Array in Python | Set 1 (Introduction and Functions)
Other than some generic containers like list, Python in its definition can also handle containers with specified data types. The array can be handled in python by a module named “array“. They can be useful when we have to manipulate only specific data type values.
Operations on Array :
1. array(data type, value list):- This function is used to create an array with data type and value list specified in its arguments. Some data types are mentioned in the table below.
Type Code C Type Python Type Minimum size in Bytes ‘b’ signed char int 1 ‘B’ unsigned char int 1 ‘u’ Py_UNICODE unicode character 2 ‘h’ signed short int 2 ‘H’ unsigned short int 2 ‘i’ signed int int 2 ‘I’ unsigned int int 2 ‘l’ signed long int 4 ‘L’ unsigned long int 4 ‘q’ signed long long int 8 ‘Q’ unsigned long long int 8 ‘f’ float float 4 ‘d’ double float 8
2. append():- This function is used to add the value mentioned in its arguments at the end of the array.
3. insert(i,x) :- This function is used to add the value(x) at the ith position specified in its argument.
The new created array is : 1 2 3 The appended array is : 1 2 3 4 The array after insertion is : 1 2 5 3 4
4. pop():- This function removes the element at the position mentioned in its argument and returns it.
5. remove():- This function is used to remove the first occurrence of the value mentioned in its arguments.
The new created array is : 1 2 3 1 5 The popped element is : 3 The array after popping is : 1 2 1 5 The array after removing is : 2 1 5
6. index():- This function returns the index of the first occurrence of value mentioned in arguments.
7. reverse():- This function reverses the array.
The new created array is : 1 2 3 1 2 5 The index of 1st occurrence of 2 is : 1 The array after reversing is : 5 2 1 3 2 1
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