Monday, July 6, 2009
Saturday, July 4, 2009
Book Review: Hello, World!
I've finished my review of Hello, World! Computer Programming for Kids and Other Beginners from Manning and posted in on my blog.
Tuesday, June 16, 2009
Book Review: Python Web Development with Django
Disclaimer: I received a review copy of this book through the PyATL Book Club.
The stated goal of the book is "to help you get things done" (using Django for web development). As a relative beginner with 3 years of Python and coming on 1 year of using Django for web development, I figured that I would either be the perfect audience for the book or already too advanced to get much out of it (it's been a pretty obsessive year).
The book starts out with a nice introduction to Python. I thought that this was a great place to start because the Django documentation intentionally assumes knowledge of Python and the free online django book dives straight into the merits of web frameworks and the history of Django. So, already the book is setting itself apart a bit from the free online resources.
I remember feeling a sense of clarity while reading the introduction, a good compromise between trying to be comprehensive and terse at the same time. The intro does a good job of presenting what you really do need to know about Python and some common pitfalls. Interesting that nothing is said of the string.format() method which is somewhat unfortunate as the official python docs say:
But, alas, I (not to mention the official Django docs and probably 99% of Django devels) have always used % formatting and will probably continue to do so for the near future. I will be interested to see how Django and Python move forward. Actually, checkout the Django source itself:
Well, perhaps the authors are right in not mentioning the string.format method after all.
A small correction that I can't pass on mentioning here (being a math nerd): the book states that list.sort() sorts numeric values from smallest to largest. If I may present a list that I believe is ordered from smallest to largest: [1,2,3, -100000, -9999999999]. I spoke to Wesley Chun and he said that he would probably change to "the most-left on the number line to the most-right on the number line." I think that is about as good as it can be phrased without opening an analytical can of worms that could erupt and engulf us all! Coming back to earth after my self-satisfied, math-degree-induced intoxication, I learned a little about generators, the finally clause, raise and other aspects of the Python language that I have mostly danced around. Almost everything presented in the chapter I already knew; but, perhaps rather than struggling for years to understand these concepts I could have just read these ~50 pages? I did get a nice sense of clarity and a feeling that I was consolidating what I already knew into a more cohesive force.
Chapters 2 and 3 are fair enough, "Django for the Impatient: Building a Blog" and "Starting Out". Nothing really stood out as exceptional. I could imagine that I have just worked my way through the documentation's tutorial and these two sections really helping to expand my horizons and to clarify a few things.
The next section "Django in Depth" gives an enjoyable read of the M, the V, and the T in Django (change the letters if you feel the need). At only ~60 pages I don't know if the authors were intending this to be Django's K&R . But, it seemed to be just about right for my particular skill level. I definitely came in with a lot of the information presented; a few of the sections definitely pushed into areas I hadn't bothered considering too deeply like abstract base classes, multi-table inheritance, extra() and fixtures (in the Models section). I enjoyed the authors' treatment of the request and response objects in Django and felt my understanding enhanced. I have been making things work but not necessarily seeing the forest for the trees. I'm not sure how the sections on forms and templates differ from the official documentation; although, it is nice to have a document that is intentionally ordered and requires no electricity.
"Django Applications by Example" had some fun examples with some real-feeling problems to overcome. We get a custom field, use the flatpages app, use generic views and custom views judiciously, implement a search request-handler, deal with users and the admin app's current insistence on mutual trust where users have the same permissions.
I like that the authors went ahead and made use of "AJAX" with jquery in their liveblog example app. I'm biased because I use jquery. But, this is something that you will never see in the official docs or djangobook: A JAVASCRIPT SNIPPET! It definitely got my juices flowing about how I can make my own JSON API views. Usually I have just rendered an HTML snippet with my view and the asynchronously inserted it into the DOM (actually preferable in a lot of situations) but it's nice to see how a JSON api would work. The pastebin example also had syntax highlighting with javascript which was nice. I even learned about the "pre" tag. And there is a little introduction to cron with the Django ORM.
