Name: Making Python faster, and "Dependency Inversion"
Start: 2023-12-06T18:15:00+13:00
End: 2023-12-06T20:30:00+13:00

**Two speakers** aiming to improve our **Python development habits**. NB *virtual-only meeting* due to lack of support for in-person component.

**1 Making Python faster** \- using type hints

*Tushar* will lead us through:

* A brief history of **type hints**
* Using **type checkers** to verify your type hints
* **Compiling** type checked Python to make it faster
* Some examples of libraries and the **speedups** they get from type hints

We'll be looking at *mypy/mypyc*.

**Audience Level**: *intermediate*, ie understand Python constructs, functions, control flow, etc.

*Tushar* has been a long term Python developer, OSS contributor, author and speaker. He has been working with **static analysis** and **type checkers** for the past 3 years, and has contributed to various PSF-projects such as *black* and *mypy*.

**2 SOLID's Dependency Inversion Principle**

*Olaf* will complete the current **Software Craftsmanship** series on the SOLID Principles with a session on the **Dependency Inversion Principle**. This one is particularly fascinating, because at first-glance the *inversion* seems to be asking us to do things *backwards*. With understanding, we realise that it is an impressive device enabling us to focus on what is needed by the 'layer' of more valuable components, rather than the lower-level, eg UIs and external interfaces (need refresher? see [https://www.bmc.com/blogs/solid-design-principles/](https://www.bmc.com/blogs/solid-design-principles/))

**Audience Level**: *advanced*, ie understand programming constructs, patterns, principles, etc.

*Olaf* needs no introduction having generously brought us the earlier sessions in his "**Software Craftsmanship**" series over the last two years. Let's complete this exercise in dogged-persistence and round things off neatly - if you remember, this talk was originally scheduled last month, but technical-gremlins got in the way! Also, please tell us what topics you'd like to cover at this skill-level in future...

Please come, and come with a *collegial* frame-of-mind. Questions and **conversation** will be the order of the day. If you are more confident in Python, your constructive advice, suggestions, and alternate approaches will be **valued** ...

Please **RSVP** to be advised of the URL.

Regards =dn

Python New Zealand - Auckland

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Making Python faster, and "Dependency Inversion"

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Making Python faster, and "Dependency Inversion"

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