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• Import module stored in a cStringIO data structure vs. physical disk file

  - by Malcolm

  Is there a way to import a Python module stored in a cStringIO data structure vs. physical disk file? It looks like "imp.load_compiled(name, pathname[, file])" is what I need, but the description of this method (and similar methods) has the following disclaimer: Quote: "The file argument is the byte-compiled code file, open for reading in binary mode, from the beginning. It must currently be a real file object, not a user-defined class emulating a file." [1] I tried using a cStringIO object vs. a real file object, but the help documentation is correct - only a real file object can be used. Any ideas on why these modules would impose such a restriction or is this just an historical artifact? Are there any techniques I can use to avoid this physical file requirement? Thanks, Malcolm [1] http://docs.python.org/library/imp.html#imp.load_module

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• Bitmap .compress() returning false

  - by Tsimmi

  Hi! The next call to Bitmap.compress(), has a different behavior on the Emulator and on a real device. In the Emulator, result is true, and in a real device the same call returns false. FileOutputStream fos = new FileOutputStream(destinationFile, true); boolean result = myBitmap.compress(Bitmap.CompressFormat.PNG, 100, fos); The thing is that on the emulator this is working great, on a real device ( a HERO) when calling .compress(), this returns false, witch means that it was unable to convert the image properly. Why is this? Thank you

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• O(log N) == O(1) - Why not?

  - by phoku

  Whenever I consider algorithms/data structures I tend to replace the log(N) parts by constants. Oh, I know log(N) diverges - but does it matter in real world applications? log(infinity) < 100 for all practical purposes. I am really curious for real world examples where this doesn't hold. To clarify: I understand O(f(N)) I am curious about real world examples where the asymptotic behaviour matters more than the constants of the actual performance. If log(N) can be replaced by a constant it still can be replaced by a constant in O( N log N). This question is for the sake of (a) entertainment and (b) to gather arguments to use if I run (again) into a controversy about the performance of a design.

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• Decorators vs. classes in python web development.

  - by Tristan

  I've noticed three main ways Python web frameworks deal request handing: decorators, controller classes with methods for individual requests, and request classes with methods for GET/POST. I'm curious about the virtues of these three approaches. Are there major advantages or disadvantages to any of these approaches? To fix ideas, here are three examples. Bottle uses decorators: @route('/') def index(): return 'Hello World!' Pylons uses controller classes: class HelloController(BaseController): def index(self): return 'Hello World' Tornado uses request handler classes with methods for types: class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello, world") Which style is the best practice?

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• Differentiate VMware network adapter from physical network adapters

  - by Venkat

  I have to differentiate between the real addresses and the VM addresses using any Windows API. I'm using Getadaptersaddresses API to populate a list of ipaddresses for the local machine. I need to extract only the "real" addresses apart from the addresses associated with the VMware network adapter and other addresses(auto-configuration and tunnel adapter addresses) I've not been able to find any API or any flag to differentiate this. Is there any way this can be done? PS:The IfType flag in the IP_ADAPTER_ADDRESSES structure returned by Getadaptersaddresses doesn't help me differentiate between VMware addresses and the real addresses

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• html - problem with word wrapping

  - by pakita883

  Hello! I have some text in div, and I want it to wrap to fit document width (without any scrolls!). I don't want to have word-break, like div {word-wrap: break-word;} For example (this is what I want to get): hello world! today is a good day. But not: hello world! today is a good day. or: hello world! today is a go od day.

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• How to display a tree of objects in a JTree?

  - by paul

  Imagine a collection of objects such as World, Country, Region and City. World contains a list of Country objects, Country contains a list of Region objects etc. I would like to represent this structure in a JTree and be able to add, remove and move objects around the tree. Can I easily create a TableModel from this structure? World would be the root object and I would need to perform some object-specific rendering. Any one know of an appropriate tutorial?

