'FURL' Class Library in -depth analysis: flexibly handle the URL path and query string
‘Furl’ Library in -depth analysis: flexibly handle the URL path and query string
‘Furl’ is a Python class library for processing URL paths and query string.It provides flexible and simple methods to analyze, build and operate URLS, enabling developers to easily process URL -related operations and data.
In this article, we will explore the functions and usage of the "FURL 'class library, and provide related programming code and configuration information.
1. Install and import the ‘Furl’ class library
First, we need to install the ‘Furl’ library.You can use the PIP command for installation:
pip install furl
Then, introduce the "FURL" library in the Python code:
python
import furl
2. Analyze URL
The ‘FURL’ library allows us to analyze URL as part of it, such as protocols, hosts, paths, query parameters, etc.The following is an example code:
python
url = furl.furl('http://example.com/path?param1=value1¶m2=value2')
Print (url.scheme) # Output: http
Print (url.host) # Output: example.com
Print (url.path) # Output:/PATH
Print (url.args) # Output: {'param1': 'value1', 'param2': 'value2'}
In this example, we created a ‘Furl’ object to pass the URL to it.Then we can get different parts of the URL by accessing the corresponding attributes.
3. Build URL
The "Furl" library also allows us to build a URL as needed.The following is an example code:
python
url = furl.furl()
url.scheme = 'https'
url.host = 'example.com'
url.path = '/path'
url.args['param1'] = 'value1'
url.args['param2'] = 'value2'
Print (url.url) # Output: https://example.com/path? Param1 = value1 & param2 = value2
In this example, we first created an empty ‘Furl’ object.Then, we use the attribute setting method to gradually build the required URL structure.Finally, we can obtain the built URL string by accessing the ‘url’ attribute.
4. Modify the URL
The ‘Furl’ library also provides a method to modify the URL.The following is an example code:
python
url = furl.furl('http://example.com/path?param1=value1¶m2=value2')
url.args['param1'] = 'new_value1'
del url.args['param2']
url.path.segments.append('subpath')
Print (url.url) # Output: http://example.com/path/subpath? Param1 = New_value1
In this example, we first created a ‘FURL’ object and carried out a series of modification operations.We demonstrate some common methods of modifying URL by modifying query parameters, deleting query parameters, and adding path fragments.Finally, we can obtain the modified URL string by accessing the ‘url’ attribute.
5. Other functions
The ‘Furl’ library also provides many other functions, such as judging the legality of URL, processing URL coding, and processing fragment identifiers.You can check the official document of 'FURL' to learn more details.
In summary, the "FURL" library is a powerful tool that can be used to flexibly handle the URL path and query string.It provides simple and intuitive methods to analyze, build and modify the URL, so that developers can easily process URL -related operations and data.
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