How to use the urlencode function_What is the usage of the urlencode function?-Python Tutorial-php.cn

How to use urlencode function

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Release： 2023-11-15 11:45:37

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Usage: 1. Used to encode dictionary; 2. Used to encode list; 3. Used to encode nested list; 4. Specify separator, etc.

How to use urlencode function

The urlencode function is used to convert a data structure such as a dictionary or list into a URL-encoded string. Its main purpose is to encode data for transmission in a URL.

The following are some common uses of the urlencode function:

For encoding dictionary:

from urllib.parse import urlencode  
  
params = {  
    &#39;param1&#39;: &#39;value1&#39;,  
    &#39;param2&#39;: &#39;value2&#39;,  
    &#39;param3&#39;: &#39;value3&#39;,  
}  
  
encoded_params = urlencode(params)  
  
print(encoded_params)  # 输出：param1=value1&param2=value2&param3=value3

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For encoding list:

from urllib.parse import urlencode  
  
params = [(&#39;param1&#39;, &#39;value1&#39;), (&#39;param2&#39;, &#39;value2&#39;), (&#39;param3&#39;, &#39;value3&#39;)]  
  
encoded_params = urlencode(params)  
  
print(encoded_params)  # 输出：param1=value1&param2=value2&param3=value3

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For encoding nesting List:

from urllib.parse import urlencode  
  
params = [(&#39;param1&#39;, &#39;value1&#39;), (&#39;param2&#39;, &#39;value2&#39;), (&#39;param3&#39;, [&#39;value3-1&#39;, &#39;value3-2&#39;])]  
  
encoded_params = urlencode(params)  
  
print(encoded_params)  # 输出：param1=value1&param2=value2&param3=value3-1&param3=value3-2

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Specify delimiter:

By default, the urlencode function uses & as the delimiter between arguments. Additional delimiters can be specified using the do_plus parameter, for example using do_plus=True to use as delimiter:

from urllib.parse import urlencode  
  
params = {  
    &#39;param1&#39;: &#39;value1&#39;,  
    &#39;param2&#39;: &#39;value2&#39;,  
    &#39;param3&#39;: &#39;value3&#39;,  
}  
  
encoded_params = urlencode(params, do_plus=True)  
  
print(encoded_params)  # 输出：param1=value1+param2=value2+param3=value3

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