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• Ruby-Graphwiz does not render png

  - by auralbee

  I just tried the ruby-graphwiz gem (http://github.com/glejeune/Ruby-Graphviz). I followed the instructions (installed Graphwiz, gem and dependencies) and tried the example from the Github page. Unfortunately I am not able to render any output image (png,dot). # Create a new graph g = GraphViz.new( :G, :type => :digraph ) # Create two nodes hello = g.add_node( "Hello" ) world = g.add_node( "World" ) # Create an edge between the two nodes g.add_edge( hello, world ) # Generate output image g.output( :png => "hello_world.png" ) When I run the skript from the console I get no error message but also no output as expected. What could be the problem? Folders have read/write access for everybody. Thanks in advance. By the way, I´m working on a Mac (Leopard 10.6).

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• Ruby function similar to parse_str in php?

  - by jolierouge

  Hi, I need to parse a string like this: a[metadata][][name]=dont|do|this&a[name]=Hello World&a[metadata][][value]=i|really|mean it CGI::parse gives me this: {"a[name]"=["Hello World"], "a[metadata][][name]"=["dont|do|this"], "a[metadata][][value]"=["i|really|mean it"]} I would like something like what PHP does with parse_str, which when given the same string does this: Array ( [a] => Array ( [metadata] => Array ( [0] => Array ( [name] => dont|do|this ) [1] => Array ( [value] => i|really|mean it ) ) [name] => Hello World )) Any help would be awesome. Thanks!

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• Passing data between Castle Windsor's Interceptors

  - by Nhím H? Báo

  I'm adopting Castle Windsor for my WCF project and feel really amazed about this. However, I'm having a scenario that I don't really know if Castle Windsor supports. For example I have the following chained Interceptors Interceptor 1 > Interceptor 2 > Interceptor 3 > Interceptor 4 > Real method Interceptor 1 returns some data and I want that to be available in Interceptor 2 Interceptor 2 in turn does it work and returns the data that I want to make avaialbe in the 3,4, interceptor. The real case scenario is that we're having a WCF service, Interceptor 1 will parse the request header into a Header object(username, password, etc.). The latter interceptors and real method will ultilize this Header object. I know that I can use Session variable to transport data, but is it a built-in, more elegant, more reliable way to handle this?

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• Cannot find libmysqlclient under /usr. while build PHP 5.2 from source on Ubuntu 12.4

  - by fkniya

  I was trying to build PHP 5.2.17 from source on Ubuntu 12.4 64bit using this configuration: ./configure --prefix=/opt/php5.2 --with-config-file-path=/opt/php5.2 --with-mysql but I keep getting this error: configure: error: Cannot find libmysqlclient under /usr. Note that the MySQL client library is not bundled anymore! I suspected that dev package for mysql is not installed so tried installing libmysqlclient-dev but it was already there. Any Idea how to resolve this? EDIT1: I minimized the configure command so it just focuses to mysql. also I'm running a 64bit version of ubuntu. EDIT2: tried running ldconfig -v |grep mysql and here is the output # ldconfig -v |grep mysql /sbin/ldconfig.real: Path `/lib/x86_64-linux-gnu' given more than once /sbin/ldconfig.real: Path `/usr/lib/x86_64-linux-gnu' given more than once /sbin/ldconfig.real: Cannot stat /usr/lib/x86_64-linux-gnu/libnss_db.so: No such file or directory libmysqlclient.so.18 -> libmysqlclient_r.so.18.0.0 libmysqlpp.so.3 -> libmysqlpp.so.3.1.0

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• Searching for a complex and well-designed PHP OOP application to learn from

  - by Raveren

  Basically, I am diving ever deeper into complex programming practices. I've almost no friends that are experienced (or more experienced than me) programmers to learn from, so I am looking for the next best thing - learning from the work of strangers. Can anyone recommend a real world finished and working application written well and OOP-centered. I'd like to take and analyze its source. Bonus if it's based on Zend Framework. What I am interested most in is objects that unlike desktop applications, have only one real operation done to them (or to their representation in DB or session) during their lifetime (or pageload), like user-logIn(). I'm interested in optimal and reusable design patterns and their real life implementations.

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• Write an xml file from the specified node?

