Calling str(...) is the Pythonic way to convert something to a string.
You might want to consider why you want a list of strings. You could instead keep it as a list of integers and only convert the integers to strings when you need to display them. For example, if you have a list of integers then you can convert them one by one in a for-loop and join them with ,:
print(','.join(str(x) for x in list_of_ints))
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Calling str(...) is the Pythonic way to convert something to a string.
You might want to consider why you want a list of strings. You could instead keep it as a list of integers and only convert the integers to strings when you need to display them. For example, if you have a list of integers then you can convert them one by one in a for-loop and join them with ,:
print(','.join(str(x) for x in list_of_ints))
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There's nothing wrong with passing integers to str. One reason you might not do this is that myList is really supposed to be a list of integers e.g. it would be reasonable to sum the values in the list. In that case, do not pass your ints to str before appending them to myList. If you end up not converting to strings before appending, you can construct one big string by doing something like
', '.join(map(str, myList))
Hyperskill
hyperskill.org › university › python › join-method-in-python
Python join() Method: Join Strings from a List (with Examples)
June 5, 2026 - Form a List with a Single String Element: If your input is a single string like "Python", create a list containing that string: ["Python"]. Apply join() to the List: Use the join() method on this list to retrieve the original string.
Python join String with int list - Stack Overflow
What I'm trying to do is to print the reverse number of the input. input = "1 3 4 2" output = "2 4 3 1" I want to know why my code show this error: if __name__ == "__main__": n = 4 arr = ... More on stackoverflow.com
How do I use the .join function on integers?
Say you have a mixed list, you are right, you can't join them: >>> data = ['cat', 1, 'hat', 2] >>> ', '.join(data) Traceback (most recent call last): File "", line 1, in TypeError: sequence item 1: expected str instance, int found So you have to convert all the elements of the list into strings, first: >>> text = [str(x) for x in data] # List comprehension >>> ', '.join(text) 'cat, 1, hat, 2' Or put more succinctly: print(', '.join(str(x) for x in data)) Note that in my short version, I don't use a list comprehension, as the square brackets are missing. Instead I use a very similar "generator expression", which happens to still work for join. https://stackoverflow.com/questions/364802/how-exactly-does-a-generator-comprehension-work More on reddit.com
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February 19, 2020Allow list of integers in `str.join` - Ideas - Discussions on Python.org
I wondered today for the Nth time why the following is not permitted - the intent seems clear enough: · Once I’m calling from a string.join method, what possible other output than a string can be expected? So why not just call __str__() on any members rather than give a type error? More on discuss.python.org
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February 9, 2023Easiest way to join list of ints in Python? - Stack Overflow
What is the most convenient way to join a list of ints to form a str without spaces? For example [1, 2, 3] will turn '1,2,3'. (without spaces). I know that ','.join([1, 2, 3]) would raise a TypeEr... More on stackoverflow.com
GeeksforGeeks
geeksforgeeks.org › python › python-convert-a-list-of-multiple-integers-into-a-single-integer
Python Program to Convert a list of multiple integers into a single integer - GeeksforGeeks
July 11, 2025 - The string formatting f"{i}" converts each integer to a string. ''.join(...) concatenates the strings which is then converted to an integer.
BlueVPS
bluevps.com › blog › python join(): a complete guide to merging lists and python string join
A Complete Guide to Merging Lists and Python String Join | BlueVPS
June 18, 2025 - If the list contains integers or other types, Python will raise a TypeError. ... The Python list join() method is used to combine a list of strings into one single string, inserting a specified separator between each element.
Bobby Hadz
bobbyhadz.com › blog › python-join-integer-list
Join a List of Integers into a String in Python | bobbyhadz
April 8, 2024 - Use the map() function to convert the integers in the list to stings. Call the str.join() method on a string separator.
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You should use much simpler approach:
>>> ''.join(reversed('1 2 3 4'))
'4 3 2 1'
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n = 4
arr = map(int, "1 3 4 2".split())
ar = list(arr)
b=ar.reverse()
string =' '
string=string.join(str(ar))
print(string)
There are some mistakes in your code when you use map with int as a parameter the string is splitted to integers and the join function expects strings
One more thing the string.join function does not change the value of the string it just computes the value. If you want your strings value to be changed you should assign explicitly as in the code I have provided
Reddit
reddit.com › r/learnpython › how do i use the .join function on integers?
r/learnpython on Reddit: How do I use the .join function on integers?
February 19, 2020 -
I have a function that can add commas between lists and print them out as strings
def commaCode(listValue):
listValue.insert(-1, 'and')
NewlistValue = ', '.join(listValue)
print(NewlistValue)Here's the output:
cat, bat, and, sat
But I need this to work for integers as well. (and combinations of strings and integers).
How do I use the .join function on integers?
