Pass Function as Function Parameter

Q

How to pass function objects as function parameters?

✍: FYIcenter.com

A

You can pass function objects like any other types of objects as parameters of other functions.

For example,

>>> def x():
...    print("Hello world!")
...
>>> def addVersion(f):
...     f.version = "1.0"
...     f.author = "FYIcenter.com"
...     return f
...
>>> y = addVersion(x)
>>> x.version
'1.0'
>>> y.version
'1.0'

⇒ What Is Wrapper Function

⇐ '__dict__' Dictionary in Function Object

⇑ Defining Functions in Python

⇑⇑ Python Tutorials

2018-02-08, 1795🔥, 0💬

What Is Wrapper Function
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Pass Function as Function Parameter
How to pass function objects as function parameters? You can pass function objects like any other types of objects as parameters of other functions. For example, >>> def x(): ... print("Hello world!") ... >>> def addVersion(f): ... f.version = "1.0" ... f.au... 2018-02-08, ∼1796🔥, 0💬

Function Parameters Assigned with Object References
Is it true that all function parameters are assigned with object references in Python? Yes, all function parameters are assigned with object references in Python. You modify referenced data objects to share data with the calling statement. Here is a good example of modifying the data object referenc... 2018-02-08, ∼1706🔥, 0💬

Functions Are Objects Too
Are functions objects in Python? Yes, all functions are objects of "function" type in Python? You can verify this with the following Python code: >>> def x(): ... print("Hello world!") ... >>> type(x) <class 'function'> In other words, the "def... 2018-02-08, ∼1692🔥, 0💬

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How to use the "class" statement to define a new function in Python? You can use the "class" statement to define a new class in Python with the following syntax: def class_name(base_class): class properties assignment statement ... method definition statement ... Here is a good example of "class" st... 2018-05-08, ∼1691🔥, 0💬

Function Parameter Default Expression Executed Only Once
Is it true that the function parameter default expression is only executed once in Python? Yes, the function parameter default expression is only executed once in Python when the "def" statement is interpreted. For example, in the following Python code, when the "def profile()" statement is interpre... 2022-10-26, ∼1675🔥, 0💬

'__dict__' Dictionary in Function Object
What is the "__dict__" dictionary property in a function object? By default every function object has "__dict__" built-in dictionary property. Each name value pair in this dictionary becomes a formal property of the function object accessible using the "." operation. It is empty when the function ob... 2018-02-08, ∼1640🔥, 0💬

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