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57 of 57 people found the following review helpful:
5.0 out of 5 stars
An excellent, concise Python reference, March 7, 2000
Intending to familiarize myself with Python, I picked up a copy of O'Reilly's Programming Python a couple of years ago. After an initial attempt at going through the book, it has been on my book shelf since. It was simply not organized in a fashion that allowed me to quickly pick up the essentials of the language. As someone who was already familiar with C/C++ and Perl, but wanting to learn Python, the Python Essential Reference was exactly what I was looking for. Yes, most of the information contained in the book is available in the Python reference documents, but not collected in one place. In addition to adding examples from his own experience, David Beazley has done an excellent job in concisely summarizing the built-in features of the language as well as providing a nicely indexed library reference. While this book may not be immediately useful for someone looking specifically for a language tutorial, beginning or advanced Python programmers will get useful information from this book for much longer than most tutorial style books. Highly recommended.
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34 of 34 people found the following review helpful:
5.0 out of 5 stars
Excellent reference, February 18, 2000
By A Customer
Firstly, ignore the review by Mr. Leopold. Despite the fact that that book is not intended as an introduction to the Python language, and mind you, this is stated repeatedly within the foreward and introduction, he seems to insist on treating it as such. Further, he can't seem to decide if he's reviewing the language or the book... All in all, a very poorly written review. In any case, this is an excellent reference manual, suitable for Python hackers of all experience levels aside from complete newbie. As the sort that hates having a web browser open to sift through documentation, this reference is a godsend. The information presented is often terse, but quite clear. The first 86 pages are a handy reference for the language itself. Being fairly familiar with Python already, I only skimmed over this section, but it seemed nicely organized. The next big chunk of the book, the library reference, is nicely done as well. The modules are organized into sections based on general function (Math, OS Services). Each module name is listed in bold, and is followed by a quick list of platforms it is available on and a short description. After that, the authors rattle off the relevant details (classes, functions, variables, and so on) for each module. The classes and functions generally get the bold header with short paragraph description treatment. Everything else is typically listed in tables. This approach works surprisingly well, and though there are some cases where modules with large numbers of functions have them listed in a table, this is only done when it makes sense. A good example of this would be the math module, and its many (not surprisingly) math related functions such as sin, sqrt, and log. All this is often followed with short examples, as well as a notes section that I have found surprisingly useful. The debugger and profiler are listed towards the end of the library section, and he does go into a bit more detail on those. Still, like the rest of the book, the sections on the debugger and profiler are intended only as a reference. I seem to remember the web pages having a short but helpful tutorial on using pdb and the profiler. Beginning and intermediate Python programmers will probably want to get started there. He wraps up the book with a section on extending and embedding the language. This is not of particular interest to me, and I have only skimmed the section, but it seems to be fairly complete based on what (little) I know about the process. Finally, we have the index. It maintains the level of quality established earlier in the book; I have, thusfar, had no problems finding what I was looking for. The index clearly lists each entry as a function, method, module, and so on. Clocking in at over 40 pages, it certainly does not lack due to a short length either. If you want to learn Python, this isn't the book to do it with, though you'll certainly want to pick it up after you've gotten hold of the basics. If you've already got some experience with the language, I recommend it whole-heartedly.
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47 of 49 people found the following review helpful:
3.0 out of 5 stars
Review of 3rd edition, March 13, 2006
Good points:
* Much-improved readability
The font, layout, etc. are all much better than in previous editions.
* Lengthy coverage of important modules
Especially: optparse, logging, doctest, and unittest.
* Excellent tutorial for programmers
This (chapter 1) is the best I've seen -- very clear and succinct. Give it to anyone wanting to pick up Python fast.
* Has all the necessities.
Good index, good explanations of language usage, etc. All standard modules are at least mentioned, and all useful ones are covered.
Bad points:
* Reference section says very little that is not in the Web docs
The Nutshell book documents each function of a module with an explanation of how to use it and what to watch out for. It often provides a useful example. Beazley, on the other hand, has mostly restated the web docs, which are free.
* Lacks future feature coverage
Previous editions of this book stated the version of Python covered on the cover. This book covers 2.4, but you have to open it to find that out. That would be a minor point, except that it has absolutely nothing about what to expect in 2.5. The Nutshell, on the other hand, claims to cover only one version but actually reveals a great deal of what to expect in the next. Beazley could have at least mentioned relative imports, return-from-yield, and anything deprecated.
* Important points can be difficult to find
I had to look in several places before I finally learned what ellipsis is for in slicing.
Summary:
This book does not add much value beyond the web docs. However, if you need a hard-copy reference for Python2.4, this is your only option, and it's not a bad one. It's very well-organized and very easy to read.
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