The "Advanced Django Programming" chapter is kind of a hodge-podge of things that will probably be encountered eventually if you work with Django enough. Django's power by virtue of Python's power is shown with examples using the csv and pycha modules. External python modules might have been it's own chapter but these topics are presented alongside customizing the admin, custom managers for your models and extending/replacing the templating system. Then, in "Advanced Django Deployment" we talk about cron, caching, testing and other miscellany. These ~50 pages seem a bit like the authors were getting tired and so rather than properly organizing they kind of just tacked on some extra things that they felt were neglected or not properly treated in other chapters (reminescent of tacking on some css rules at the end to get your website out the door when you know it would be more proper to factor it in to various external files). Here I can cut them a break because I am feeling like cutting this review short and it is barely a page ;)
Overall, I don't know if this book will "help me get things done". Actually, I rather think that the online book and the django documentation are first choices in a pinch and trying to really "get things done". However, the book gave me prospective on quite a few things that are either lacking from the documentation or are just presented in a different order. I like the way that this book is logically ordered.
Most importantly the book allowed me to get out in nature and hang out with my girlfriend (sans computer) while still sharpening my Python/Django tools. Plus, your mind can get a little scrambled with 10 tabs of documentation up in your browser alongside 5 blog postings that you are reading simultaneously. Sometimes it's definitely nice to have a single source with a linear organization.
The stated goal of the book is "to help you get things done" (using Django for web development). As a relative beginner with 3 years of Python and coming on 1 year of using Django for web development, I figured that I would either be the perfect audience for the book or already too advanced to get much out of it (it's been a pretty obsessive year).
The book starts out with a nice introduction to Python. I thought that this was a great place to start because the Django documentation intentionally assumes knowledge of Python and the free online django book dives straight into the merits of web frameworks and the history of Django. So, already the book is setting itself apart a bit from the free online resources.
I remember feeling a sense of clarity while reading the introduction, a good compromise between trying to be comprehensive and terse at the same time. The intro does a good job of presenting what you really do need to know about Python and some common pitfalls. Interesting that nothing is said of the string.format() method which is somewhat unfortunate as the official python docs say:
This method of string formatting is the new standard in Python 3.0, and should be preferred to the % formatting described in String Formatting Operations in new code.
But, alas, I (not to mention the official Django docs and probably 99% of Django devels) have always used % formatting and will probably continue to do so for the near future. I will be interested to see how Django and Python move forward. Actually, checkout the Django source itself:
skylar@ABC255:~/svn/django-trunk$ grep -r % * |grep \' |grep -v svn|grep -cv dateformat
4596
skylar@ABC255:~/svn/django-trunk$ grep -r % * |grep \" |grep -v svn|grep -cv dateformat
12818
skylar@ABC255:~/svn/django-trunk$ grep -r '\.format(' * |grep \' |grep -v svn|grep -cv dateformat
0
skylar@ABC255:~/svn/django-trunk$ grep -r '\.format(' * |grep \" |grep -v svn|grep -cv dateformat
0
Well, perhaps the authors are right in not mentioning the string.format method after all.
A small correction that I can't pass on mentioning here (being a math nerd): the book states that list.sort() sorts numeric values from smallest to largest. If I may present a list that I believe is ordered from smallest to largest: [1,2,3, -100000, -9999999999]. I spoke to Wesley Chun and he said that he would probably change to "the most-left on the number line to the most-right on the number line." I think that is about as good as it can be phrased without opening an analytical can of worms that could erupt and engulf us all! Coming back to earth after my self-satisfied, math-degree-induced intoxication, I learned a little about generators, the finally clause, raise and other aspects of the Python language that I have mostly danced around. Almost everything presented in the chapter I already knew; but, perhaps rather than struggling for years to understand these concepts I could have just read these ~50 pages? I did get a nice sense of clarity and a feeling that I was consolidating what I already knew into a more cohesive force.
Chapters 2 and 3 are fair enough, "Django for the Impatient: Building a Blog" and "Starting Out". Nothing really stood out as exceptional. I could imagine that I have just worked my way through the documentation's tutorial and these two sections really helping to expand my horizons and to clarify a few things.
