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What's the difference between eval, exec, and compile?
...in <module>
File "<string>", line 1
a = 47
^
SyntaxError: invalid syntax
The compile in 'exec' mode compiles any number of statements into a bytecode that implicitly always returns None, whereas in 'eval' mode it compiles a single expression into bytecode that returns the...
What is a monad?
... Failure Monad.)
Extending this idea, you can implement "exceptions". (The Error Monad or Exception Monad.) Because you're defining them yourself rather than it being a language feature, you can define how they work. (E.g., maybe you want to ignore the first two exceptions and only abort when a thir...
Callback functions in C++
...
There is an error in the class method example. The Invocation should be: (instance.*callback)(1.0f)
– CarlJohnson
Sep 24 '12 at 22:15
...
Should a Netflix or Twitter-style web service use REST or SOAP? [closed]
...ly use two of the verbs, the caching is constantly getting in the way, the error handling swallows so much information, it’s constantly looking for a goddamn favicon.ico. Just shoot me.
Readable URL. Only nouns, no verbs. Yeah, that’s easy as long as we are only doing CRUD operations and we onl...
How can you make a custom keyboard in Android?
...custom keyboard view MyKeyboard. (We will add this code soon so ignore the error for now.) The benefit of putting all of our keyboard code into a single view is that it makes it easy to reuse in another activity or app.
res/layout/activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<...
Difference between MEAN.js and MEAN.io
...ing wiredep<br>&nbsp;&nbsp;&nbsp;&nbsp;* Approach to error handling, Server-side logging<br><b>Client/Server Communication</b>:<br>&nbsp;&nbsp;&nbsp;&nbsp;* Centralized event handling<br>&nbsp;&nbsp;&nbsp;&nbsp;* App...
Why is it slower to iterate over a small string than a small list?
...dex >= PyUnicode_GET_LENGTH(self)) {
PyErr_SetString(PyExc_IndexError, "string index out of range");
return NULL;
}
kind = PyUnicode_KIND(self);
data = PyUnicode_DATA(self);
ch = PyUnicode_READ(kind, data, index);
if (ch < 256)
return get_latin1_char...
What is a correct mime type for docx, pptx etc?
...p-diff+xml", "xenc": "application/xenc+xml", "xer": "application/patch-ops-error+xml", "rl": "application/resource-lists+xml", "rs": "application/rls-services+xml", "rld": "application/resource-lists-diff+xml", "xslt": "application/xslt+xml", "xop": "application/xop+xml", "xpi": "application/x-xpins...
What are metaclasses in Python?
...lass
Example.unregister()
inst = Example(10)
# Will fail with an AttributeError
#inst.unregister()
print inst + inst
class Sibling(MyObject):
pass
ExampleSibling = Example + Sibling
# ExampleSibling is now a subclass of both Example and Sibling (with no
# content of its own) although it will ...
Call a Server-side Method on a Resource in a RESTful Way
...hen the client sends such a statement and receives a success message or an error message.
HTTP
HTTP implements REST constraints as follows:
resource identification: URI
resource representation: entity-body
self-description: method or status code, headers, and possibly parts of the entity-body (...