Question 196876 in Visual Studio Code Question posted in
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Visual Studio Code – Why does VS Code show the word "function" as a class?

My VS Code colors the word function distinctively and says it’s a class:

enter image description here

But it behaves like a regular name such as foo. It’s also not a built-in class, as calling it raises a NameError exception.

Does the function word has any special meaning?

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3

Answers


  1. 0

    Python offers a keyword module that can list both hard and soft keywords present in a language – function is not among them.

    import keyword
print(keyword.kwlist)
print(keyword.softkwlist)
print('function' in (keyword.kwlist + keyword.softkwlist)) # False
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  2. 0

    function is not a reserved word, please see below according to the python documentation, please refer below.

    https://docs.python.org/3/library/keyword.html?highlight=keywords

    https://github.com/python/cpython/blob/3.11/Lib/keyword.py

    This module allows a Python program to determine if a string is a keyword or soft keyword.

    keyword.iskeyword(s)
    Return True if s is a Python keyword.

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  3. 0

    Here is the list of keywords:

    https://docs.python.org/3/reference/lexical_analysis.html?highlight=keywords#keywords

    Answer is no. You can e.g. use function as an identifier.

    >>> function = 5
>>> function
5

    E.g. def or if are keywords and you can not do so.

    >>> if = 5
  File "<stdin>", line 1
    if = 5
       ^
SyntaxError: invalid syntax
>>> def = 6
  File "<stdin>", line 1
    def = 6
        ^
SyntaxError: invalid syntax

    It is also not a built-in identifier as is e.g. print or map:

    $ python
Python 3.10.6 (main, May 29 2023, 11:10:38) [GCC 11.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> function
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'function' is not defined
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