The latest articles on DEV Community by Sebastian Kalisz (@skalisz). https://dev.to/skalisz https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3551635%2F2dd5c409-37dc-4aad-a050-a9304748b7ce.png https://dev.to/skalisz en Sebastian Kalisz Tue, 21 Oct 2025 11:57:15 +0000 https://dev.to/momentumai/project-templates-in-python-4m56 https://dev.to/momentumai/project-templates-in-python-4m56 <p>Have you ever struggled to know where to start with a programming project? This can lead to many questions...</p> <ul> <li>How to divide code between modules?</li> <li>What is the best way to name files?</li> <li>How can redundancy be avoided?</li> </ul> <p>... and many more. One way to master this chaos is to prepare suitable templates.</p> <p>You can read entire article <a href="https://www.linkedin.com/pulse/projects-templates-python-sebastian-kalisz-isrrf/" rel="noopener noreferrer">[HERE]</a>!</p> programming python ai mcp Sebastian Kalisz Mon, 13 Oct 2025 11:23:22 +0000 https://dev.to/momentumai/mastering-sqlalchemy-declarative-models-314l https://dev.to/momentumai/mastering-sqlalchemy-declarative-models-314l <p>Have you even wondered how to build ORM models like a pro? In my latest article you can read about:</p> <ul> <li>how to create custom mapping for python and sql data types</li> <li>how to use generic Annotated types to simplify syntax for columns properties</li> <li>how to make use of metaclasses to achieve better relationships</li> </ul> <p>You can read entire article here <a href="https://www.linkedin.com/pulse/mastering-sqlalchemy-declarative-models-sebastian-kalisz-ivfff/" rel="noopener noreferrer">[HERE]</a>!</p> programming python sqlalchemy sql Sebastian Kalisz Tue, 07 Oct 2025 15:42:51 +0000 https://dev.to/momentumai/python-314-whats-new-248n https://dev.to/momentumai/python-314-whats-new-248n <p>October is here, which means it’s time for the yearly Python release. At last, π edition (Python 3.14) arrives with new features, like deferred evaluation of annotations or template strings. Here’s my breakdown of the key changes that will be included.</p> <p>What is highlighted?</p> <ul> <li>deferred evaluation of type annotations</li> <li>template strings</li> <li>built-in support for free-threaded (no-GIL) Python</li> <li>except expressions without parentheses</li> <li>syntax highlighting in REPL</li> </ul> <p>You can read entire article <a href="https://www.linkedin.com/pulse/python-314-whats-new-sebastian-kalisz-meo9f/" rel="noopener noreferrer">[HERE]</a>! Checkout an example of what's inside -&gt; example of how new t-strings works in comparison to the old f-string:</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fu72xo070cjq8n5xt3fup.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fu72xo070cjq8n5xt3fup.png" alt="f-string vs t-string" width="800" height="627"></a></p> python programming