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Python Articles
Page 63 of 855
How to convert int to string in Python?
Type conversion is at times needed when the user wants to convert one data type into another data type according to requirement.Python has in-built function str() to convert an integer to a string. We will be discussing various other methods in addition to this to convert int into string in Python.Using str()This is the most commonly used method to convert int into string in Python.The str() takes integer variable as a parameter and converts it into a string.Syntaxstr(integer variable)Examplenum=2 print("Datatype before conversion", type(num)) num=str(num) print(num) print("Datatype after conversion", type(num))OutputDatatype before conversion 2 Datatype after conversion The type() function gives ...
Read MoreWrite a program to form a cumulative sum list in Python
The cumulative sum till ith element refers to the total sum from 0th to ith element.The program statement is to form a new list from a given list. The ith element in the new list will be the cumulative sum from 0 to ith element in the given list.For example, Input[10, 20, 30, 40, 50]Output[10, 30, 60, 100, 150]Input[1, 2, 3, 4, 5]Output[1, 3, 6, 10, 15]Following is a program to form a cumulative sum list using the input list −The input list is passed to the function cumSum() which returns the cumulative sum list.We declare an empty list cum_list ...
Read MoreRemove nested records from tuple in Python
When it is required to remove nested record/tuples from a tuple of tuple, a simple loop and the 'isinstance' method and the enumerate method can be used.The enumerate method adds a counter to the given iterable, and returns it. The 'isinstance' method checks to see if a given parameter belong to a specific data type or not.Below is a demonstration of the same −Exampletuple_1 = (11, 23, (41, 25, 22), 19) print("The tuple is : ") print(tuple_1) my_result = tuple() for count, elem in enumerate(tuple_1): if not isinstance(elem, tuple): my_result = my_result + (elem, ...
Read MoreKth Column Product in Tuple List in Python
When it is required to find the 'K'th column product in a list of tuple, a simple list comprehension and a loop can be used.A tuple is an immutable data type. It means, values once defined can't be changed by accessing their index elements. If we try to change the elements, it results in an error. They are important contains since they ensure read-only access. 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 tuple basically contains tuples enclosed in a list.The list comprehension ...
Read MoreCummulative Nested Tuple Column Product in Python
If it is required to find the cumulative column product of a nested tuple, the 'zip' method and a nested 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 zip method takes iterables, aggregates them into a tuple, and returns it as the result.Below is a demonstration of the same −Exampletuple_1 = ((11, 23), (41, 25), (22, 19)) tuple_2 = ((60, 73), (31, 91), (14, ...
Read MorePython program to sort a list of tuples alphabetically
When it is required to sort a list of tuples in alphabetical order, the 'sort' method can be used. When using this, the contents of the original tuple get changed, since in-place sorting is performed.The 'sort' function sorts the values in ascending order by default. If the order of sorting is specified as descending, it is sorted in descending order.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 tuple basically contains tuples enclosed in a list.Below is a demonstration of the same −Exampledef sort_tuple_vals(my_tup): ...
Read MoreRear element extraction from list of tuples records in Python
If it is required to extract the rear element from a list of tuples, it can be done using list comprehension and negative indexing.The list comprehension is a shorthand to iterate through the list and perform operations on it.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 tuple basically contains tuples enclosed in a list.Below is a demonstration of the same −Examplemy_list = [('Will', 67, 45), ('Jam', 34, 56), ('Pow', 99, 123), ('Nyk', 0, 56)] print ("The list of tuples is : " ...
Read MoreModulo of tuple elements in Python
If the modulo of tuple elements is required to be determined, the 'zip' method and a 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 zip method takes iterables, aggregates them into a tuple, and returns it as the result.Below is a demonstration of the same −Examplemy_tuple_1 = ( 67, 45, 34, 56) my_tuple_2 = (99, 123, 10, 56) print ("The first tuple is ...
Read MorePairwise Addition in Tuples in Python
If it is required to perform pairwise addition in tuples, then the 'zip' method, the 'tuple' method and a generator expression can be used.The zip method takes iterables, aggregates them into a tuple, and returns it as the result.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 'tuple' method converts a given iterable into tuple data type.Below is a demonstration of the same −Examplemy_tuple = ( 67, 45, 34, ...
Read MoreHow to sort a dictionary in Python?
A dictionary is a data structure that consists of key and value pairs. We can sort a dictionary using two criteria −Sort by key − The dictionary is sorted in ascending order of its keys. The values are not taken care of.Sort by value − The dictionary is sorted in ascending order of the values.Method 1 − Sort the dictionary by keyIn this approach, the dictionary is sorted in ascending order of its keys.Input:{2:90, 1: 100, 8: 3, 5: 67, 3: 5}Output:{1:100, 2:90, 3:5, 5:67, 8:3}As shown above, we can see the dictionary is sorted according to its keys.Exampledic={2:90, 1: ...
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