What are the Python data type conversion functions?

Python data type conversion functions include: 1. int() function; 2. float() function; 3. str() function; 4. list() function; 5. tuple() function; 6. dict() function; 7. set() function; 8. bytes() function; 9. complex() function. Detailed introduction: 1. int() function, this function is used to convert a number or a string with a numeric value into an integer; 2. float() function, this function is used to convert a number or string, etc.

The operating system for this tutorial: Windows 10 system, Python version 3.11.4, DELL G3 computer.

In Python, you can use a variety of functions to convert data types. The following are some commonly used data type conversion functions:

1, int(): This function is used to convert a number or a string with a numeric value into an integer. For example:

x = int(2.8)   # x will be 2  
y = int("3")   # y will be 3

2, float(): This function is used to convert a number or string into a floating point number. For example:

x = float(2)     # x will be 2.0  
y = float("3.5") # y will be 3.5

3, str(): This function is used to convert other data types to strings. For example:

x = str(2)      # x will be "2"  
y = str(3.5)    # y will be "3.5"

4, list(): This function is used to convert an iterable object (such as a tuple or string) into a list. For example:

x = list((1, 2, 3)) # x will be [1, 2, 3]  
y = list("hello")  # y will be ['h', 'e', 'l', 'l', 'o']

5, tuple(): This function is used to convert an iterable object into a tuple. For example:

x = tuple([1, 2, 3]) # x will be (1, 2, 3)

6, dict(): This function is used to create a dictionary. It can construct a dictionary from a nested sequence of key-value pairs. For example:

x = dict([(1, 'one'), (2, 'two')]) # x will be {1: 'one', 2: 'two'}

7, set(): This function is used to convert an iterable object into a set. For example:

x = set([1, 2, 3, 3]) # x will be {1, 2, 3}

8, bytes(): This function is used to convert an object into a bytes object. For example:

x = bytes([1, 2, 3]) # x will be b'\x01\x02\x03'

9, complex(): This function is used to create a complex number. For example:

x = complex(1, 2) # x will be (1+2j)

The above are some basic functions for data type conversion in Python. It should be noted that some data types (such as dictionaries and custom objects) may not have built-in conversion methods. In this case, you may need to define the conversion method yourself or use a third-party library (such as pandas) to perform conversion.

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