125 lines
4.4 KiB
HTML
125 lines
4.4 KiB
HTML
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<meta content="width=device-width, initial-scale=1" name="viewport">
|
|
<meta content="upgrade-insecure-requests" http-equiv="Content-Security-Policy">
|
|
<title>Python Versions Presentation</title>
|
|
<style>
|
|
body {
|
|
background-color: #fff;
|
|
font-family: Arial, sans-serif;
|
|
color: #000;
|
|
margin: 0;
|
|
padding: 0;
|
|
}
|
|
.step {
|
|
width: 600px;
|
|
border-radius: 10px;
|
|
padding: 40px;
|
|
color: #333;
|
|
text-align: center;
|
|
opacity: 10%;
|
|
transition: opacity 1s;
|
|
}
|
|
.step img {
|
|
opacity: 0;
|
|
transition: opacity 1s;
|
|
}
|
|
.active {
|
|
opacity: 100%;
|
|
transition: opacity 1s;
|
|
}
|
|
.active img {
|
|
opacity: 100%;
|
|
transition: opacity 1s;
|
|
}
|
|
h1 {
|
|
font-size: 2.5em;
|
|
text-shadow: 2px 2px 4px rgba(0, 0, 0, .3);
|
|
}
|
|
p {
|
|
font-size: 1.2em;
|
|
line-height: 1.4;
|
|
margin: 20px 0;
|
|
}
|
|
img {
|
|
width: 80%;
|
|
height: auto;
|
|
margin-top: 20px;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<div id="impress">
|
|
<div id="slide1" class="step" data-x="0" data-y="0">
|
|
<h1>Introduction to Python Versions</h1>
|
|
<p>Brief History of Python<br>
|
|
Python 2 release in 2000<br>
|
|
Python 3 release in 2008<br>
|
|
Key differences aim to make Python more powerful and easier to use</p>
|
|
</div>
|
|
<div id="slide2" class="step" data-x="1000" data-y="-500">
|
|
<h1>Syntax Differences</h1>
|
|
<p>Print function<br>
|
|
Python 2: <code>print "Hello, world!"</code><br>
|
|
Python 3: <code>print("Hello, world!")</code><br>
|
|
Integer division<br>
|
|
Python 2: <code>3/2 = 1</code><br>
|
|
Python 3: <code>3/2 = 1.5</code></p>
|
|
</div>
|
|
<div id="slide3" class="step" data-x="2000" data-y="-1000">
|
|
<h1>Unicode Support</h1>
|
|
<p>Python 2: Strings are ASCII by default. Unicode string with <code>u"unicode"</code><br>
|
|
Python 3: All strings are Unicode. Bytes type for ASCII text: <code>b"ascii"</code></p>
|
|
</div>
|
|
<div id="slide4" class="step" data-x="3000" data-y="-1500">
|
|
<h1>Library Changes</h1>
|
|
<p>Changes in standard library<br>
|
|
Python 2: <code>urllib</code>, <code>urllib2</code>, <code>httplib</code><br>
|
|
Python 3: Unified under <code>urllib</code> package<br>
|
|
Range function<br>
|
|
Python 2: <code>xrange()</code> for efficient looping<br>
|
|
Python 3: <code>range()</code> is now like <code>xrange()</code></p>
|
|
</div>
|
|
<div id="slide5" class="step" data-x="4000" data-y="-2000">
|
|
<h1>Error Handling</h1>
|
|
<p>Syntax for exception handling<br>
|
|
Python 2: <code>except IOError, e:</code><br>
|
|
Python 3: <code>except IOError as e:</code></p>
|
|
</div>
|
|
<div id="slide6" class="step" data-x="5000" data-y="-2500">
|
|
<h1>Iterators and Generators</h1>
|
|
<p>Enhancements in iteration<br>
|
|
Python 3 introduces new behavior for dict methods <code>.keys()</code>, <code>.items()</code>, and <code>.values()</code> which return views instead of lists</p>
|
|
</div>
|
|
<div id="slide7" class="step" data-x="6000" data-y="-3000">
|
|
<h1>End of Life</h1>
|
|
<p>Python 2 end of life in 2020<br>
|
|
No more official support or updates<br>
|
|
Encouragement to migrate to Python 3 for security and latest features</p>
|
|
</div>
|
|
<div id="slide8" class="step" data-x="7000" data-y="-3500">
|
|
<h1>Migrating from Python 2 to Python 3</h1>
|
|
<p>Tools like <code>2to3</code> can help in converting Python 2 code to Python 3<br>
|
|
Considerations for maintaining compatibility<br>
|
|
Importance of testing during migration</p>
|
|
</div>
|
|
<div id="slide9" class="step" data-x="8000" data-y="-4000">
|
|
<h1>Conclusion</h1>
|
|
<p>Python 3 offers significant improvements and is the future of Python<br>
|
|
Transitioning to Python 3 is essential for access to new features and continued support</p>
|
|
</div>
|
|
<div id="slide10" class="step" data-x="9000" data-y="-4500">
|
|
<h1>Resources</h1>
|
|
<p>Official Python documentation</p>
|
|
</div>
|
|
</div>
|
|
<script src="https://impress.github.io/impress.js/js/impress.js"></script>
|
|
<script>
|
|
impress().init();
|
|
</script>
|
|
</body>
|
|
</html>
|
|
|