Cara menggunakan convert object int python
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We can convert a Set to List in Python using the built-in list() method. Let’s take a look at some examples using this function. Table of Contents We’ll go over simple methods that will allow the conversion of a python set object to a list object quickly. 1. Using list() FunctionThe list() function takes an iterable as an argument and converts that into a List type object. This is a built-in method ready for you to use. my_list = list(my_iterable) Since a set is also iterable, we can pass it into the my_set = set({1, 4, 3, 5})
my_list = list(my_set)
print(my_list)
The output, as expected, will be a list containing the above values. Note that the order of the list can be random, and not necessarily sorted. For example, take the below snippet. s = set()
s.add("A")
s.add("B")
print(list(s))
Output in my case: 2. Using Manual IterationWe can also manually add the elements to the list since the set is iterable. This method does not have any real-world advantage over using the list() method apart from being written by you. s = set({1, 2, 3})
a = []
for i in s:
a.append(i)
print(a)
Again, the output is a list: Convert a frozenset to a listThe Python frozenset object is similar to a set but is immutable. Therefore, we cannot modify the elements of a frozenset. We can convert this type of set too, using list(). f_set = frozenset({1, 3, 2, 5})
a = list(f_set)
print(a)
Output References
We can convert a string to list in Python using split() function. Python String split() function syntax is: Python Convert String to ListLet’s look at a simple example where we want to convert a string to list of words i.e. split it with the separator as white spaces. Output: If you are not familiar with f-prefixed string formatting, please read f-strings in Python If we want to split a string to list based on whitespaces, then we don’t
need to provide any separator to the split() function. Also, any leading and trailing whitespaces are trimmed before the string is split into a list of words. So the output will remain same for string Output: Python String to List of CharactersPython String is a sequence of characters. We can convert it to the list of characters using list() built-in function. When converting a string to list of characters, whitespaces are also treated as characters. Also, if there are leading and trailing whitespaces, they are part of the list elements too. Output: Output: You can checkout complete python script and more Python examples from our GitHub Repository. Python is one of the most popular programming languages today, and in this tutorial, we will learn various ways to change a list to a string. Apart from this, we will also discuss nuances of Python, including what is a list in python, what is a string, and more. Let’s start. What Is a List in Python?A list in python is an ordered sequence that can hold a variety of object types, such as, integer, character or float. A list in python is equivalent to an array in other programming languages. It is represented using square brackets, and a comma(,) is used to separate two objects present in the list. A list and an array in other programming languages differ in the way that an array only stores a similar data type, meaning that an array is homogeneous in nature, but a list in python can store different data types at a time, and therefore it can either be homogeneous or heterogeneous. Below are some examples of homogeneous and heterogeneous lists in python: Homogenous Lists: Heterogeneous Lists:Accessing an Item From the ListAn item from the list can be accessed by referring to its index in the list. The indexing of elements in the list starts from 0. Let’s take an example of the list we created in the last step. To access an element from the list, we pass the index of that element in the print function. As mentioned earlier, that indexing starts from 0, so when index [1] is passed, it gives the result as “dog”. Similarly, if we pass the index, say [2], it will give the output 2.2 What Is a String in Python?A string in python is an ordered sequence of characters. The point to be noted here is that a list is an ordered sequence of object types and a string is an ordered sequence of characters. This is the main difference between the two. A sequence is a data type composed of multiple elements of the same data type, such as integer, float, character, etc. This means that a string is a subset of sequence data type, containing all elements as characters. Here is an example of string in python and how to print it.
For declaring a string, we assign a variable to the string. Here, a is a variable assigned to the string simplilearn. An element of a string can be accessed in the same way as we saw in the case of a list. The indexing of elements in a string also starts from 0. How to Convert a List to String in Python
The join function is one of the simplest methods to convert a list to a string in python. The main point to keep in mind while using this function is that the join function can convert only those lists into string that contains only string as its elements. Refer to the example below. Here, all the elements in the list are individual string, so we can use the join function directly. Note that each element in the new string is delimited with a single space. Now, there may be a case when a list will contain elements of data type other than string. In this case, The join function can not be used directly. For a case like this, str() function will first be used to convert the other data type into a string and then further, the join function will be applied. Refer to the example given below to understand clearly.
In this example, firstly we declare a list that has to be converted to a string. Then an empty string has to be initialized to store the elements. After that, each element of the list is traversed using a for loop, and for every index, the element would be added to the initialized string. At the end, the string will be printed using the print() function.
The map function can be used in 2 cases to convert a list to a string.
The map() function will accept 2 arguments;
At the end, the join() function is used to combine all the values returned by the str() function.
List comprehension in python generates a list of elements from an existing list. It then employs the for loop to traverse the iterable objects in an element-wise pattern. To convert a list to a string, use Python List Comprehension and the join() function. The list comprehension will traverse the elements one by one, and the join() method will concatenate the list's elements into a new string and return it as output. An example of conversion of list to string using list comprehension is given below.
In this method, Assign a list and traverse each element and add each into an empty string using for loop The code in python is as given below instr= ['Hello', 'How', 'are', 'you', 'doing?'] emptystr = "" # passing in a string for i in instr: emptystr += i +'' print(emptystr) The output will be - Hello How are you doing?
# listToString is a function def listToString(instr): # initialize empty string emptystr="" # string traversal using for loop for ele in instr: emptystr += ele instr = ['Hello', 'How', 'are', 'you', 'doing?'] print(listToString(instr)) The output will be - Hello How are you doing? The article explains two of the data types List,and String in Python language and some ways of converting List to String in Python programming language. All methods have code that has readability and functions that are used often to convert List into String. It is important to understand each of the functions and its use, the syntax used and the developer should have hands-on experience with the expected effect on output using these functions. In all these methods iteration is used to move from one element to the next element in a list and then add each of the elements and convert them as a single string. In case you wish to master the A to Z of Python, enroll in our Python Certification Training today! And in case you have any questions regarding the tutorial, drop a comment below and our experts will help you out. How do you make a list of outputs in Python?To create a list in Python, you place your data items in a comma-separated list, enclosed between two square brackets or “[].” Lists are “ordered” in the sense that, once that list is created, the order of the items does not change. How do you convert data into a list in Python?Given a set, write a Python program to convert the given set into list. Approach #1 : Using list(set_name) . Typecasting to list can be done by simply using list(set_name) . Using sorted() function will convert the set into list in a defined order. How do you turn text into a list in Python?To convert string to list in Python, use the string split() method. The split() is a built-in method that splits the strings and stores them in the list. What does Tolist () do in Python?The tolist() function is used to convert a given array to an ordinary list with the same items, elements, or values. |