Top answer 1 of 3
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Say you have a mixed list, you are right, you can't join them: >>> data = ['cat', 1, 'hat', 2] >>> ', '.join(data) Traceback (most recent call last): File "", line 1, in TypeError: sequence item 1: expected str instance, int found So you have to convert all the elements of the list into strings, first: >>> text = [str(x) for x in data] # List comprehension >>> ', '.join(text) 'cat, 1, hat, 2' Or put more succinctly: print(', '.join(str(x) for x in data)) Note that in my short version, I don't use a list comprehension, as the square brackets are missing. Instead I use a very similar "generator expression", which happens to still work for join. https://stackoverflow.com/questions/364802/how-exactly-does-a-generator-comprehension-work
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.join() is a string method, so in order for u to use the .join method on integers , u have to convert those values into a string.
Python.org
discuss.python.org › ideas
Allow list of integers in `str.join` - Ideas - Discussions on Python.org
February 9, 2023 - I wondered today for the Nth time why the following is not permitted - the intent seems clear enough: · Once I’m calling from a string.join method, what possible other output than a string can be expected? So why not just call __str__() on any members rather than give a type error?
Finxter
blog.finxter.com › home › learn python blog › 5 best ways to join a list of integers to a string in python
5 Best Ways to Join a List of Integers to a String in Python - Be on the Right Side of Change
February 24, 2024 - In this snippet, reduce() takes a lambda function that concatenates the string representation of its two arguments, and applies it across the list numbers, effectively joining all the integers into a single string.
TutorialsPoint
tutorialspoint.com › article › convert-a-list-of-multiple-integers-into-a-single-integer-in-python
Convert a list of multiple integers into a single integer in Python
May 20, 2020 - numbers = [22, 11, 34] # Given list print("Given list:", numbers) # Use string formatting to concatenate result = int(''.join(f'{num}' for num in numbers)) # Result print("The integer is:", result) ... All three methods effectively convert a list of integers into a single integer by concatenation. The map() approach is generally the most efficient, while string formatting offers the cleanest syntax for modern Python code.
Great Learning
mygreatlearning.com › blog › it/software development › how to convert list to string in python
How to convert List to String in Python
November 7, 2024 - The str() function ensures all elements, including integers, are safely converted to string format before joining them together. ... You can use one-liner strings = [str(x) for x in ints] to convert a list of integers into a list of strings. ...
Note.nkmk.me
note.nkmk.me › home › python
Concatenate Strings in Python: +, +=, join(), and more | note.nkmk.me
May 19, 2025 - If you want to concatenate a list of numbers, such as int or float, into a single string, you can convert the numbers to strings using list comprehension with str(), and then concatenate them using join().
Simplilearn
simplilearn.com › home › resources › software development › how to convert a list to string in python easily [2027]
How to Convert a List to String in Python Easily [2026]
3 weeks ago - Learn the fastest, cleanest ways to convert a Python list to a string using join(), map(), list comprehension, and more, with copy-paste code examples.
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W3Schools
w3schools.com › python › ref_string_join.asp
Python String join() Method
Remove List Duplicates Reverse ... Study Plan Python Interview Q&A Python Training ... The join() method takes all items in an iterable and joins them into one string....
4Geeks
4geeks.com › en › how-to › convert-list-to-string-in-python
Python List to String: join(), map() & Loops (Examples)
3 weeks ago - Basically, we are using the map() function to first convert the int elements of our list into string elements before converting the whole list into a string. Another useful way to use the .join() method with lists that have int type elements ...
iO Flood
ioflood.com › blog › python-join-list-to-string
Python Join List to String: Step-by-Step Guide
June 18, 2024 - We’ll explore the join() function’s ... function! To join a list to a string in Python, you use the join() function like string = ' '.join(list)....
DigitalOcean
digitalocean.com › community › tutorials › python-join-list
Join Python List: Methods, Examples, and Best Practices | DigitalOcean
June 16, 2026 - Learn how to join a Python list using join(), +, extend(), and itertools.chain(). See real code examples, benchmarks, and best practices.
Reddit
reddit.com › r/learnpython › convert list with strings and integers to a string?
r/learnpython on Reddit: Convert list with strings and integers to a string?
November 4, 2018 -
In the past ''.join(list) has worked fine, but I guess now that the things in the list aren't all the same it doesn't. Is there any way to fix this? I was thinking converting all the integers to strings but that didn't work, it still spits out a list
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Something like “”.join([str(i) for i in my_list])
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If you are using Python 3.6 or higher, you can use f-strings instead of str() following the solution u/beautifulw0man provided, and you could also do a list comprehension version to get back to your preferred join() approach. new_string = ''.join([f'{item}' for item in list]) which temporarily creates a new list of strings for join to chew on.
freeCodeCamp
freecodecamp.org › news › python-join-how-to-combine-a-list-into-a-string-in-python
Python join() – How to Combine a List into a String in Python
January 3, 2023 - By Suchandra Datta join() is one of the built-in string functions in Python that lets us create a new string from a list of string elements with a user-defined separator. Today we'll explore join() and learn about: join() syntax how to use join() ...