  - by Googler

  Hi all, This is my xml file Input: <world> <patent> <xml>a</xml> <java>333</java> <jaxb>111</jaxb> </patent> </world> I need the read the above xml file and reproduce the following the output Output: <patent> <xml>a</xml> <java>333</java> <jaxb>111</jaxb> </patent> I dont need the world element. How to achieve this using Xpath. Can anyone help me on this?

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• JQUERY gotcha, Why can't I change inside an iframe that is hosted locally?

  - by nobosh

  Give the following on a page: <iframe frameborder="0" allowtransparency="true" tabindex="0" src="" title="Rich text editor" style="width: 100%; height: 100%;" id="hi-world"> <p><span class="tipoff" title="System tooltip for search engines">Download now</span></p><p>adasdads</p><p>a</p><p><span class="tipoff" title="System tooltip for search engines">Download n1111ow</span></p> </iframe> The following works: $('#hi-world').css("width","10px"); But what I want to do is change the paragraphs in the iFrame, and this does not work: $('#hi-world').find('p').css("background","red");

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• How to make pytest display a custom string representation for fixture parameters?

  - by Björn Pollex

  When using builtin types as fixture parameters, pytest prints out the value of the parameters in the test report. For example: @fixture(params=['hello', 'world'] def data(request): return request.param def test_something(data): pass Running this with py.test --verbose will print something like: test_example.py:7: test_something[hello] PASSED test_example.py:7: test_something[world] PASSED Note that the value of the parameter is printed in square brackets after the test name. Now, when using an object of a user-defined class as parameter, like so: class Param(object): def __init__(self, text): self.text = text @fixture(params=[Param('hello'), Param('world')] def data(request): return request.param def test_something(data): pass pytest will simply enumerate the number of values (p0, p1, etc.): test_example.py:7: test_something[p0] PASSED test_example.py:7: test_something[p1] PASSED This behavior does not change even when the user-defined class provides custom __str__ and __repr__ implementations. Is there any way to make pytest display something more useful than just p0 here? I am using pytest 2.5.2 on Python 2.7.6 on Windows 7.

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• Apache/PHP is determined to serve the wrong file

  - by Lucas

  I have a page that is called with a url like http://testserver/path/to/foo/bar/ but apache is serving the wrong file altogether. /path/to/ is a real directory where all the code and .htaccess file is. foo/bar/ is supposed to redirect to foo_bar.php with a RewriteRule, but it never gets there. It's not a mod_rewrite issue as I have commented out all the rules that could be interfering, which should give me 404s for that request, but the same problem occurs: the file that is served is /path/to/foo.php, so in it I var_dump $_SERVER and get: REQUEST_URI = /path/to/foo/bar/ SCRIPT_NAME = /path/to/foo.php SCRIPT_FILENAME = /real/path/to/foo.php PATH_INFO = /bar/ PATH_TRANSLATED = /real/bar/ PHP_SELF = /path/to/foo.php/bar/ Why is this request being routed to this file at all?

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• Returning more than 1000 rows in classic asp adodb.recordset

  - by peg_leg

  My code in asp classic, doing a mssql database query: rs.pagesize = 1000 ' this should enable paging rs.maxrecords = 0 ' 0 = unlimited maxrecords response.write "hello world 1<br>" rs.open strSql, conn response.write "hello world 2<br>" My output when there are fewer than 1000 rows returned is good. More than 1000 rows and I don't get the "hello world 2". I thought that setting pagesize sets up paging and thus allows all rows to be returned regardless of how many rows there are. Without setting pagesize, paging is not enable and the limit is 1000 rows. However my page is acting as if pagesize is not working at all. Please advise.

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• How can I get my UserControl to look like a ComboBox?

  - by NoLuke

  I have a user control containing a TextBox, ToggleButton and Popup, just like the real ComboBox. Now my problem is to style it so that it looks just like the normal ComboBox. In Blend, I can "Edit Template/Edit a Copy..." of a real ComboBox to get the bits and pieces I need to get it to look right. For one Windows theme (Aero). If the application is run on another theme (e.g Luna), the control does not change its look, it still has the Aero look. Do I have to supply a style/template for each Windows theme, or can I somehow get hold of (at run-time) the default ComboBox style and apply it to my UserControl? Instead of making a UserControl, I have tried modifying a real ComboBox to my needs, but I just couldn't get it to work. How can I replace ALL the logic of a ComboBox with my own?

