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Fun and games with hashing in Python", "url": "https://lernerpython.com/2015/04/03/is-it-hashable-fun-and-games-with-hashing-in-python/", "published_at": "2015-04-03T10:19:28+00:00" }, { "id": "01a0bc13-fe4b-70b7-94d1-2d170de9c681", "title": "Free Webinar in object-oriented Python on April 1st, 2015", "url": "https://lernerpython.com/2015/03/25/free-webinar-in-object-oriented-python-on-april-1st-2015/", "published_at": "2015-03-25T10:53:55+00:00" }, { "id": "01a0bc13-fe4b-70b7-94d1-2d170ee1a1f0", "title": "How not to write an error message", "url": "https://lernerpython.com/2015/02/11/not-write-error-message/", "published_at": "2015-02-11T13:06:47+00:00" }, { "id": "01a0bc13-fe4b-70b7-94d1-2d170f4e6c84", "title": "A quick introduction to implementing Python iterators", "url": "https://lernerpython.com/2015/01/30/quick-introduction-implementing-python-iterators/", "published_at": "2015-01-30T12:00:48+00:00" }, { "id": "01a0bc13-fe4b-70b7-94d1-2d170f8aae3b", "title": "If you don’t use “with”, when does Python close files? The answer is: It depends.", "url": "https://lernerpython.com/2015/01/18/dont-use-python-close-files-answer-depends/", "published_at": "2015-01-18T20:27:38+00:00" }, { "id": "01a0bc13-fe4b-70b7-94d1-2d170f963f85", "title": "My latest side project: DailyTechVideo.com, posting new conference videos every day", "url": "https://lernerpython.com/2015/01/05/latest-side-project-dailytechvideo-com-posting-new-conference-videos-every-day/", "published_at": "2015-01-05T10:51:38+00:00" }, { "id": "01a0bc13-fe4b-70b7-94d1-2d17103ef212", "title": "All 50 exercises in “Practice Makes Python” are complete! (Plus, a sample exercise about taxes in Freedonia)", "url": "https://lernerpython.com/2014/11/13/50-exercises-practice-makes-python-complete-plus-sample-exercise-taxes-freedonia/", "published_at": "2014-11-13T14:05:29+00:00" }, { "id": "01a0bc16-5240-73ed-8e30-53d7d9568dee", "title": "“Practice Makes Python” is now available for early-bird purchase", "url": "https://lernerpython.com/2014/10/22/practice-makes-python-now-available-early-bird-purchase/", "published_at": "2014-10-22T05:42:10+00:00" }, { "id": "01a0bc16-5240-73ed-8e30-53d7d9d6962a", "title": "In Python, it’s all about the attributes", "url": "https://lernerpython.com/2014/10/14/python-attributes/", "published_at": "2014-10-13T22:37:10+00:00" }, { "id": "01a0bc16-5240-73ed-8e30-53d7da36f043", "title": "Announcing: A free Webinar, and two online courses (functional Python and OO Python)", "url": "https://lernerpython.com/2014/10/14/announcing-free-webinar-two-online-courses-functional-python-oo-python/", "published_at": "2014-10-13T22:26:46+00:00" }, { "id": "01a0bc16-5240-73ed-8e30-53d7da710ad0", "title": "Sorting lists of dicts — an exercise from “Practice Makes Python”", "url": "https://lernerpython.com/2014/10/12/sorting-lists-of-dicts-practice-makes-python/", "published_at": "2014-10-12T15:16:29+00:00" }, { "id": "01a0bc16-5240-73ed-8e30-53d7dacd4291", "title": "Thinking with “map”", "url": "https://lernerpython.com/2014/09/16/thinking-with-map/", "published_at": "2014-09-16T19:30:04+00:00" }, { "id": "01a0bc16-5240-73ed-8e30-53d7db0d8ad8", "title": "The relative speeds of str.format and %", "url": "https://lernerpython.com/2014/09/14/relative-speeds-str-format/", "published_at": "2014-09-13T23:45:41+00:00" }, { "id": "01a0bc16-5240-73ed-8e30-53d7dbe29e86", "title": "Teaching an old dog new tricks — or, how I learned to love Python’s str.format, and gave up on %", "url": "https://lernerpython.com/2014/09/12/teaching-old-dog-new-tricks-learned-love-str-format-gave/", "published_at": "2014-09-12T03:27:43+00:00" }, { "id": "01a0bc16-5240-73ed-8e30-53d7dbf4caf4", "title": "Three Pythonic products: A (free) Webinar, a course, and an