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python-cheatsheet
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SQLite, Pygame

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Jure Šorn 2 days ago
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2 changed files with 10 additions and 10 deletions
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  1. 8
      README.md
  2. 12
      index.html

8
README.md
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@ -1907,8 +1907,8 @@ with <conn>: # Exits the block with commit() o
### Placeholders
```python
<conn>.execute('<query>', <list/tuple>) # Replaces '?'s in query with values.
<conn>.execute('<query>', <dict/namedtuple>) # Replaces ':<key>'s with values.
<conn>.execute('<query>', <list/tuple>) # Replaces every question mark with an item.
<conn>.execute('<query>', <dict/namedtuple>) # Replaces every :<key> with value.
<conn>.executemany('<query>', <coll_of_coll>) # Runs execute() multiple times.
```
* **Passed values can be of type str, int, float, bytes, None, or bool (stored as 1 or 0).**
@ -1931,7 +1931,7 @@ with <conn>: # Exits the block with commit() o
from sqlalchemy import create_engine, text
<engine> = create_engine('<url>') # Url: 'dialect://user:password@host/dbname'.
<conn> = <engine>.connect() # Creates a connection. Also <conn>.close().
<cursor> = <conn>.execute(text('<query>'), …) # `<dict>`. Replaces ':<key>'s with values.
<cursor> = <conn>.execute(text('<query>'), …) # `<dict>`. Replaces every :<key> with value.
with <conn>.begin(): ... # Exits the block with commit or rollback.
```
@ -3048,7 +3048,7 @@ rect(<Surf>, color, <Rect>, width=0) # Also polygon(<Surf>, color, po
```python
<Font> = pg.font.Font(<path/file>, size) # Loads TTF file. Pass None for default font.
<Surf> = <Font>.render(text, antialias, color) # Background color can be specified at the end.
<Surf> = <Font>.render(text, antialias, color) # Accepts background color as fourth argument.
```
### Sound

12
index.html
View File

@ -56,7 +56,7 @@
<body>
<header>
<aside>May 8, 2025</aside>
<aside>May 9, 2025</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</header>
@ -1591,8 +1591,8 @@ CompletedProcess(args=[<span class="hljs-string">'bc'</span>, <span class="hljs-
&lt;conn&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>) <span class="hljs-comment"># depending on whether any exception occurred.</span>
</code></pre></div>
<div><h3 id="placeholders">Placeholders</h3><pre><code class="python language-python hljs">&lt;conn&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;list/tuple&gt;) <span class="hljs-comment"># Replaces '?'s in query with values.</span>
&lt;conn&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;dict/namedtuple&gt;) <span class="hljs-comment"># Replaces ':&lt;key&gt;'s with values.</span>
<div><h3 id="placeholders">Placeholders</h3><pre><code class="python language-python hljs">&lt;conn&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;list/tuple&gt;) <span class="hljs-comment"># Replaces every question mark with an item.</span>
&lt;conn&gt;.execute(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;dict/namedtuple&gt;) <span class="hljs-comment"># Replaces every :&lt;key&gt; with value.</span>
&lt;conn&gt;.executemany(<span class="hljs-string">'&lt;query&gt;'</span>, &lt;coll_of_coll&gt;) <span class="hljs-comment"># Runs execute() multiple times.</span>
</code></pre></div>
@ -1612,7 +1612,7 @@ CompletedProcess(args=[<span class="hljs-string">'bc'</span>, <span class="hljs-
<span class="hljs-keyword">from</span> sqlalchemy <span class="hljs-keyword">import</span> create_engine, text
&lt;engine&gt; = create_engine(<span class="hljs-string">'&lt;url&gt;'</span>) <span class="hljs-comment"># Url: 'dialect://user:password@host/dbname'.</span>
&lt;conn&gt; = &lt;engine&gt;.connect() <span class="hljs-comment"># Creates a connection. Also &lt;conn&gt;.close().</span>
&lt;cursor&gt; = &lt;conn&gt;.execute(text(<span class="hljs-string">'&lt;query&gt;'</span>), …) <span class="hljs-comment"># `&lt;dict&gt;`. Replaces ':&lt;key&gt;'s with values.</span>
&lt;cursor&gt; = &lt;conn&gt;.execute(text(<span class="hljs-string">'&lt;query&gt;'</span>), …) <span class="hljs-comment"># `&lt;dict&gt;`. Replaces every :&lt;key&gt; with value.</span>
<span class="hljs-keyword">with</span> &lt;conn&gt;.begin(): ... <span class="hljs-comment"># Exits the block with commit or rollback.</span>
</code></pre></div>
@ -2496,7 +2496,7 @@ arc(&lt;Surf&gt;, color, &lt;Rect&gt;, from_rad, to_rad) <span class="hljs-co
rect(&lt;Surf&gt;, color, &lt;Rect&gt;, width=<span class="hljs-number">0</span>) <span class="hljs-comment"># Also polygon(&lt;Surf&gt;, color, points, width=0).</span>
</code></pre>
<pre><code class="python language-python hljs">&lt;Font&gt; = pg.font.Font(&lt;path/file&gt;, size) <span class="hljs-comment"># Loads TTF file. Pass None for default font.</span>
&lt;Surf&gt; = &lt;Font&gt;.render(text, antialias, color) <span class="hljs-comment"># Background color can be specified at the end.</span>
&lt;Surf&gt; = &lt;Font&gt;.render(text, antialias, color) <span class="hljs-comment"># Accepts background color as fourth argument.</span>
</code></pre>
<div><h3 id="sound">Sound</h3><pre><code class="python language-python hljs">&lt;Sound&gt; = pg.mixer.Sound(&lt;path/file/bytes&gt;) <span class="hljs-comment"># WAV file or bytes/array of signed shorts.</span>
&lt;Sound&gt;.play/stop() <span class="hljs-comment"># Also set_volume(&lt;float&gt;) and fadeout(msec).</span>
@ -2940,7 +2940,7 @@ $ deactivate <span class="hljs-comment"># Deactivates the active
<footer>
<aside>May 8, 2025</aside>
<aside>May 9, 2025</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</footer>

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