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The main content of this article is to explain "what is the structure of python list derivation". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what is the structure of python list derivation"?

1. The list-derived structure is contained in square brackets, an expression, followed by a for clause, followed by zero or more for or if clauses.

2. The result will be a new list that evaluates expressions based on the contents of the for and if clauses.

Example

From collections import Counter def filter_unique (lst): temp_list = [] for item, count in Counter (lst). Items (): if count > 1: temp_list.append (item) return temp_list # EXAMPLESfilter_unique ([1, 2, 2, 3, 4, 4, 5]) # [2, 4] what is Python used to do what Python is mainly used to:

1. Web development

2. Data science research

3. Web crawler

4. Embedded application development

5. Game development

6. Desktop application development.

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