ebook", "url": "https://lernerpython.com/2014/09/10/reuvens-news-blast-ebook-online-seminars/", "published_at": "2014-09-10T10:00:40+00:00" }, { "id": "01a0bc16-5240-73ed-8e30-53d7dc278d83", "title": "The easiest way to return to the last Git branch", "url": "https://lernerpython.com/2014/07/09/easiest-way-return-last-git-branch/", "published_at": "2014-07-09T07:12:59+00:00" }, { "id": "01a0bc16-5240-73ed-8e30-53d7dc2833ce", "title": "Remember: Don’t mix = and NULL", "url": "https://lernerpython.com/2014/05/28/dont-mix-equal-and-null/", "published_at": "2014-05-28T07:00:49+00:00" }, { "id": "01a0bc18-8dad-736e-9428-a63c081673a9", "title": "Book Review: The Undercover Economist Strikes Back", "url": "https://lernerpython.com/2014/05/27/book-review-undercover-economist-strikes-back/", "published_at": "2014-05-27T07:00:43+00:00" }, { "id": "01a0bc18-8dae-70a6-8916-7cf3daa2f143", "title": "Turning a PostgreSQL array to rows", "url": "https://lernerpython.com/2014/05/24/turning-postgresql-arrays-rows-unnest/", "published_at": "2014-05-24T12:00:53+00:00" }, { "id": "01a0bc18-8dae-70a6-8916-7cf3db9ddd26", "title": "Turning PostgreSQL rows into arrays", "url": "https://lernerpython.com/2014/05/23/turning-postgresql-rows-arrays-array/", "published_at": "2014-05-23T03:00:44+00:00" }, { "id": "01a0bc18-8dae-70a6-8916-7cf3dc3c3576", "title": "Looking in PostgreSQL arrays with ANY", "url": "https://lernerpython.com/2014/05/22/looking-postgresql-arrays/", "published_at": "2014-05-22T03:00:43+00:00" }, { "id": "01a0bc18-8dae-70a6-8916-7cf3dcef06e9", "title": "The real questions to ask offshore developers", "url": "https://lernerpython.com/2014/05/21/real-questions-ask-offshore-developers/", "published_at": "2014-05-21T03:00:32+00:00" }, { "id": "01a0bc18-8dae-70a6-8916-7cf3ddaf7b33", "title": "PostgreSQL array indexes and length", "url": "https://lernerpython.com/2014/05/20/postgresql-array-indexes-and-length/", "published_at": "2014-05-20T03:00:56+00:00" }, { "id": "01a0bc18-8dae-70a6-8916-7cf3ddd767cb", "title": "Learning to love PostgreSQL arrays", "url": "https://lernerpython.com/2014/05/19/learning-love-postgresql-arrays/", "published_at": "2014-05-19T03:00:53+00:00" }, { "id": "01a0bc18-8dae-70a6-8916-7cf3de072f67", "title": "Control-R, my favorite Unix shell command", "url": "https://lernerpython.com/2014/05/18/control-r-favorite-unix-shell-command/", "published_at": "2014-05-18T00:00:42+00:00" }, { "id": "01a0bc18-8dae-70a6-8916-7cf3de2236cb", "title": "Starting a new software project? Don’t start coding right away.", "url": "https://lernerpython.com/2014/05/16/starting-new-software-project/", "published_at": "2014-05-16T00:00:54+00:00" }, { "id": "01a0bc18-8dae-70a6-8916-7cf3de500ebd", "title": "Summary of my “reduce” series", "url": "https://lernerpython.com/2014/05/15/summary-reduce-series/", "published_at": "2014-05-15T00:00:16+00:00" }, { "id": "01a0bc1a-a657-721d-bd10-20f4c62438fb", "title": "Implementing “filter” with “reduce”, in Ruby and Python", "url": "https://lernerpython.com/2014/05/14/implementing-filter-reduce-ruby-python/", "published_at": "2014-05-14T00:00:30+00:00" }, { "id": "01a0bc1a-a657-721d-bd10-20f4c70d1230", "title": "Implementing “map” with “reduce”, in Ruby and Python", "url": "https://lernerpython.com/2014/05/13/implementing-map-reduce/", "published_at": "2014-05-13T00:00:26+00:00" }, { "id": "01a0bc1a-a657-721d-bd10-20f4c795491a", "title": "Creating Ruby hashes with “reduce”", "url": "https://lernerpython.com/2014/05/12/creating-ruby-hashes-reduce/", "published_at": "2014-05-12T00:00:18+00:00" }, { "id": "01a0bc1a-a657-721d-bd10-20f4c8161c71", "title": "Creating Python dictionaries with “reduce”", "url": "https://lernerpython.com/2014/05/11/creating-python-dictionaries-reduce/", "published_at": "2014-05-11T00:00:50+00:00" } ] posts Claim your blog

