
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
For Your Every Summer RSVP, with Code: SUMMER15
Description
Functional Programming In PythonPython is not a functional programming language, but it is a multi paradigm language that makes functional programming easy to perform, and easy to mix with other programming styles. In this paper, David Mertz, a director of Python Software Foundation, examines the functional aspects of the language and points out which options work well and which ones you should generally decline. Mertz describes ways to avoid Pythons imperative style flow control,
Python is not a functional programming language, but it is a multi-paradigm language that makes functional programming easy to perform, and easy to mix with other programming styles. In this paper, David Mertz, a director of Python Software Foundation, examines the functional aspects of the language and points out which options work well and which ones you should generally decline.Mertz describes ways to avoid Python’s imperative-style flow control, the nuances of callable functions, how to work lazily with iterators, and the use of higher-order functions. He also lists several third-party Python libraries useful for functional programming.'-webkit-tap-highlight-color: transparent; color: rgb(102, 102, 102); font-family: "Open Sans"; font-size: 13px; margin-top: 0px; margin-bottom: 0px; padding: 6px 0px; background-color: rgb(255, 255, 255);'Topics include: Using encapsulation and other means to describe “what” a data collection consists of, rather than “how” to construct a data collection Creating callables with named functions, lambdas, closures, methods of classes, and multiple dispatch Using Python’s iterator protocol to accomplish the same effect as a lazy data structure Creating higher-order functions that take functions as arguments and/or produce a function as a result. David Mertz is a director of the PSF,and chair of its Trademarks Committee and Outreach & Education Committee. He wrote the columns Charming Python and XML Matters for IBM developerWorks and the Addison-Wesley book Text Processing in Python, has spoken at multiple OSCONs and PyCons, and was invited to be a keynote speaker at PyCon India, PyCon UK, PyCon ZA, and PyCon Belaru.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 1516 reviews
Sort
Product Reviews
★★★★★ 3
Dog chew
Size: 1 Count (Pack of 6)
Good quality and price dog likes it hut watch for choking
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
★★★★★ 5
Bouncy, not hard, and good value.
Style: Fetch Balls (Pack of 10), Size: 2.5 inch
Great balls for the ball launcher and not rockhard like some of the solid rubber balls. These have great bounce, and because of the two holes, they make a fun whistling noise as they fly through the air. My dogs love them and they are a good value.
By the way, if you throw them too hard, they will go through chain-link and no climb fence because they squish a bit!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
★★★★★ 5
Excellent dog balls — safe design and very durable
Style: Fetch Balls (Pack of 3), Size: 2.5 inch
These fetch balls from Amazon Basics are fantastic, and my dog absolutely loves them. One of the biggest reasons I prefer these over other brands is the hole that runs through the center of the ball. This is a very important safety feature: if a dog were to accidentally get the ball stuck in the back of the throat, the hole allows air to pass through. That small detail could literally make a life-saving difference.
Aside from the safety benefit, they bounce well, are easy to clean, and hold up to a lot of playtime. They’re firm but not rock-hard, and my dog goes crazy for them. Great value, great quality, and a thoughtful design.
Highly recommended for dog owners who want a safer alternative to standard solid rubber balls.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
★★★★★ 5
Great ball for heavy chewers
Style: Assorted Balls (Pack of 3), Size: 2.5 inch
Great toy for my Doberman. She chews through tennis balls in about 15 minutes but these are very durable. She likes to chase them but also just chew on them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
Durable
Style: Fetch Balls (Pack of 2), Size: 3 inch
Very bouncy. I like the noise it makes when you throw it. Pretty durable. Good size. Dog loves to play with them. Good material. Easy to use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
recommand products
P. Graham Dunn "You Me And The Dogs" Pet Mat
12.99
DP61617 - Zestaw klocków hamulcowych seria GREENSTUFF EBC Brakes FORD | Explorer (USA) | CHEVROLET | Equinox | FORD | Explorer |
95.96
Hatco Toast-Qwik Countertop Horizontal Conveyor Toaster, 3-Inch Opening, 208 Volts
1255.92
Crathco CR 2502 Double-Flavor Countertop Frozen Beverage Machine, Air-Cooled, Self-Contained, 115V
4007.47
Hatco Flav-R 2-Go Built-In Pass-Through Pizza Locker System, 8 Lockers, 77-7/8 Inch Wide, 120V
11139.42