CONVERT STRING TO LIST PYTHON HOW TO
CONVERT STRING TO LIST PYTHON CODE

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. The other 4 methods have their own importance in different situations.A string in python is an ordered sequence of characters. The join() method is most commonly used to convert a list to a string.

CONVERT STRING TO LIST PYTHON HOW TO

Summarising this article, we have learned how to convert a list to a string in Python using 5 different methods. Print(reduce(lambda a, b: a + ' ' + b, items))

Using separator to join the elements using reduce() function. Note: Apply the reduce() function only when the list contains either only strings or only numbers. In the above example, the reduce() function accepts a lambda function as an argument that concatenates the elements of the list. The function is applied to each element of the list and the result is returned as a single value. The reduce() function takes two arguments: a function and a list. To use the reduce() function you have to import the functools module. The reduce() method is used to reduce a list to a single value. Here is an example with hetrogeneous list. Here we will use str() as a function to convert the numbers in the list to strings. The function is applied to each element of the list and the result is returned as a list. The map() function takes two arguments: a function and a list.

If you have a heterogeneous list like a list of strings and numbers mixed in the list and you want to convert them to strings.

If you have a list of numbers and you want to convert them to strings.

The map() method can be used in similar cases as above: This can also be used when you have heterogeneous data like a list of strings and numbers mixed in the list. In the above example, list comprehension converts the numbers in a list to strings, and then the join() method joins the elements of the list to a string. TypeError: sequence item 0: expected str instance, int foundįirst, convert the number to a string using the str() method. So first we need to convert the number to a string and then apply the join() method. The join() method shows a TypeError error because we are trying to join a string with a number. List comprehension is used when you have a number as an element in the list.

Using List comprehensionĪnother way to convert a list to a string is to use list comprehension. To add a separator just as we did in the join() method add a separator string at the end of the element. So elements of the list are joined together without any separator. In the above example, we are not using a separator. Here is an example to convert a list to a string using for loop. To convert a list to a string, loop through the list items of the list and concatenate them with a separator or without a separator as you wish. items = Īnother way to convert a list to a string is to use a loop.

Here is another example that joins the elements of the list with different separators like space, comma, dash, etc. So elements of the list are joined together with nothing in-between. In the above example separator is an empty string. 'sequence' is the list that we want to join. Here 'string' is the string that we want to join the elements of the list with. The join() method is a string method in Python that joins the elements of the given list with a separator into a string. Table Of Contents - Convert List To String Python

CONVERT STRING TO LIST PYTHON CODE

Look at the code above, the separator is a space that's why elements of the list are joined together with a space in-between. Here is an example to convert a list to a string. The method will join the elements of the list with the separator and return the string. The easiest and quickest way to convert a list to a string is to use the join() method.Ĭall the join() method on a separator and pass the list as an argument. Quick Solution - Convert List To String Python For example, we need to store the list in a file and then read the list from the file, or we need to display the list, etc. We need to convert a list to a string while programming for many reasons. In this article, you will learn 5 ways to convert list to string in Python.

Convert string to list python