By Wesley J. Chun, Jeff Forcier, Paul Bissex
Utilizing the easy, strong, Python-based Django framework, you could construct robust internet options with remarkably few strains of code. In Python net improvement with Django®, 3 skilled Django and Python builders disguise the entire concepts, instruments, and ideas you want to utilize Django 1.0, together with the entire significant positive aspects of the hot free up. <P style="MARGIN: 0px">
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<P style="MARGIN: 0px">The authors educate Django via in-depth causes, plus supply huge pattern code supported with pictures and line-by-line motives. You’ll notice how Django leverages Python’s improvement velocity and adaptability that can assist you remedy a large spectrum of net improvement difficulties and research Django most sensible practices coated nowhere else. You’ll construct your first Django software in exactly mins and deepen your real-world talents via start-to-finish software initiatives including
<UL> * easy internet log (blog) * on-line picture gallery * easy content material administration method * Ajax-powered dwell blogger * on-line resource code sharing/syntax highlighting software * tips on how to run your Django purposes at the Google App Engine
</UL> <P style="MARGIN: 0px">
<P style="MARGIN: 0px">This whole advisor starts off via introducing Python, Django, and net improvement thoughts, then dives into the Django framework, offering a deep realizing of its significant elements (models, perspectives, templates), and the way they arrive jointly to shape entire net purposes. After a dialogue of 4 self sufficient operating Django purposes, assurance turns to complicated issues, equivalent to caching, extending the template method, syndication, admin customization, and trying out. priceless reference appendices hide utilizing the command-line, fitting and configuring Django, improvement instruments, exploring current Django functions, the Google App Engine, and the way to get extra concerned with the Django community.
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<P style="MARGIN: 0px">Introduction 1
<P style="MARGIN: 0px">
<P style="MARGIN: 0px">Part I: Getting Started
<P style="MARGIN: 0px">Chapter 1: functional Python for Django 7
<P style="MARGIN: 0px">Chapter 2: Django for the Impatient: construction a web publication 57
<P style="MARGIN: 0px">Chapter three: beginning Out 77
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<P style="MARGIN: 0px">Part II: Django in Depth
<P style="MARGIN: 0px">Chapter four: Defining and utilizing versions 89
<P style="MARGIN: 0px">Chapter five: URLs, HTTP Mechanisms, and perspectives 117
<P style="MARGIN: 0px">Chapter 6: Templates and shape Processing 135
<P style="MARGIN: 0px">
<P style="MARGIN: 0px">Part III: Django functions by way of Example
<P style="MARGIN: 0px">Chapter 7: picture Gallery 159
<P style="MARGIN: 0px">Chapter eight: content material administration process 181
<P style="MARGIN: 0px">Chapter nine: Liveblog 205
<P style="MARGIN: 0px">Chapter 10: Pastebin 221
<P style="MARGIN: 0px">
<P style="MARGIN: 0px">Part IV: complex Django ideas and Features
<P style="MARGIN: 0px">Chapter eleven: complicated Django Programming 235
<P style="MARGIN: 0px">Chapter 12: complex Django Deployment 261
<P style="MARGIN: 0px">
<P style="MARGIN: 0px">Part V: Appendices
<P style="MARGIN: 0px">Appendix A: Command Line fundamentals 285
<P style="MARGIN: 0px">Appendix B: fitting and working Django 295
<P style="MARGIN: 0px">Appendix C: instruments for useful Django improvement 313
<P style="MARGIN: 0px">Appendix D: discovering, comparing, and utilizing Django purposes 321
<P style="MARGIN: 0px">Appendix E: Django at the Google App Engine 325
<P style="MARGIN: 0px">Appendix F: getting concerned within the Django venture 337
<P style="MARGIN: 0px">
<P style="MARGIN: 0px">Index 339
<P style="MARGIN: 0px">Colophon 375
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If you have a long string that you have to generate, you no longer have to worry about slipping end-of-line characters, such as \\n or \\r\\n, into all your strings to make them wrap; instead, you can simply use triple quotes, such as in this XML snippet. This is because the string format operator is just that— an operator—and so it’s possible to define a format string in one part of your code, and fill it out with the operator and tuple of arguments later on. Although lists enable their values to be changed and have methods that do so, tuples are immutable, meaning you cannot change their values—and, partly because of this, they do not have methods.
Variables can be thought of as names that refer to otherwise anonymous objects, which contain the actual values involved—and thus, any given variable can have its value altered at any time, like so >>> foo = 'bar' >>> foo 'bar' >>> foo = 1 >>> foo 1 Python Standard Types In this example, the variable foo is mapped to a string object, 'bar', but is then remapped to an integer object, 1. ). Because you can remap variable names like this, you are never really 100 percent sure what type of object a variable is pointing to at any given time, unless you ask the interpreter for more information.
Perform the same get call but with success this time. 7. Iterate through the dictionary and display each key-value pair. Let’s take things slightly out-of-turn. ), and it is this (lack of) ordering of keys that enables hashes to be very quick in the lookup of values. Alternately, you can use square-bracket notation, similar to retrieving a single element of a sequence, d['pub']. The get method is safer as it always returns a value instead of raising an error. There’s another, even more powerful method called setdefault.