a href="#struct" name="struct">#</a>Struct</h2><ul>
<li><strong>Module that performs conversions between a sequence of numbers and a bytes object.</strong></li>
<li><strong>System’s type sizes and byte order are used by default.</strong></li>
<li><strong>System’s type sizes, byte order, and alignment rules are used by default.</strong></li>
</ul><pre><code class="python language-python hljs"><span class="hljs-keyword">from</span> struct <span class="hljs-keyword">import</span> pack, unpack, iter_unpack
</code></pre></div>
@ -1655,7 +1655,7 @@ CompletedProcess(args=[<span class="hljs-string">'bc'</span>, <span class="hljs-
(<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>)
</code></pre></div>
<div><h3 id="format-2">Format</h3><div><h4 id="forstandardtypesizesstartformatstringwith">For standard type sizes start format string with:</h4><ul>
<div><h3 id="format-2">Format</h3><div><h4 id="forstandardtypesizesandmanualalignmentpaddingstartformatstringwith">For standard type sizes and manual alignment (padding) start format string with:</h4><ul>
<li><strong><code class="python hljs"><span class="hljs-string">'='</span></code> - system's byte order (usually little-endian)</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'&lt;'</span></code> - little-endian</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'&gt;'</span></code> - big-endian (also <code class="python hljs"><span class="hljs-string">'!'</span></code>)</strong></li>
@ -2897,7 +2897,7 @@ $ pyinstaller script.py --add-data '&lt;path&gt;:.' <span class="hljs-comment">
<footer>
<aside>June 3, 2022</aside>
<aside>June 6, 2022</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</footer>

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