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LernerPython blog, from Reuven Lerner

lernerpython.com

2018

Last chance: Weekly Python Exercise registration closes soon original ↗

17 Sept 2018

Weekly Python Exercise: Registration closes in two days original ↗

16 Sept 2018

Announcing: Weekly Python Exercise, Autumn 2018 cohort original ↗

9 Sept 2018

Avoiding Windows backslash problems with Python’s raw strings original ↗

24 Jul 2018

A quick intro to the Unix “find” utility original ↗

23 Jul 2018

Python parentheses primer original ↗

8 Jun 2018

20% off all books + courses during PyCon original ↗

11 May 2018

PyCon!original ↗

7 May 2018

Master Python objects (and understand how they work)original ↗

4 May 2018

Freelancers Show #300 — live!original ↗

4 May 2018

Announcing my new Python course, “Comprehending Comprehensions”original ↗

19 Apr 2018

My new course, “Understanding and Mastering Git,” is now available original ↗

29 Mar 2018

Four ways to assign variables in Python original ↗

20 Mar 2018

Using Python to delete files based on other files’ names original ↗

10 Jan 2018

2017

Less content + more exercises = better learning + more satisfaction. That’s Weekly Python Exercise.original ↗

18 Dec 2017

Registration closes soon for Weekly Python Exercise original ↗

16 Dec 2017

Focus on the process: Your Python questions, answered original ↗

13 Dec 2017

Registration is open for the January 2018 cohort of “Weekly Python Exercise”original ↗

6 Dec 2017

A very sad day — the end of Linux Journal original ↗

1 Dec 2017

Black Friday sale: 40% off my Python and Git books and courses original ↗

24 Nov 2017

Aha! Preview this week’s live, online Python courses original ↗

23 Oct 2017

Announcing: Three new live courses, to level up your Python and Git skills original ↗

9 Oct 2017

Level up your Python, with three new courses original ↗

6 Oct 2017

My favorite terrible Python error message original ↗

18 Sept 2017

foo(y=y), and similar code that confuses Python newbies original ↗

7 Aug 2017

Where can you practice (and improve) your Python skills?original ↗

31 Jul 2017

Globbing and Python’s “subprocess” module original ↗

20 Jul 2017

Five Python function parameters you should know and use original ↗

16 Jul 2017

One-day birthday sale — on July 14th, get 47% off my courses, books, and subscriptions original ↗

13 Jul 2017

Announcing: Three live Python courses original ↗

12 Jul 2017

Raw strings to the rescue!original ↗

5 Jul 2017

Announcing: Weekly Python Exercise original ↗

12 Jun 2017

Boolean indexing in NumPy and Pandas: A free e-mail course for aspiring data scientists original ↗

