Python

For Python character translation, use "\" to connect Long Python strings, and add "\" at the end of each line. Escape letter: "\" Code highlighting produced by Actipro CodeHighlighter

This article describes how to obtain a list through the glob module. However, due to the limited regular expressions that glob can use, it can only be said that some tasks have been completed, inspired by reading "Python technical reference book"

1. Read the log file from the server (\ URL \ server_errors.log) The log format we need is: Date and Time level, such as 23:33:28, 140 Error There are two methods: First, use readlines () to loop through a text file Second, use the fileinput

To use a regular expression to obtain any characters in a text segment, write the following matching rules: (.*) After the result is run, the text after the line break cannot be obtained. So I checked the manual and found that in the regular

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->1 >>> str_ascii = 'Hello! ' 2 >>> str_unicode = U' hello! ' 3 >>> str_utf8 = str_unicode.encode ('utf-8 ') 4 >>> str_ascii 5' \ xc4 \ xe3 \ xba \ xc3! '

Install Python SDK in Windows -------------------------------------------------------------------------------- There are many graphical development kits in Python, including tcl/tk, wxPython, PyGtk, and PyQt. Qt is the basic tool of KDE, which has

Recipe 3.3. Calculating Time Periods in a Date Range 1. Problem: How can we calculate the interval of days, weeks, months, and years between two dates given to you? 2. solution: The standard module datetime and third-party package dateutil

Both python and lua support closure, but their implementations are different, resulting in different running results. Example Python version 1 def T (): 2 r = [] 3 for I in xrange (10): 4 def f (): 5 return I 6 r. append (f) 7 return r 8 9 t = T (

In the third and fourth sections, we mainly discuss the precautions in the specific programming and development practices. Compared with the first and second sections, these are more specific and specific to variables. If a novice programmer reads

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->#! /Usr/bin/python # _ * _ Coding: UTF-8 _*_ # The use of 2-tuple Fruit1 = ("apple", "banana ") Fruit2 = ("grape", "orange ") Tuple1 = (fruit1, fruit2)

Recently, a project on natural language processing needs to process a large amount of corpus text, and a script like python has unparalleled advantages in processing strings, so I read this book. The following are some problems encountered during

Processing the pop-up window in Selenium is a tricky issue. Let's talk about how to use Python to handle the pop-up window. The simplest method is to create a pop-up window and use the get_all_window_names and select_window methods.  

Lxml takes all the pain out of XML.Stephen Richter Lxml is the most abundant and easy-to-use library for working with XML and HTML in Python. Lxml is a Python-based binding between libxml2 and libxslt libraries. What makes it different is that it

Apply function: The apply (func [, args [, kwargs]) function is used to call a function indirectly when a function parameter already exists in a tuple or dictionary. Args is a tuple that contains parameters that will be provided to the function by

1. Download Selenium RC and decompress it to drive C. 2. Copy selenium. py to C: \ Python26 \ Lib \ site-packages under C: \ selenium-remote-control-1.0.1 \ selenium-python-client-driver-1.0.1 3. Now the recorded or Handwritten script can interact

Checkbox: Use check and is_checked method code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Def test_click_checkbox_with_ischecked (self ): Sel = self. selenium Sel. open (self. TEST_PAGE_URL) Sel.

Serialization: Serialization usually uses the tostring () method to return a string, or ElementTree. write () method to write a file, an object of a class file, or a URL (PUT through FTP or http post ). Both use the same keyword parameter such as

In applications, the configuration file is usually used to define some parameters. For example, the database configuration file is used to record the database string connection, host name, user name, password, and other information. The Windows INI

Parser object: lxml. etree uses the standard parser with the default configuration by default. to configure the parser, you can create your own instance. >>> Parser = etree. XMLParser (remove_blk_text = True) # lxml. etree only! In this example, a

In Selenium project practice, to process different link, button, and other page elements on the page, it is best to write these page elements and their corresponding Xpath into the configuration file. This article attempts to create a custom