Mac/Unix¶ Install NLTK: run pip install-user-U nltk. Install Numpy (optional): run pip install-user-U numpy. Test installation: run python then type import nltk. For older versions of Python it might be necessary to install setuptools (see and to install. However, the issue is most modern macOS versions come with rather with Python 2.7.x installed and not the newer, modern version like Python 3.6.5 or Python 3.7.2 (which is the most up-to-date version right now). This short guide is written to show you how to properly install Python 3 on a Mac OS X computer. The Natural Language Toolkit (NLTK) is a Python package for natural language processing. NLTK requires Python 3.5, 3.6, 3.7, or 3.8. You can install NLTK over pip(pip install nltk).After it is installed, many components will not be present, and you will not be able to use some of NLTK's features. From your Python shell, run the function ntlk.downloadto select which additional packages you want to install using UI. Apple’s Mac OS comes with python 2.7 installed by default. Perhaps you may want to use python 3.x.x on your machine and also use pip for package management with python 3.x.x. The easiest way to achieve this is by: NOTE: This tutorial does not use Virtual Environments like virtualenv or pyenv to manage various python versions.

Python In Mac

Release Date: Oct. 5, 2020

This is the stable release of Python 3.9.0

Python 3.9.0 is the newest major release of the Python programming language, and it contains many new features and optimizations.

Installer news

This is the first version of Python to default to the 64-bit installer on Windows. The installer now also actively disallows installation on Windows 7. Python 3.9 is incompatible with this unsupported version of Windows.

Major new features of the 3.9 series, compared to 3.8

Some of the new major new features and changes in Python 3.9 are:

• PEP 573, Module State Access from C Extension Methods
• PEP 584, Union Operators in dict
• PEP 585, Type Hinting Generics In Standard Collections
• PEP 593, Flexible function and variable annotations
• PEP 602, Python adopts a stable annual release cadence
• PEP 614, Relaxing Grammar Restrictions On Decorators
• PEP 615, Support for the IANA Time Zone Database in the Standard Library
• PEP 616, String methods to remove prefixes and suffixes
• PEP 617, New PEG parser for CPython
• BPO 38379, garbage collection does not block on resurrected objects;
• BPO 38692, os.pidfd_open added that allows process management without races and signals;
• BPO 39926, Unicode support updated to version 13.0.0;
• BPO 1635741, when Python is initialized multiple times in the same process, it does not leak memory anymore;
• A number of Python builtins (range, tuple, set, frozenset, list, dict) are now sped up using PEP 590 vectorcall;
• A number of Python modules (_abc, audioop, _bz2, _codecs, _contextvars, _crypt, _functools, _json, _locale, operator, resource, time, _weakref) now use multiphase initialization as defined by PEP 489;
• A number of standard library modules (audioop, ast, grp, _hashlib, pwd, _posixsubprocess, random, select, struct, termios, zlib) are now using the stable ABI defined by PEP 384.

You can find a more comprehensive list in this release's 'What's New' document.

More resources

• PEP 596, 3.9 Release Schedule
• Report bugs at https://bugs.python.org.
• Help fund Python and its community.

And now for something completely different

Install Python 3.8 On Mac

Wapcaplet: (John Cleese) Welcome! Do sit down. My name's Wapcaplet, Adrian Wapcaplet.
Mr. Simpson: how'd'y'do.
Wapcaplet: Now, Mr. Simpson... Now, I understand you want us to advertise your washing powder.
S: String.
W: String, washing powder, what's the difference. We can sell anything.
S: Good. Well I have this large quantity of string, a hundred and twenty-two thousand miles of it to be exact, which I inherited, and I thought if I advertised it...
W: Of course! A national campaign. Useful stuff, string, no trouble there.
S: Ah, but there's a snag, you see. Due to bad planning, the hundred and twenty-two thousand miles is in three inch lengths. So it's not very useful.
W: Well, that's our selling point! 'SIMPSON'S INDIVIDUAL STRINGETTES!'
S: What?
W:'THE NOW STRING! READY CUT, EASY TO HANDLE, SIMPSON'S INDIVIDUAL EMPEROR STRINGETTES - JUST THE RIGHT LENGTH!'
S: For what?
W:'A MILLION HOUSEHOLD USES!'
S: Such as?
W: Uhmm...Tying up very small parcels, attatching notes to pigeons' legs, uh, destroying household pests...
S: Destroying household pests?! How?
W: Well, if they're bigger than a mouse, you can strangle them with it, and if they're smaller than, you flog them to death with it!
S: Well surely!....
W:'DESTROY NINETY-NINE PERCENT OF KNOWN HOUSEHOLD PESTS WITH PRE-SLICED, RUSTPROOF, EASY-TO-HANDLE, LOW CALORIE SIMPSON'S INDIVIDUAL EMPEROR STRINGETTES, FREE FROM ARTIFICIAL COLORING, AS USED IN HOSPITALS!'

Install Python 3 On Mac Using Terminal

Version	Operating System	Description	MD5 Sum	File Size	GPG
Gzipped source tarball	Source release	e19e75ec81dd04de27797bf3f9d918fd	26724009	SIG
XZ compressed source tarball	Source release	6ebfe157f6e88d9eabfbaf3fa92129f6	18866140	SIG
macOS 64-bit installer	Mac OS X	for OS X 10.9 and later	16ca86fa3467e75bade26b8a9703c27f	31132316	SIG
Windows help file	Windows	9ea6fc676f0fa3b95af3c5b3400120d6	8757017	SIG
Windows x86-64 embeddable zip file	Windows	for AMD64/EM64T/x64	60d0d94337ef657c2cca1d3d9a6dd94b	8387074	SIG
Windows x86-64 executable installer	Windows	for AMD64/EM64T/x64	b61a33dc28f13b561452f3089c87eb63	28158664	SIG
Windows x86-64 web-based installer	Windows	for AMD64/EM64T/x64	733df85afb160482c5636ca09b89c4c8	1364352	SIG
Windows x86 embeddable zip file	Windows	d81fc534080e10bb4172ad7ae3da5247	7553872	SIG
Windows x86 executable installer	Windows	4a2812db8ab9f2e522c96c7728cfcccb	27066912	SIG
Windows x86 web-based installer	Windows	cdbfa799e6760c13d06d0c2374110aa3	1327384	SIG