cfp modules

cryptographic related operations, in lieu of the MD5 module and the SHA module, mainly providing MD5 (), SHA1 (), sha224 (), sha256 (), sha384 (), sha512 () algorithmThe main methods are. Update (ARG); Digest (); Hexdigest (); Copy ()1 ImportHashlib2 3obj =hashlib.md5 ()4Obj.update (Bytes ('What a fucking day', encoding='Utf-8'))#==> obj.update (b ' What a fucking day ')5 Print(Obj.digest ())6 Print(Obj.hexdigest ())#16 binary form display7 8 #Results:9B'2\x1d\x86\xc6\x17\xb5\xa2]\x81\x02ec\xc4

urllib.requestimport jsonimport jsonpath# Pull Hook net city json file URL = ' Http://www.lagou.com/lbs/getAllCitySearchLabels.json ' # user-agent header = {' user-agent ': ' Mozilla /5.0 (Windows NT 6.1; WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/39.0.2171.71 safari/537.36 '}# URL, together with headers, constructs the requests request, which will be shipped with Chrome browser user-agentrequest = urllib.request.Request (url, headers = header) # Send this request to the server respon

. Popen (' ls-l ', shell=true) 3 #subprocess. Popen ([' ls ', '-l '])Controlling child processes1 s.poll () # Checking child process Status 2 S.kill () # terminating child process 3 s.send_signal () # Sending signal to child process 4 s.terminate () # terminating child process 5 S.pid: Child process numberSub-process output flow controlYou can change standard input, standard output, and standard errors when Popen () is established, and can take advantage of subprocess. Pipes connect the inputs a

(Re.search (' \dcom ', ' www.4comrunoob.5com '). Group ()) The execution results are as follows: 4com (3). Re. FindAll ()Re.findall traversal matches, you can get all the matching strings in the string and return a list.Format:Re.findall (Pattern, string, flags=0)p = re.compile (R ' \d+ ')Print (P.findall (' O1n2m3k4 ')) The execution results are as follows: [' 1 ', ' 2 ', ' 3 ', ' 4 '] (4). Some points of attention: (1) The difference between Re.match and Re.search and Re.findall:Re

j in IP: # # #循环列表Myping (j)#################################################Multi-process [each process, has its own memory]Multithreading [Share a piece of memory]Multi-threaded ping host faster than above#!/usr/bin/python#coding: Utf-8Import threadingImport subprocessdef myping (x):M=subprocess.call (' ping-c2%s >/dev/null '%x,shell=true)If m==0:Print '%s is up '%xElsePrint '%s is down '%xip=[' 176.121.205.%s '%i for I in Xrange (1,254)]For-J in IP:A=threading. Thread (Target=myping,args=[j]

several near-standard module-level "Magic" variable names that are often used. Although those document rules are less formal, almost all third party modules and standard module documents use the same pattern. Let's look at a simplified example that uses most of the elements:Listing 1: module with a typical document mymod.py #!/usr/bin/python "" "show off features of [Pydoc] module ' a silly module to demonstrate docstrings "" "" "" _

Web Crawl Web sites use HTML descriptions, which means that each Web page is a structured document. Sometimes it is useful to get data from it while maintaining its structure. Web sites do not always provide their data in an easy-to-handle format, such as CSV or JSON. This is the time for the web to crawl out. Web crawling is the practice of using a computer program to collect and organize Web page data into the desired format while preserving its structure. lxml and requestslxml (http://lxml.

Python functions and modules, Python function modulesIntroduction Function concepts also exist in python. Standard functions can be called built-in functions, which can be called directly by function names. However, some other built-in functions cannot be called directly through the function name, such as the floor function (rounded down). Then we need to use the module; this article mainly introduces math and cmath. Python version: 3.4.4 Built-in fu

, it exists in the lifetime of the program, and the data value in the class instance exists in the object's lifetime, and it is created with the object's creation, Disappears with the object's revocation. Finally, when a variable is declared public in a standard module, it is visible anywhere in the project, while the public variable in the class module is accessible only if the object variable contains a reference to a class of instances.In general, classes are used in the following two situati

addition, there are several "magic" variable names near the standard module level that are often used. Although those document rules are less formal, almost all third-party modules and standard module documents use the same pattern. Let's look at a simplified example that uses most of the elements:Listing 1: module mymod.py with typical documentation #!/usr/bin/python "" Show off features of [Pydoc] Modulethis is a silly module todemonstrate docstri

