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Python Crawler's scrapy installation

% |████████████████████████████████| 71kB 87kb/scollecting cryptography>=1.9 (from pyopenssl->scrapy) downloading CRYPTOGRAPHY-2.1.2-CP36-CP36M-MANYLINUX1_X86_64.WHL (2.2MB) 100% |████████████████████████████████| 2.2MB 16kb/scollecting zope.interface>=4.0.2 (from twisted>=13.1.0->scrapy) downloading ZOPE.INTERFACE-4.4.3-CP36-CP36M-MANYLINUX1_X86_64.WHL (173kB) 100% |████████████████████████████████| 174kB 20kb/scollecting constantly>=15.1 (from twisted>=13.1.0->scrapy) downloading Constantly-1

Python-scrapy Frame

://pypi.python.org/packages/ec/5f/ d5bc241d06665eed93cd8d3aa7198024ce7833af7a67f6dc92df94e00588/cryptography-1.8.1.tar.gz#md5= 9F28A9C141995CD2300D0976B4FAC3FBtar-xf cryptography-1.8. 1 . tar.gz CD Cryptography/python setup.py buildpython setup.py install5, pyparsing-1.5.7.tar.gzThe Pyparsing module is an alternative to creating and executing simple grammars, with traditional LEX/YACC methods, or using regular expressions. The Pyparsing module provides a class in which the client code constructs

In php, how does one convert a two-dimensional array into an obj array? -Php Tutorial

In php, how does one convert a two-dimensional array into an obj array? How can I convert the array useridinfo to the obj type? I tried new ArrayObject ($ arr [$ key]) and converted the entire result. please help me. Reply to discussion (solution) $a = array( array( 'userIdInfo' => array( 'uid' => '100000113', 'type' => 'ZXIN_IDTYPE::IDNA' ), 'chgCreditValue' => 50 ), array( 'userIdInfo' => array( 'uid' => '10000110', 't

Security considerations: international features

string that might be converted for use as a FAT file name.Security considerations for Internationalized Domain Names Internationalized Domain Names (IDNs) are specified by Network Working Group RFC 3490: internationalizing domain names in applications (Idna). The standard introduces a number of security issues. Glyphs representing certain characters from different scripts might appear similar or even identical. for example, in response fonts, Cyrilli

The adventures of FileZilla installation in Ubuntu

Previously in school often use FileZilla pull source code, and then compile: Prompt NO wxWidgets so and then download wxWidgets, so downloaded from the http://www.wxwidgets.org/the latest version of wxwidgets-2.9.3.tar.bz2, unzip the installation, after installation; compile FileZilla again.Unexpectedly, the following error occurs: configure: error: idna. h not found which is part of GNU libidn.Dizzy ............You can only open configure to check th

MySQL Check redundant index code

INFORMATION_SCHEMA. STATISTICS where table_schema= '%s ' and table_name= '%s ' \and Seq_in_index =%s and column_name in (%s) and index_name in (%s); "% (DB,TNAME,A,COLU,IDX_TW1)In_name = []Index_name = Mysql_conn (HOST,PORT,DB,SQL2)Index_na = [I[0] for i in index_name]if Index_na = = []:ContinueFor Iname in Index_na:In_name.append (Iname)Inname = ' \ ', \ '. Join (In_name)Inname = "\ '" + inname + "\"#第一个位置相同而且有第二个位置的索引名SQL4 = "Select Index_name from INFORMATION_SCHEMA. STATISTICS where table_s

PIP installation Paramiko failed _macos version 10.11.6

being removed by major browsers and deprecated by RFC 2818. (see https://github.com/shazow/urllib3/issues/497 for details.) Subjectaltnamewarning /library/python/2.7/site-packages/pip/_vendor/requests/packages/urllib3/connection.py:303: Subjectaltnamewarning:certificate for pypi.python.org have no ' subjectaltname ', falling back to check for a ' commonname ' F or now. This feature was being removed by major browsers and deprecated by RFC 2818. (see https://github.com/shazow/urllib3/issues/497

Wrk+fabric for cluster deployment and pressure measurement

InstallCd..TAR-XVF enum34-1.1.6.tar.gzCD enum34-1.1.6Python setup.py BuildPython setup.py InstallCd..TAR-XVF six-1.10.0.tar.gzCD six-1.10.0Python setup.py BuildPython setup.py InstallCd..TAR-XVF idna-2.1.tar.gzCD idna-2.1Python setup.py BuildPython setup.py InstallCd..TAR-XVF cryptography-1.6.tar.gzCD cryptography-1.6Export C_include_path=/usr/local/openssl-1.0.2/includeExport Cplus_include_path=/usr/local

Wonderful use of encode and decode

During network programming, you often need to print the received data in hexadecimal format for easy viewing. Today we found that there is such a simple method in Python. >>> "Hello". encode ("hex ")'68656c6c6f' You can also >>> '68656c6c6f'. Decode ("hex ")'Hello' I checked the manual and found these codec available. Codec Aliases Operand type Purpose Base64_codec Base64, base-64 Byte string Convert operand to mime base64 Bz2_codec Bz2 Byte