10 Apr 2017

2+2 might be 4, but what is True+True?original ↗

8 Mar 2017

Python function brain transplants original ↗

2 Feb 2017

The five-minute guide to setting up a Jupyter notebook server original ↗

1 Feb 2017

A short Python class puzzle original ↗

30 Jan 2017

Data science + machine learning + Python course in Shanghai original ↗

23 Jan 2017

Announcing: Trainer Weekly, practical advice for technical trainers original ↗

9 Jan 2017

Free download: Cheat sheet for Python data structures original ↗

9 Jan 2017

2016

The (lack of a) case against Python 3 original ↗

28 Nov 2016

Why you should read “Weapons of Math Destruction”original ↗

14 Sept 2016

Implementing “zip” with list comprehensions original ↗

30 Aug 2016

Fun with floats original ↗

24 Aug 2016

Announcing: An online community for technical trainers original ↗

16 Aug 2016

Speedy string concatenation in Python original ↗

12 Aug 2016

Want to learn Chinese?original ↗

11 May 2016

Another free regexp Q&A webinar!original ↗

4 Apr 2016

Free Webinar: Regexp Q&A original ↗

14 Mar 2016

Yes, you can master regular expressions!original ↗

4 Mar 2016

Using regexps in PostgreSQL original ↗

1 Mar 2016

All 50 “Practice Makes Python” screencasts are complete!original ↗

11 Feb 2016

Free Webinar: Pandas and Matplotlib original ↗

3 Feb 2016

My interview with the Freelance Transformation podcast original ↗

1 Feb 2016

2015

Reminder: Free Webinar on data science in Python original ↗

7 Dec 2015

Free Webinar: Data science with Python on December 8th original ↗

29 Nov 2015

Shark Tank increased our traffic by 1000x. Here’s how we handled it.original ↗

22 Nov 2015

Updated ebook: Jewish Guide to Visiting China original ↗

7 Nov 2015

Python’s objects and classes — a visual guide original ↗

17 Oct 2015

Registration is open for my October Webinars (about regexps and technical training)original ↗

23 Sept 2015

Now available: My interview on “Developer on Fire” about training programmers original ↗

18 Sept 2015

In PostgreSQL, as in life, don’t wait too long to commit original ↗

16 Sept 2015

Announcing: Coaching for technical trainers original ↗

16 Sept 2015

Understanding nested list comprehensions in Python original ↗

23 Jul 2015

Want to understand Python’s comprehensions? Think in Excel or SQL.original ↗

16 Jul 2015

Why you should almost never use “is” in Python original ↗

16 Jun 2015

Free Webinar on June 23rd: Introduction to Regular Expressions original ↗

15 Jun 2015

New ebook: Jewish guide to visiting China original ↗

7 Jun 2015

Free one-hour Webinar about Python’s magic methods on May 6th original ↗

27 Apr 2015

Is it hashable? Fun and games with hashing in Python original ↗

3 Apr 2015

Free Webinar in object-oriented Python on April 1st, 2015 original ↗

25 Mar 2015

How not to write an error message original ↗

11 Feb 2015

A quick introduction to implementing Python iterators original ↗

30 Jan 2015

If you don’t use “with”, when does Python close files? The answer is: It depends.original ↗

18 Jan 2015

My latest side project: DailyTechVideo.com, posting new conference videos every day original ↗

5 Jan 2015

2014

All 50 exercises in “Practice Makes Python” are complete! (Plus, a sample exercise about taxes in Freedonia)original ↗

13 Nov 2014

“Practice Makes Python” is now available for early-bird purchase original ↗

22 Oct 2014

In Python, it’s all about the attributes original ↗

13 Oct 2014

Announcing: A free Webinar, and two online courses (functional Python and OO Python)original ↗

13 Oct 2014

Sorting lists of dicts — an exercise from “Practice Makes Python”original ↗

12 Oct 2014

Thinking with “map”original ↗

16 Sept 2014

The relative speeds of str.format and %original ↗

13 Sept 2014

Teaching an old dog new tricks — or, how I learned to love Python’s str.format, and gave up on %original ↗

12 Sept 2014

Three Pythonic products: A (free) Webinar, a course, and an ebook original ↗

10 Sept 2014

The easiest way to return to the last Git branch original ↗

9 Jul 2014

Remember: Don’t mix = and NULL original ↗

28 May 2014

Book Review: The Undercover Economist Strikes Back original ↗

27 May 2014

Turning a PostgreSQL array to rows original ↗

24 May 2014

Turning PostgreSQL rows into arrays original ↗

23 May 2014

Looking in PostgreSQL arrays with ANY original ↗

22 May 2014

The real questions to ask offshore developers original ↗

21 May 2014

PostgreSQL array indexes and length original ↗

20 May 2014

Learning to love PostgreSQL arrays original ↗

19 May 2014

Control-R, my favorite Unix shell command original ↗

18 May 2014

Starting a new software project? Don’t start coding right away.original ↗

16 May 2014

Summary of my “reduce” series original ↗

15 May 2014

Implementing “filter” with “reduce”, in Ruby and Python original ↗

14 May 2014

Implementing “map” with “reduce”, in Ruby and Python original ↗

13 May 2014

Creating Ruby hashes with “reduce”original ↗

12 May 2014

Creating Python dictionaries with “reduce”original ↗

11 May 2014