adp modules

Do not name the file as a module name#pickle模块Serialization ofImport PickleDIC = {' name ': ' Dodo ', ' age ': 18}Print (Pickle.dumps (DIC)) #转成了bytes类型With open (' A.pickle ', ' WB ') as F: #存F.write (Pickle.dumps (DIC))# Simple MethodPickle.dump (Dic,open (' B.pickle ', ' WB ')DeserializationWith open (' A.pickle ', ' RB ') as F: #取Date = Pickle.loads (F.read ())Print (date)# Simple Methodres = pickle.load (open (' B.pickle ', ' RB '))Print (RES)"""Note: Pickle can serialize arbitrary py data

take advantage of subprocess. Pipes connect the inputs and outputs of multiple sub-processes together to form a pipeline (pipe):1 Importsubprocess2 #S1 = subprocess. Popen (["LS", "-l"], stdout=subprocess. PIPE)3 #print (S1.stdout.read ())4 #s2.communicate ()5S1 = subprocess. Popen (["Cat","/etc/passwd"], stdout=subprocess. PIPE)6S2 = subprocess. Popen (["grep","0:0"],stdin=s1.stdout, stdout=subprocess. PIPE)7out =s2.communicate ()8 Print(out)9 TenS=subprocess. Popen ("dir", shell=true,stdout=s

can be json.loads out, not necessarily dumps data to loads attention .Pickle##----------------------------SerializationImportPickle dic={'name':'Alvin',' Age': 23,'Sex':'male'} Print(Type (DIC))#J=pickle.dumps (DIC)Print(Type (j))#F=open ('Serialized Object _pickle','WB')#Note is that W is written STR,WB is written bytes,j is ' bytes 'F.write (j)#-------------------equivalent to Pickle.dump (dic,f)f.close ()#-------------------------deserializationImportPicklef=open ('Serialized Object _pickle'

, not just returns false24.os.path.getsize (' homework.py ')Get File size25.os.path.join (' d:/', ' python/', ' MLL ', ' test.py ')Stitching into a path26.os.walk (R ' D:\syz_python\code\day6\test ')Get content under DirectoryAbs_path the absolute path of the current loopDir directory below all folders []All files under file directory []Second, sys module1.sys.pathPath is a directory listing from which Python looks for third-party extensions. When Python starts, Sys.path is initialized according

interpreter and gives control to the executed program.The OS.SEP variable is used primarily for separators in the system path.Windows system through is "\ \", Linux class system such as Ubuntu separator is "/", and Apple Mac OS system is ":".Iv. OS module Case code DemoSummary:OS module in the system files and directory operations used more, is also our common module, we must master the knowledge, which is a typical Python standard cross-platform module, support Windows and Linux system operati

First, what is the module　　In order to write maintainable code, many functions are grouped into separate files, so that each file contains relatively few code, and the programming language uses this kind of organizational method. In Python, a. py file is called a module.Ii. What are the benefits of using modules? The greatest benefit is that the maintainability of the code is greatly improved. Second, writing code does not have to start from

Modules and packages, modulesModule A module is a file that contains python definitions and declarations. The file name is the extension of the module name and. py. In fact, the import module is divided into four general categories: 1. code written in python (. py file) 2 C or C ++ extensions that have been compiled as shared libraries or DLL 3. Pack a group of modules 4. Use C to write and link to the pyth

ModuleIn the development of computer programs, as the program code more and more, in a file code will be more and more long, more and more difficult to maintain.In order to write maintainable code, we grouped many functions into separate files so that each file contained relatively few code, and many programming languages used this kind of organization code, in Python, a. py file is called a module.Benefits of using modulesThe greatest benefit of using the module first is that it greatly improve

Add new modules to httpd and add modules to httpd Sometimes, due to special requirements, you need to add some additional modules to the installed httpd. In this case, you need to use the apxs tool in httpd-devel. To use this extension mechanism, your platform must support the DSO feature, that is, Apache httpd must have a built-in mod_so module. The method for a

There are 2 ways to define a module in Requirejs: Simple key-value pairs and functional dependencies.1. simple Key-value pairs : A module contains only value pairs, no dependenciesDefine ({ color: "Black", size:1, method1:function () {}, method2:function () {}});This kind of writing is simple, but there are a lot of limitations, just define the module's return value, do not do some additional initialization work.It is more flexible to define modu