Summary of new features of. Net Framework versions (1). New Features of the framework

compression to reduce the size of the compressed file. 11). You can customize a reflection context to overwrite the default reflection behavior. The purpose of reflection context is to provide an Attribute for modifying the Member or method of the reflected type at runtime ). for example, add a source code with no attribute, or remove the attribute in the source code. In this way, custom attributes are obtained when attributes of type members or methods are obtained through reflection. Referenc

python--Fifth Day Summary

/backports.ssl_match_hostname-3.4.0.2-py2.7.egg','/usr/local/lib/python2.7/site-packages/certifi-2015.4.28-py2.7.egg','/usr/local/lib/python2.7/site-packages/pyopenssl-0.15.1-py2.7.egg','/usr/local/lib/python2.7/site-packages/six-1.9.0-py2.7.egg','/usr/local/lib/python2.7/site-packages/cryptography-0.9.1-py2.7-macosx-10.10-x86_64.egg','/usr/local/lib/python2.7/site-packages/cffi-1.1.1-py2.7-macosx-10.10-x86_64.egg','/usr/local/lib/python2.7/site-packages/ipaddress-1.0.7-py2.7.egg','/usr/local/li

Install scrapy1.0.4 on Centos6.5

"license" for more information.>>> After libffi-devel is upgraded, because there are too many pitfalls on it, it is directly updated. In this step, select: Sudo yum install update libffi-devel Now the environment is ready, and the following is the pitfall process o Installation failure method: Sudo/usr/local/bin/pip install scrapy There are many errors. The link at the beginning of the reference document cannot be resolved. You can skip this step. The main cause of these pitfalls is the depende

Install cryptography-1.6 under Windows

the PIP installation command to complete immediately. As for no internal source, a source to download to install AH. Dependent libraries are: Cffi, IPAddress, ENUM34, Setuptools, six, PYASN1, Idna, PycparserAll right, get ready, continue with the installation, copy the command below, and paste it under Doc.CD C:\Program Files (x86) \microsoft Visual Studio 9.0\VCVcvarsall.bat X86_AMD64Set lib=c:\usr\local\ssl\lib;%lib%Set include=c:\usr\local\ssl\inc

CENTOS7 scrapy Installation process

.tar.gzCollectingcharacteristic>=14.0.0 ( Fromservice-identity->scrapy) Usingcached characteristic-14.3.0-py2.py3-none-any.whlcollectingpyasn1-modules (fromservice-identity-> Scrapy) usingcachedpyasn1_modules-0.0.8-py2.py3-none-any.whlrequirementalreadysatisfied (use--upgradetoupgrade): NBSP;PYASN1 in/usr/lib/python2.7/site-packages (fromservice-identity->scrapy) requirement alreadysatisfied (use--upgradetoupgrade): idna>=2.0in/usr/lib /python2.7/site

Ejabberd Source Code Parsing Prelude--Overview

continue to run without interruption. Alternatively, you can add or replace nodes ' without downtime '.4. Easy to manageEjabberd is built on open-source Erlang, so there's no need to install external server databases, external Web servers, and so on, because everything is already inside and out of the box. The administrative benefits include:(1) Detailed documentation;(2) Convenient installation program, including Linux, Mac OS x and Windows system;(3) Web management;(4) Share roster group;(5)

C # and various versions and contacts of the. Net Framework

) generation, which can optionally be used in multicore processors to improve application performance.4. Before it times out, it is possible to limit how long the regular expression engine can attempt to resolve a regular expression.5. Ability to define the default culture for the application domain.6.Unicode (UTF-16) encoded console support.7. Sorting and comparing data support for version-controlled culture strings.8. When retrieving resources, improve performance. See packaging and deploying

Python Common Module Learning

/site-packages/tornado-4.1-py2.7-macosx-10.10-x86_64.egg','/usr/local/lib/python2.7/site-packages/backports.ssl_match_hostname-3.4.0.2-py2.7.egg','/usr/local/lib/python2.7/site-packages/certifi-2015.4.28-py2.7.egg','/usr/local/lib/python2.7/site-packages/pyopenssl-0.15.1-py2.7.egg','/usr/local/lib/python2.7/site-packages/six-1.9.0-py2.7.egg','/usr/local/lib/python2.7/site-packages/cryptography-0.9.1-py2.7-macosx-10.10-x86_64.egg','/usr/local/lib/python2.7/site-packages/cffi-1.1.1-py2.7-macosx-10

Summary of new features for each version of the. Net Framework (i)

/system.reflection.context.customreflectioncontext (v=vs.110) . aspx12). When the class System.Globalization. IdnMapping is used on Win8, supports the 2008 version of Idna (internationalized Domain Names in applications). Class System.Globalization. IdnMapping is an Internet domain name that supports non-ASCII encoding.Reference:https://msdn.microsoft.com/en-us/library/system.globalization.idnmapping (v=vs.110). aspx13). When the. Net Framework is run

Differences between versions of the. NET Framework

multicore processors to improve application performance. 4. Before it times out, it is possible to limit how long the regular expression engine can attempt to resolve a regular expression. 5. Ability to define the default culture for the application domain. 6.Unicode (UTF-16) encoded console support. 7. Sorting and comparing data support for version-controlled culture strings. 8. When retrieving resources, improve performance. See packaging and deploying Resources in desktop applications. 9.ZIP

Pip install wechatpy error, pipwechatpy

packages depend on six. When installing six, we find that the system already has a six-1.4.1 but has no permission to uninstall it, therefore, the new version cannot be installed. Six-1.4.1 is the system's built-in packages, becauseSystem integration ProtectionYou have no permission to modify the/System/Library/Frameworks/Python. framework/Versions/2.7/Extras/lib/python/six-1.4.1-py2.7.egg-info directory. The solution is to ignore six installation when installing these packages: sudo pip instal

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