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Python Articles
Page 34 of 852
Python program to rotate doubly linked list by N nodes
When it is required to rotate a doubly linked list by a specific number of nodes, a ‘Node’ class needs to be created. In this class, there are three attributes, the data that is present in the node, the access to the next node of the linked list, and the access to the previous node of the linked list.Below is a demonstration for the same −Exampleclass Node: def __init__(self, my_data): self.previous = None self.data = my_data self.next = None class double_list: def __init__(self): self.head = None ...
Read MorePython Program to Create a Class and Compute the Area and the Perimeter of the Circle
When it is required to find the area and perimeter of a circle using classes, object oriented method is used. Here, a class is defined, and attributes are defined. Functions are defined within the class that perform certain operations. An instance of the class is created, and the functions are used to find the area and perimeter of the circle.Below is a demonstration for the same −Exampleimport math class circle_compute(): def __init__(self, my_radius): self.radius=my_radius def area_calculate(self): return math.pi*(self.radius**2) def perimeter_calculate(self): return 2*math.pi*self.radius my_result = int(input("Enter the radius of ...
Read MorePython program to search an element in a doubly linked list
When it is required to search for an element in a doubly linked list, a ‘Node’ class needs to be created. In this class, there are three attributes, the data that is present in the node, the access to the next node of the linked list, and the access to the previous node of the linked list.Another class needs to be created that would have an initialization function, and the head of the node would be initialized to ‘None’ inside this.Multiple methods are defined by the user to add node to the linked list, to display the nodes it and ...
Read MoreHow to get Subtraction of tuples in Python
When it is required to subtract the tuples, the 'map' method and lambda function can be used.The map function applies a given function/operation to every item in an iterable (such as list, tuple). It returns a list as the result.Anonymous function is a function which is defined without a name. In general, functions in Python are defined using 'def' keyword, but anonymous function is defined with the help of 'lambda' keyword. It takes a single expression, but can take any number of arguments. It uses the expression and returns the result of it.Below is a demonstration of the same −Examplemy_tuple_1 ...
Read MoreCheck for None Tuple in Python
When it is required to check for 'None' value in a tuple, the 'all' method and the generator expression can be used.The 'all' method checks to see if all the values inside an iterable are True values. If yes, it returns True, else returns False.Below is a demonstration of the same −Examplemy_tuple_1 = (None, None, None, None, None, None, None ) print ("The tuple is : " ) print(my_tuple_1) my_result = all(elem is None for elem in my_tuple_1) print("Does the tuple contain only None values ? ") print(my_result)OutputThe tuple is : (None, None, None, None, None, None, ...
Read MoreCount the elements till first tuple in Python
When it is required to count the elements up to the first tuple, a simple loop, the 'isinstance' method, and the 'enumerate' method can be used.Below is a demonstration of the same −Examplemy_tuple_1 = (7, 8, 11, 0 ,(3, 4, 3), (2, 22)) print ("The tuple is : " ) print(my_tuple_1) for count, elem in enumerate(my_tuple_1): if isinstance(elem, tuple): break print("The number of elements up to the first tuple are : ") print(count)OutputThe tuple is : (7, 8, 11, 0, (3, 4, 3), (2, 22)) The number of elements up to the first tuple ...
Read MoreConvert tuple to adjacent pair dictionary in Python
When it is required to convert a tuple to an adjacency pair dictionary, the 'dict' method, the dictionary comprehension, and slicing can be used.A dictionary stores values in the form of a (key, value) pair. The dictionary comprehension is a shorthand to iterate through the dictionary and perform operations on it.Slicing will give the values present in an iterable from a given lower index value to a given higher index value, but excludes the element at the higher index value.Below is a demonstration of the same −Examplemy_tuple_1 = (7, 8, 3, 4, 3, 2) print ("The first tuple is ...
Read MoreFind Dissimilar Elements in Tuples in Python
When it is required to find dissimilar elements in tuples, the 'set' operator and the '^' operator can be used.Python comes with a datatype known as 'set'. This 'set' contains elements that are unique only.The set is useful in performing operations such as intersection, difference, union and symmetric difference.The '^' operator is a bitwise operator that performs the 'XOR' operation. It sets every bit to 1 if only one of the two bits is 1.Below is a demonstration of the same −Examplemy_tuple_1 = ((7, 8), (3, 4), (3, 2)) my_tuple_2 = ((9, 6), (8, 2), (1, 4)) print ("The ...
Read MoreConvert tuple to float value in Python
When it is required to convert a tuple to a float value, the 'join' method, 'float' method, 'str' method and generator expression can be used.Generator is a simple way of creating iterators. It automatically implements a class with '__iter__()' and '__next__()' methods and keeps track of the internal states, as well as raises 'StopIteration' exception when no values are present that could be returned.The 'float' method converts a given element to float data type.The 'str' method converts the given element into string data type.Below is a demonstration of the same −Examplemy_tuple_1 = ( 7, 8) print ("The first tuple ...
Read MoreFlatten Tuples List to String in Python
When it is required to flatten a list of tuples into a string format, the 'str' method and the 'strip' method can be used.A list can be used to store heterogeneous values (i.e data of any data type like integer, floating point, strings, and so on).A list of tuples basically contains tuples enclosed in a list. The 'strip' method will remove the specific character/value. The 'str' method will convert the given data type into a string data type.Below is a demonstration of the same −Examplemy_list = [(11, 14), (54, 56), (98, 0), (13, 76)] print("The list is : ") ...
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