Analysis of the Creation method and particularity of Python tuples

Python tuples can help us easily implement certain functional requirements in practical applications. Here we will describe some basic content to give you a detailed introduction to the correct application method of Python tuples, hoping to help you.

Create and access

 
 

  
  
>>> mytuple=(1,2,3,4,'a')  
  
  
>>> mytuple  
  
  
(1, 2, 3, 4, 'a')  
  
  
>>> tuple('abcdefg')  
  
  
('a', 'b', 'c', 'd', 'e', 'f', 'g')  
  
  
>>> mytuple[0]  
  
  
1  
  
  
>>> mytuple[1:4]  
  
  
(2, 3, 4)  
  
  
>>> id(mytuple)  
  
  
19758944  
  
  
>>> mytuplemytuple=mytuple+('b','c')  
  
  
>>> mytuple  
  
  
(1, 2, 3, 4, 'a', 'b', 'c')  
  
  
>>> id(mytuple)  
  
  
19840112  
  
  
>>> 
 
 

Operation

 
 

  
  
>>> mytuple =(1,2,3)  
  
  
>>> mytuple *2  
  
  
(1, 2, 3, 1, 2, 3)  
  
  
>>> 1 in mytuple  
  
  
True  
  
  
>>> 4 not in mytuple  
  
  
True  
  
  
>>> len(mytuple)  
  
  
3  
  
  
>>> (1,2)==(2,1)  
  
  
False  
  
  
>>> 
 
 

Special

1) immutable

 
 

  
  
>>> mytuple=(1,2,3)  
  
  
>>> id(mytuple)  
  
  
19773760  
  
  
>>> mytuple+=('a','b')  
  
  
>>> id(mytuple)  
  
  
19758944  
  
  
>>> 
 
 

Default Python tuples

1) all objects separated by commas (,) are not clearly defined by symbols.

 
 

  
  
>>> 1,2,3,'a'  
  
  
(1, 2, 3, 'a') 
 
 

2) Multiple objects returned by all functions

 
 

  
  
>>> def f():  
  
  
return 1,2,3  
  
  
>>> f()  
  
  
(1, 2, 3) 
 
 

Single Object Python tuples

 
 

  
  
>>> a=('a')  
  
  
>>> type(a)  
  
  
< type 'str'> 
  
  
>>> 
 
 

To create a single object tuples, follow these steps:

 
 

  
  
>>> a=('a',)  
  
  
>>> type(a)  
  
  
< type 'tuple'> 
 
 

List and Python tuples

The tuples are immutable and will not be tampered.

The list and metadata can be converted to each other.

 
 

  
  
>>> mytuple=(1,2,3)  
  
  
>>> mytuple  
  
  
(1, 2, 3)  
  
  
>>> mylist=list(mytuple)  
  
  
>>> mylist  
  
  
[1, 2, 3]  
  
  
>>> tuple(mylist)  
  
  
(1, 2, 3) 
 
 

The above is our introduction to the concepts related to Python tuples.