The next section "Django in Depth" gives an enjoyable read of the M, the V, and the T in Django (change the letters if you feel the need). At only ~60 pages I don't know if the authors were intending this to be Django's K&R . But, it seemed to be just about right for my particular skill level. I definitely came in with a lot of the information presented; a few of the sections definitely pushed into areas I hadn't bothered considering too deeply like abstract base classes, multi-table inheritance, extra() and fixtures (in the Models section). I enjoyed the authors' treatment of the request and response objects in Django and felt my understanding enhanced. I have been making things work but not necessarily seeing the forest for the trees. I'm not sure how the sections on forms and templates differ from the official documentation; although, it is nice to have a document that is intentionally ordered and requires no electricity.
"Django Applications by Example" had some fun examples with some real-feeling problems to overcome. We get a custom field, use the flatpages app, use generic views and custom views judiciously, implement a search request-handler, deal with users and the admin app's current insistence on mutual trust where users have the same permissions.
I like that the authors went ahead and made use of "AJAX" with jquery in their liveblog example app. I'm biased because I use jquery. But, this is something that you will never see in the official docs or djangobook: A JAVASCRIPT SNIPPET! It definitely got my juices flowing about how I can make my own JSON API views. Usually I have just rendered an HTML snippet with my view and the asynchronously inserted it into the DOM (actually preferable in a lot of situations) but it's nice to see how a JSON api would work. The pastebin example also had syntax highlighting with javascript which was nice. I even learned about the "pre" tag. And there is a little introduction to cron with the Django ORM.
The "Advanced Django Programming" chapter is kind of a hodge-podge of things that will probably be encountered eventually if you work with Django enough. Django's power by virtue of Python's power is shown with examples using the csv and pycha modules. External python modules might have been it's own chapter but these topics are presented alongside customizing the admin, custom managers for your models and extending/replacing the templating system. Then, in "Advanced Django Deployment" we talk about cron, caching, testing and other miscellany. These ~50 pages seem a bit like the authors were getting tired and so rather than properly organizing they kind of just tacked on some extra things that they felt were neglected or not properly treated in other chapters (reminescent of tacking on some css rules at the end to get your website out the door when you know it would be more proper to factor it in to various external files). Here I can cut them a break because I am feeling like cutting this review short and it is barely a page ;)
Overall, I don't know if this book will "help me get things done". Actually, I rather think that the online book and the django documentation are first choices in a pinch and trying to really "get things done". However, the book gave me prospective on quite a few things that are either lacking from the documentation or are just presented in a different order. I like the way that this book is logically ordered.
Most importantly the book allowed me to get out in nature and hang out with my girlfriend (sans computer) while still sharpening my Python/Django tools. Plus, your mind can get a little scrambled with 10 tabs of documentation up in your browser alongside 5 blog postings that you are reading simultaneously. Sometimes it's definitely nice to have a single source with a linear organization.
Saturday, June 13, 2009
Book Review: Expert Python Programming
I've posted my review of Expert Python Programming to Readernaut.
Friday, June 12, 2009
Book review: The Economics of Iterative Development
I've finished my review of "The Economics of Iterative Development" from Addison-Wesley/Pearson and posted it on my blog.
Monday, January 5, 2009
January Meeting
Via Brandon Rhodes:
This month's Python Atlanta meeting is this Thursday, January 8th:
And, I have exciting news - the chairman of the Python Software Foundation himself, Steve Holden, will be our main speaker! He will kick off our new year by giving us his own State of the Union address: in "The State of the Python Community", he will talk about the Python community, its strengths, and its weaknesses. He will not only answer your questions about how to stay connected to the wider Python community, but will be asking *you* questions about how the community can be more accessible and serve you better!
Our other talk should also be great: ifPeople founder Christopher Johnson will answer the question "Why People Choose Plone" by talking about how his customers benefit from Plone, Python's flagship CMS (content management system). He will discuss how it integrates with other web-enabled services like Salesforce, and what it is like to install and theme a Plone site for the first time.
If you are very interested in Plone, note that the Atlanta Plone group meets at the ifPeople offices this Wednesday at 5:30pm for beer, slide presentations, and talk about their favorite CMS!
