naming

I have noticed that considerably amount of questions in SO, relating to Python, are about people messing up Sys -class, OS class and no class. For example, an easy confusing is the case: os.open("something") , open("something") and sys.open("something") . I haven't understood yet the reasons behind the naming of classes, perhaps it is just an evolution. I would like to hear why they were created with their current names? Are naming due to things like having FDs in a class? Is naming because some classes require special privileges? To which extent is the naming a design solution? If you cannot

I'm currently reading a file and importing the data in it with the line: # Read data from file. data = np.loadtxt(join(mypath, 'file.data'), unpack=True) where the variable mypath is known. The issue is that the file file.data will change with time assuming names like: file_3453453.data file_12324.data file_987667.data ... So I need a way to tell the code to open the file in that path that has a name like file*.data , assuming that there will always be only one file by that name in the path. Is there a way to do this in python ? You can use the glob module. It allows pattern matching on

Take a look at the snippet below. Is there any function I could write in replace of ... to generate the route, that could reused in another function? Something like var route = this.show.fullyQualifiedName perhaps? var services = { 'github.com': { api: { v2: { json: { repos: { show: function(username, fn) { var route = ...; // route now == 'github.com/api/v2/json/repos/show' route += '/' + username; return $.getJSON('http://' + route).done(fn); } } } } } } } No, there isn't, at least not using "reflection" style operations. Objects have no knowledge of the name of the objects in which they're

I tried creating a model called "class" (as in a graduating class of students), and encountered all kinds of problems. What are some other words or class names to avoid in Rails? Some links I've found: http://juicebar.wordpress.com/2007/05/30/reserved-words-in-rails/ http://railsforum.com/viewtopic.php?id=22242 This page has a very long list of words not to use: https://reservedwords.herokuapp.com/words Because 'class' comes up very commonly as a name with metaprogamming, I think the accepted ruby alternative is 'klass'. This is obviously a different context from your graduating class

Related to this question , what is the best practice for naming a mutex? I realize this may vary with OS and even with version (esp for Windows), so please specify platform in answering. My interest is in Win XP and Vista. Sam Saffron A really safe name for a global mutex is <a description> + <a GUID> : MyApp Single Instance Mutex : {c96f7db4-d743-4718-bef0-8533a198bcca} By using a name like this there is absolutely no chance someone else will use the same mutex name as your mutex. Sniffing around with process explorer, you can see that GUIDs are used in a few places, though in general they

I was wondering why people don't use uppercase in name of header files. I see many header files with name only in lowercase. But I thought it would be more easy to read if they write them with uppercase, say "BaseClass.h", "SubClass.h", instead of "baseclass.h", "subclass.h". Why is that? Or it's just that the header files I've seen are named only in lowercase? There are systems out there which are case-sensitive (*nix), and there are systems which are traditionally case-insensitive (Windows). As a result, if you develop on *nix and create two files: baseclass.h and BaseClass.h - your code

So, today while I was coding I found out that creating a function with the name init generated an error method init() not found , but when I renamed it to startup it all worked fine. Is the word "init" preserved for some internal operation in Go or am I'm missing something here? Yes, the function init() is special. It is automatically executed when a package is loaded. Even the package main may contain one or more init() functions that are executed before the actual program begins: http://golang.org/doc/effective_go.html#init It is part of the package initialization, as explained in the

@GetMapping("item") public @ResponseBody String get(@ModelAttribute Item item) Item has the attributes name itemType When I access /item?name=foo&item_type=bar the item gets populated only with name not with itemType . I tried a bunch of things to get the itemType attribute mapped from item_type . Added @JsonProperty("item_type") inside Item 's itemType attribute. Described here . Added a JackonConfiguration that sets the propertyNamingStrategy to PropertyNamingStrategy.SNAKE_CASE. Described here . Added spring.jackson.property-naming-strategy=SNAKE_CASE to my Spring Boot application