¿Cómo me deshago de none de la salida en Python?

How do I get rid of none from output in Python?

Use filter() to remove None from a list in Python

1. print(list_of_values) [1, 2, None, 3, None]
2. Not_none_values = filter(None. __ne__, list_of_values)
3. list_of_values = list(Not_none_values)
4. print(list_of_values) [1, 2, 3]

Example : Remove the last line from the text file in Python

1. #remove last line from a text line in python.
2. fd=open(“file.txt”,”r”)
3. d=fd. read()
4. fd. close()
5. m=d. split(“/n”)
6. s=”/n”. join(m[:-1])
7. fd=open(“file.txt”,”w+”)
8. for i in range(len(s)):

When a function doesn’t return anything, it implicitly returns None . Use return statement at end of function to return value. e.g.: Return None .

Use del to delete a line from a file where its position is known {#use-del) Open the file for reading and use file. readlines() to create a list where each element is a line from the file. Use the syntax del list[index] with list as the list of lines to delete the element at index .

Checking if a variable is None using is operator:

1. # Declaring a None variable. var = None.
2. # Declaring a None variable. var = None.
3. # Declaring a variable and initializing with None type.
4. # Comparing None with none and printing the result.
5. # Comparing none with False and printing the result.
6. # Declaring an empty string.

In Python, it is possible to compose a function without a return statement. Functions like this are called void, and they return None, Python’s special object for “nothing”. Here’s an example of a void function: Calling the two functions, you first notice the slight difference in the output.

In this tutorial, you will learn about how to remove the last line from a text file in Python. Handling files in python play a crucial role in web applications. Here we use some predefined file handling operations like creating, writing, reading, deleting files.

Python program to remove / from list elements. Just create a new list and use the below code. new_items = [x[:-1] for x in items] print(new_items) new_items = [x [:-1] for x in items] print (new_items) new_items = [x [:-1] for x in items] print (new_items) Output:

Hello Python learners, in this Python tutorial, you will learn how to remove the last character from list elements in Python. In some situation, you will face the problem that, in your list, for every items, there is a as the last character. You may get confused if it is an empty character or a .

And None is being printed because you are telling Python to print it. (And it’s on the same line as the rest because none of your other print s print a newline.) To solve this, change that line to just: Your function is doing the printing, so there is no need to also print the function’s return value.