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• Prevent Java from parsing the command line parameters

  - by User1

  Would like to make anapplication in Java that will not automatically parse parameters used on the command-line. Currently, java requires public static void main(string[]) as the entry point signature. I would like just a single string that I parse myself. Can this be done at all? Here's an example: java MyProgram.class Hello World I would want it to give me Hello World without requiring quotes around that string. I would even settle for java giving me the entire java MyProgram.class Hello World. I'm thinking this is something beyond Java and has more to do with the shell.

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• Convert arbitrary length to a value between -1.0 a 1.0?

  - by TheDarkIn1978

  How can I convert a length into a value in the range -1.0 to 1.0? Example: my stage is 440px in length and accepts mouse events. I would like to click in the middle of the stage, and rather than an output of X = 220, I'd like it to be X = 0. Similarly, I'd like the real X = 0 to become X = -1.0 and the real X = 440 to become X = 1.0. I don't have access to the stage, so i can't simply center-register it, which would make this process a lot easier. Also, it's not possible to dynamically change the actual size of my stage, so I'm looking for a formula that will translate the mouse's real X coordinate of the stage to evenly fit within a range from -1 to 1.

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• Math - Convert Arbitrary Length to Range From -1.0 to 1.0?

  - by TheDarkIn1978

  how can i convert a length into a range of -1.0 to 1.0? example: my stage is 440px in length and accepts mouse events. i would like to click in the middle of the stage, and rather than an output of X = 220, i'd like it to be X = 0. similarly, i'd like the real X = 0 to become X = -1.0 and the real X = 440 to become X = 1.0. i don't have access to the stage, so i can't simply center-register it, which would make this process a lot easier. also, it's not possible to dynamically change the actual size of my stage, so i'm looking for a formula that will translate the mouse's real X coordinate of the stage to evenly fit within a range from -1 to 1.

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• What's the difference between SVN and Git for merging?

  - by Alexander

  As the title suggests, I am curious as to why so many people tout Git as a superior alternative to branching/merging over SVN. I am primarily curious because SVN merging sucks and I would like an alternative solution. How does Git handle merging better? How does it work? For example, in SVN, if I have the following line: Hello World! Then user1 changes it to: Hello World!1 then user2 changes it to: Hello World!12 Then user2 commits, then user1 commits, SVN would give you a conflict. Can Git resolve something simple as this?

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• simple php script

  - by Nerdysyntax

  New to php and taking a class for it. Bought php6 and mysql 6 bible to get started. Of course the hello world script is the first you get and it doesn't show. It just reads part of my script and I'm not sure the problem. Link to test - http://harden6615.com/ I am using a hosted server I bought for class, but I have also check it using MAMP. I figured my script is wrong, but I have copied and pasted and still no Hello World. Any suggestions? What I copied: <?php print("Hello, World<BR />\n"); phpinfo(); ?>

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• Best way to save info in hash

  - by qwertymk

  I have a webpage that the user inputs data into a textarea and then process and display it with some javascript. For example if the user types: _Hello_ *World* it would do something like: <underline>Hello</underline> <b>World</b> Or something like that, the details aren't important. Now the user can "save" the page to make it something like site.com/page#_Hello_%20*World* and share that link with others. My question is: Is this the best way to do this? Is there a limit on a url that I should be worried about? Should I do something like what jsfiddle does? I would prefer not to as the site would work offline if the full text would be in the hash, and as the nature of the site is to be used offline, the user would have to first cache the jsfiddle-like hash before they could use it. What's the best way to do this?

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• c++ macros with memory?

  - by anon

  Is it possible to define macros write_foo(A); and read_foo(); so that: WRITE_FOO(hello); code_block_1; READ_FOO(); code_block_2; READ_FOO(); WRITE_FOO(world); code_block_3; READ_FOO(); code_block_4; READ_FOO(); expands into: code_block_1; hello; code_block_2; hello; code_boock_3; world; code_block_4; world; ? Thanks!

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