New breaking changes were just introduced in Python.

The default behavior of how int to string and string to int conversions work has been changed, with a limit being set on the number of allowed digits, with the default limit now being 4300. The old behavior can be configured using a new sys call, but why was this change introduced in the first place? In this video, we go over the change, the underlying algorithmic and security reasons it was added, and present different viewpoints of community members both in favor of and against the changes.

― mCoding with James Murphy (https://mcoding.io)

Voice your opinion: https://discuss.python.org/t/int-str-conversions-broken-in-latest-python-bugfix-releases/18889

Source code: https://github.com/mCodingLLC/VideosSampleCode
Conversion limit docs: https://docs.python.org/3/library/stdtypes.html#int-max-str-digits
Conversion implementations: https://github.com/python/cpython/blob/main/Objects/longobject.c
CPython GitHub issue: https://github.com/python/cpython/issues/95778
Work on faster algorithms: https://github.com/python/cpython/issues/90716
Mitre CVE page: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10735
RedHat initial CVE report: https://bugzilla.redhat.com/show_bug.cgi?id=1834423
RedHat CVE "public on": https://access.redhat.com/security/cve/CVE-2020-10735

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str/int: Controversial breaking change added to Python

Python has lot of useful format strings.

f-strings in Python are not just a way to easily substitute variables inside strings, they come with a wide array of conversion, formatting, and debugging options which we give examples of in this video.

Note: I'm trying a more informal style in this video so make sure to let me know if you like it better this way, as opposed to my usual cut-after-every-sentence editing.

― mCoding with James Murphy (https://mcoding.io)

Source code: https://github.com/mCodingLLC/VideosSampleCode
f-string docs: https://docs.python.org/3/reference/lexical_analysis.html#f-strings

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John M, Laura M, Pieter G, Vahnekie, Sigmanificient

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Python f-strings can do more than you thought. f'{val=}', f'{val!r}', f'{dt:%Y-%m-%d}'

My take on the most important new feature in Python 3.10.

It's the match statement and structural pattern matching.

― mCoding with James Murphy (https://mcoding.io)

Source code: https://github.com/mCodingLLC/VideosSampleCode
PEP-634:  https://www.python.org/dev/peps/pep-0634/

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The Hottest New Feature Coming In Python 3.10 - Structural Pattern Matching / Match Statement

If you thought x+=y means x=x+y you'd be wrong!

Python's plus equals augmented assignment syntax is more complex than many people realize. Let's take a look.

(Sorry for the dark purple again! I've changed it in my ide to pink for the future!)

― mCoding with James Murphy (https://mcoding.io)

Source code: https://github.com/mCodingLLC/VideosSampleCode
Docs for iadd: https://docs.python.org/3/reference/datamodel.html#object.__iadd__

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Python's sharpest corner is ... plus equals? (+=)

Python is arguably the world's most popular programming language. It is easy to learn, yet suitable in professional software like web applications, data science, and server-side scripts. https://fireship.io/tags/python/

#python #programming #100SecondsOfCode

🔗 Resources

Python Docs https://docs.python.org/3/
Python TIOBE Ranking https://www.infoworld.com/article/3636789/python-tops-tiobe-language-index.html

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Python in 100 Seconds

If you want to become an expert in Python, you should definitely watch this PyData talk from James Powell.

EVENT: PyData, 2017

SPEAKER: James Powell

PERMISSIONS: Coding Tech received permissions from the Organizer to republish this video. 

ORIGINAL SOURCE: https://www.youtube.com/watch?v=cKPlPJyQrt4


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What Does It Take To Be An Expert At Python?

In this talk, we will explore how the Python's openpyxl module allows your Python programs to read and modify Excel spreadsheet files. By using Python, you can take your Excel and data manipulation skills to the whole new level.

PERMISSIONS / ATTRIBUTIONS:
The original video was published on Six Feet Up Corp YouTube channel with the Creative Commons Attribution license (reuse allowed). Original video source: https://www.youtube.com/watch?v=ueq1iTWQU5U

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Become an Excel Wizard With Python

Architectural considerations are often overlooked by developers or completely delegated to a framework. We should start once again discussing how applications are structured, how components are connected and how to lower coupling between different parts of a system, to avoid creating software that cannot easily be maintained or changed. The ""clean architecture"" model predates Robert Martin, who recently brought it back to the attention of the community, and is a way of structuring applications that leverages layers separation and internal APIs to achieve a very tidy, fully-tested, and loosely coupled system.

The talk introduces the main ideas of the architecture, showing how the layers can be implemented in Python, following the content of the book ""Clean Architectures in Python"" edited by Leanpub. The book recently reached 25,000 downloads and many readers found it useful to start learning how to test software and how to structure an application without relying entirely on the framework.

PUBLICATION PERMISSIONS:
Original video was published with the Creative Commons Attribution license (reuse allowed). Link: https://www.youtube.com/watch?v=C7MRkqP5NRI