例如,文件不存在、XML格式错误等问题。为了增加程序的健壮性,我们可以使用异常处理机制。 import xml.etree.ElementTree as ET try: tree = ET.parse('nonexistent.xml') root = tree.getroot() except FileNotFoundError: print('File not found!') except ET.ParseError: print('XML parsing error!') else...
XML Copy b = np.reshape(b, (3,1)) The NumPy library has many functions that can manipulate arrays and matrices. For example, the flatten function will convert a matrix to an array. Now, as it turns out, the SciPy matrix multiplication function is smart enough to infer what you inte...
XML parsing C library - development kit libbluetooth-dev[linux-any] Development files for using the BlueZ Linux Bluetooth library locales[除 armel avr32 hppa ia64 mipsel] GNU C Library: National Language (locale) data [support] libsqlite3-dev ...
cssutils - A CSS library for Python. html5lib - A standards-compliant library for parsing and serializing HTML documents and fragments. lxml - A very fast, easy-to-use and versatile library for handling HTML and XML. markupsafe - Implements a XML/HTML/XHTML Markup safe string for Python. ...
For example, you can do graphics and game programming in Python with the pygame system; image processing with the PIL package and others; robot control programming with the PyRo toolkit; XML parsing with the xml library package, the xmlrpclib module, and third-party extensions; AI programming ...
tree = ET.parse('nonexistent.xml') root = tree.getroot()exceptFileNotFoundError:print('File not found!')exceptET.ParseError:print('XML parsing error!')else:# 正常处理XML文件内容forelementinroot:print(element.tag) 在上面的例子中,我们使用try和except块捕获了文件不存在和XML解析错误的异常,以确...
很多时候,需要从各种格式的数据文件中提取信息。这包括 CSV 文件、JSON 文件、XML 文件等等。Pyparsing 可以轻松解析这些数据文件,以便后续处理或分析。 from pyparsing import Word, nums, delimitedList, Group # 解析简单的CSV文件 csv_data = """Name, Age, City ...
ExampleRead XML File in Python To read an XML file, firstly, we import the ElementTree class found inside the XML library. Then, we will pass the filename of the XML file to theElementTree.parse()method, to start parsing. Then, we will get the parent tag of the XML file usinggetroot...
它建立在HTML或XML解析器之上,提供了用于迭代、搜索和修改解析树的Python风格的习语。这使得Beautiful Soup成为用于数据工程领域的流行Python库,因为它易于使用,允许开发者轻松地从非结构化的来源提取和操作数据。 PyPI页面:pypi.org/project/beauti 主页:crummy.com/software/Bea 七、 机器学习和深度学习库 7.1 库:...
UWSGI_PROFILE_OVERRIDE="ssl=false;xml=expat" pip install uwsgi Caveat: libexpat is supposedly slower than libxml2 (based on some old benchmarks found around the Internet), so if you're a heavy user of uWSGI features that depend on an XML parsing library, this may affect performance of yo...