global namespace

Original blog, reprint please indicate the source--Zhou Xuewei http://www.cnblogs.com/zxouxuewei/Python ModuleThe Python module, which is a python file that ends with a. Py, contains Python object definitions and Python statements.Modules allow you

previous section ReviewFunction ObjectFunctions can be passed as datadef func ():Pass1. can be referenced. F=fun2. can be passed as a parameter to another function3. can be used as the return value of a function4. elements that can be used as

One: function nesting, in the process of calling a function, another call to other functionsdef bar (): Print (' from Bar ')def foo (): Print (' from foo ') Bar ()Foo ()The use of nested functions, broken down into the smallest operation,

Read Catalogue Basic methods Supports chained calls Let the plug-in receive parameters Object-oriented plug-in development About namespaces About variable definition and naming Advantages of compression Tools

Read Catalogue Basic methods Supports chained calls Let the plug-in receive parameters Object-oriented plug-in development About namespaces About variable definition and naming Advantages of compression Tools

Because the new job to do front-end, as the front-end small white and can learn as soon as possible, so choose the web of node. JS's Introductory tutorial. Blogs only do their own records of learning.JavaScript lacks a module management mechanism,

Introduction1A = 12 deffunc ():3 Print(a)#output Result: no output4 5A = 16 deffunc ():7 Print(a)#output Result: no output8Func ()#output results: 19 Ten deffunc (): OneA = 1 A - func () - Print(a)#output Result: Nameerror:name ' A ' is not

Python has two versions, 2.x and 3.x, two versions are incompatible, 3.x does not consider backward compatibility with 2.x code.In 3.x, some syntax, the behavior of the built-in functions and objects have been adjusted.Most of the Python libraries

One: Exception handlingAn exception is an error that is expected to occur during program execution . It is an issue that cannot be resolved by programs other than the normal function of the program. Usually problem detection and problem handling are

1, *args dynamic parameters, universal parameters*args is to accept the remaining positional parameters corresponding to the arguments and place them in the tuple. When defining a function, *args represents an aggregation.def func (*args):

Python function nested Function object namespace and scope closure function adorner one, function nestingNested Definitions of functionsdef func1 (): Print ('fromfunc1') def # func2= memory address Print ('fromfunc2') Print (FUNC2)

This function executes a statement or function. The argument object is a string of statements or an object name for a compiled statement. The parameter globals is a global namespace that specifies the global namespace that can be accessed when the

Transferred from: http://blog.csdn.net/mldxs/article/details/8652010first, the inspect module mainly provides four kinds of use :(1). Type check for modules, frames, functions, etc.(2). Get the source code(3). Get information about the parameters of

ScopeScope rules tell us the valid range of a variable, where it was created and where it was destroyed (that is, out of scope). The valid scope of a variable starts at its defining point, to the first closing parenthesis of the nearest opening

Original link: http://www.kuqin.com/shuoit/20140728/341451.htmlMany Python beginners want to know which version of Python they should start learning from. My answer to this question is "you learn the version of the tutorial you like and then check

OneIsDigit ()True:unicode number, byte digit (single byte), full-width digit (double byte), Roman numeralsFalse: Chinese numeralsError: NoneIsdecimal ()True:unicode number, full-width digit (double-byte)False: Roman numerals, Chinese

size_t size_t. A Basic unsigned integer c + + type. It is the type of the result returned by sizeof operator. The type ' s size is chosen so, it could store the maximum size of a theoretically possible array of any type. On a 32-bit system size_

The inspect module provides four main uses:1. Type check for module, frame, function2. Get the source code3. Get parameter information for a class or function4. Parsing the StackI. Type and members1. Inspect. GetMembers (object[, predicate]) The

Namespaces are designed to better control the scope of names to manage different class libraries and avoid collisions.1. Create a Namespaceas follows, the namespace keyword was used to create the Pers and debts two namespaces.#ifndef

Execution environment in a Python virtual machinePython's virtual machine is actually the process of simulating the operating system running an executable file, first of all, let's talk about the normal x86 machine, the executable file is in a way