Feel free to either meet up with us early at the Howell Mill Figo Pasta at 6pm (email Brandon if you're coming so that he can get a head count), or just show up at the main meeting at 7:30pm at the GTRI Food Processing Technology Building for the presentations. Here are the meeting details, where you can RSVP and get directions.
See you on Thursday!
This month's Python Atlanta meeting is this Thursday, January 8th:
And, I have exciting news - the chairman of the Python Software Foundation himself, Steve Holden, will be our main speaker! He will kick off our new year by giving us his own State of the Union address: in "The State of the Python Community", he will talk about the Python community, its strengths, and its weaknesses. He will not only answer your questions about how to stay connected to the wider Python community, but will be asking *you* questions about how the community can be more accessible and serve you better!
Our other talk should also be great: ifPeople founder Christopher Johnson will answer the question "Why People Choose Plone" by talking about how his customers benefit from Plone, Python's flagship CMS (content management system). He will discuss how it integrates with other web-enabled services like Salesforce, and what it is like to install and theme a Plone site for the first time.
If you are very interested in Plone, note that the Atlanta Plone group meets at the ifPeople offices this Wednesday at 5:30pm for beer, slide presentations, and talk about their favorite CMS!
Feel free to either meet up with us early at the Howell Mill Figo Pasta at 6pm (email Brandon if you're coming so that he can get a head count), or just show up at the main meeting at 7:30pm at the GTRI Food Processing Technology Building for the presentations. Here are the meeting details, where you can RSVP and get directions.
See you on Thursday!
Sunday, October 26, 2008
15th Nov 2008 - Google App Engine Hackathon: Atlanta
Please join us on 15th Nov 2008 for a Google App Engine Hack-a-thon in Atlanta.
Learn about Google App Engine
The events will include training on the major features of Google App Engine, including data modeling, the App Engine APIs, some aspects of Django, and how to mashup App Engine with other web services. Google Engineers and Product Managers will be on hand to help and to answer questions throughout the day.
Build With Us, or Build Your Own
Throughout the day, we will be building a complete App Engine application, and sharing the code with you so you can code along with us. If, on the other hand, you already have a great idea for what to build, bring that idea with you to the hackathon. Even better, bring along anything you can prepare ahead of time (sketches, designs, web page mock ups, etc.) and use the time and information provided to develop your idea into a working application, then share it with the world.
At the end of the day, we'll invite you to share your App Engine applications with the group.
What Do I Need?
We will provide facilities, power, food, refreshments and experts to help you learn to use Google App Engine and write your application. Just bring your laptops, ideas and enthusiasm to complete the mix.
When and Where?
The Atlanta hack-a-thon will take place Saturday 15th Nov 2008 from 10AM-6PM. It will be held at Google Atlanta in Millennium at Midtown, 10 10th Street NE, Suite 600, Atlanta, GA 30309
Space is limited so Sign Up now: http://sites.google.com/site/gaehackathonatlanta/registration
Learn about Google App Engine
The events will include training on the major features of Google App Engine, including data modeling, the App Engine APIs, some aspects of Django, and how to mashup App Engine with other web services. Google Engineers and Product Managers will be on hand to help and to answer questions throughout the day.
Build With Us, or Build Your Own
Throughout the day, we will be building a complete App Engine application, and sharing the code with you so you can code along with us. If, on the other hand, you already have a great idea for what to build, bring that idea with you to the hackathon. Even better, bring along anything you can prepare ahead of time (sketches, designs, web page mock ups, etc.) and use the time and information provided to develop your idea into a working application, then share it with the world.
At the end of the day, we'll invite you to share your App Engine applications with the group.
What Do I Need?
We will provide facilities, power, food, refreshments and experts to help you learn to use Google App Engine and write your application. Just bring your laptops, ideas and enthusiasm to complete the mix.
When and Where?
The Atlanta hack-a-thon will take place Saturday 15th Nov 2008 from 10AM-6PM. It will be held at Google Atlanta in Millennium at Midtown, 10 10th Street NE, Suite 600, Atlanta, GA 30309
Space is limited so Sign Up now: http://sites.google.com/site/gaehackathonatlanta/registration
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