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authoryum <yum.food.vr@gmail.com>2023-01-01 21:05:27 -0800
committeryum <yum.food.vr@gmail.com>2023-01-01 21:44:45 -0800
commite25bdba3a3a53b09be5269d8b065c13b73ab55c3 (patch)
tree1d1dc1d94cde92c2f4f8ce86017395054787515d /Python/Dependencies/future-0.18.2/docs/why_python3.rst
parent0d408cc812a094a708edbe4baf536e928731cfc3 (diff)
Embed git in package
package.ps1 fetches PortableGit and embeds it in the package. This eliminates all but one runtime dependency (MSVC++ Redistributable). * Move Python into a new FOSS folder.
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-.. _why-python3:
-
-Why Python 3?
-=============
-
-- Python 2.7 is the final Python 2.x release. Python 3.x is the future.
- The Python ecosystem needs to consolidate. A split or schism between
- different incompatible versions is not healthy for growing the
- community.
-- Function annotations
-- Decimal module 100x faster. As fast as floats.
-- Easier to learn. (Less cruft in language and stdlib, more consistency, better docstrings, etc.)
-- Much safer handling of unicode text and encodings: fewer bugs.
-- More memory efficiency (shared dict keys (PEP 412) and space-efficient
- Unicode representation (PEP 393))
-- Exception chaining
-
-Why are Unicode strings better on Python 3?
--------------------------------------------
-
-- it is not the default string type (you have to prefix the string
- with a u to get Unicode);
-
-- it is missing some functionality, e.g. casefold;
-
-- there are two distinct implementations, narrow builds and wide builds;
-
-- wide builds take up to four times more memory per string as needed;
-
-- narrow builds take up to two times more memory per string as needed;
-
-- worse, narrow builds have very naive (possibly even "broken")
- handling of code points in the Supplementary Multilingual Planes.
-
-The unicode string type in Python 3 is better because:
-
-- it is the default string type;
-
-- it includes more functionality;
-
-- starting in Python 3.3, it gets rid of the distinction between
- narrow and wide builds;
-
-- which reduces the memory overhead of strings by up to a factor
- of four in many cases;
-
-- and fixes the issue of SMP code points.
-
-(quote from a mailing list post by Steve D'Aprano on 2014-01-17).
-
-
-New features
-------------
-
-Standard library:
-~~~~~~~~~~~~~~~~~
-
-- SSL contexts in http.client
--
-
-
-
-Non-arguments for Python 3
-==========================
-
--