JSON and pickle modules, two modules for serializationJSON module for conversion between a string and a Python data typePickle Module for conversion between Python-specific types and Python data typesTwo modules, all available with dumps,dump,loads,load 4 functions1 ImportJSON2s ='{"Key1": "Value1", "Key2": "Value2"}' #==> use JSON

Common gnuradio modules and gnuradio modules --- Restore content start --- Reference: http://gnuradio.org/redmine/projects/gnuradio/wiki/TutorialsWritePythonApplications Statement of the import module from gnuradio import MODULENAME Common modules include the following The main gr gnuradio library, basically used by every program Functions related to analog signa

modulesIn Python, the installation of a third-party module is done through the Package management tool PIP.If you are using Mac or Linux, install the PIP itself this step can be skipped.Commands for installing Pillow: PIP3 Install PillowIf you do not want to use PIP one installation time and effort, but also need to consider compatibility. Can be directly used anaconda, which is a python-based data processing and scientific computing platform, it has built up a number of very useful third-party

Requirejs is a simple JavaScript framework that supports modular coding and asynchronous loading of modules.In the Requirejs module can be divided into: Anonymous module and named module of these 2 kinds.Requirejs Defining an anonymous moduleDefine (function () { Requirejs defining a named ModuleDefine ("Constantmodule", [],function () { Requirejs Official Online also said: It is normally best to avoid coding in a name for the module and just let the optimization tool burn I n the module names

Explanation of common modules in python 1. Explanation of python modules 1.Time Module Import times = time. localtime () # convert the time to the formatted time. get the time in struct_time format, such as year, month, and day. struct_time (maid = 2018, tm_mon = 3, tm_mday = 11, tm_hour = 19, tm_min = 53, tm_sec = 31, tm_wday = 6, tm_yday = 70, tm_isdst = 0) s = time. gmtime () # UTC time zone s = time. ti

Python learning notes (3) import and reload Python modules and modules A module is a core concept of the Python program architecture. A large program is usually presented in the form of multiple module files. A module is designed as a master file or a top-level file to start the entire Python program. Each Python source code file suffixed with. py is a module. Other files can read the content of this module

Time and datetime modules in Python are modules in the temporal contextOne, Time moduleThere are three types of time-performance formats in the Times module:1, timestamp: Timestamp, time stamp represents the offset in seconds from January 1, 1970 00:00:002, Struct_time: Time tuple, a total of nine element groups.3. Format time: Formatting times, formatted structure makes time more readable. Includes custom

View the list of modules supported by the host minion001Sys.list_modules[[emailprotected]~]#salt ' minion001 ' sys.list_modulesminion001: -acl-aliases-alternatives -apache-archive-at -blockdev-bridge-buildout -cloud-cmd-composer -config-cp-cron -daemontools-data-defaults -dig-disk-django -dnsmasq-dnsutil- Environ-etcd-event-extfs -file-gem-genesis- grains-group-grub- hashutil-hg-hosts- img-incron-ini- introspect-ip-iptables -key-kmod-locale -locate-lo

Simple use of regular expressions, common use of OS modules, and regular expression of OS modules Simple use of regular expressions 1 import re 2 origin = "3-5*6 + (20-3-4 * (30/5-5) * 6) + (5*6-7 * (20-2)-(8*8) + 195 "3 def f (str): 4 ss = eval (str) 5 return ss 6 while True: 7 res = re. split ("\ ([^ ()] +) \)", origin, 1) 8 if len (res) = 3: 9 befor, mid, after = res10 ret = f (mid) 11 print (type (b

Front Entrance file index.phpBackground entry file admin.phpThis kind of words URL can easily remove the module name, no need to configure the configuration file configuration what default module, what module list,, haha. I've tried it, unless you just have a module, and, assuming there are multiple modules, it's best to configure like me ....thinkphp3.2 defining multiple modules and setting default