What does comma mean after a variable in Python?

tuple
In Python, it’s the comma that makes something a tuple: >>> 1 1 >>> 1, (1,) The parenthesis are optional in most locations.

What does comma mean in Numpy?

The comma is used to separate the axes on which you’re slicing. The code you’ve provided says, “Take only training_columns rows and all ( : ) columns. It’s a lot like the matrix indexing you’re used to from math classes: A[x, y] is the element in row x and column y .

How do you put a comma in Python?

Use str. format to add commas to a number format(number) with “{:,}” as str to signal the use of a comma for a thousands separator and return a string with commas added to number .

What is the difference between a comma and a plus symbol in Python?

concatenation means you are combining both variables(only strings) into one. But when you use comma it prints both the output separately but you can’t see it on the output console. concatenation can only be made between strings. By using the plus sign, you have changed the contents of the string named ‘answer’.

How do you put a comma after a variable in Python?

It looks like you already have a comma next to a variable. Another option is to use the sep arg of print , eg print(‘Hi ‘, name, ‘, you have a short name. ‘, sep=”) . And in Python 3.6+ you can use an f-string to do the formatting: print(f’Hi {name}, you have a short name.

What Does a colon mean in Python?

A colon is used to represent an indented block. It is also used to fetch data and index ranges or arrays. Another major use of the colon is slicing. In slicing, the programmer specifies the starting index and the ending index and separates them using a colon which is the general syntax of slicing.

What is NP s_?

s_ = .IndexExpression object> A nicer way to build up index tuples for arrays. Note. Use one of the two predefined instances index_exp or s_ rather than directly using IndexExpression. For any index combination, including slicing and axis insertion, a[indices] is the same as a[np.

How do you put a comma in a number in Python?

1. # input comma separated elements as string.
2. str = str (raw_input (“Enter comma separated integers: “))
3. print “Input string: “, str.
4. ​
5. # conver to the list.
6. list = str. split (“,”)
7. print “list: “, list.

How do you put a comma after every three digits in Python?

def comma(num): ”’Add comma to every 3rd digit. Takes int or float and returns string.

What is the difference between print with comma and print with?

PRINT with Semi Colon: It is used to display the values One after another, without any space in between. PRINT with Comma: It is used to display the values one after another with plenty of spaces in between.

How do you print an apostrophe in Python?

By using the escape character \” we are able to use double quotes to enclose a string that includes text quoted between double quotes. Similarly, we can use the escape character \’ to add an apostrophe in a string that is enclosed in single quotes: print(‘Sammy\’s balloon is red.

What does comma do in Python?

Python does not have a comma operator. The only place in Python code where the comma might look like an operator is in tuple literals. Python lets you abbreviate tuples so that, for example, x = (1, 2) can be written x = 1, 2; however, this is only allowed where it is unambiguous.

How do you split a string in Python?

Python String split() Method. Description. The method split() returns a list of all the words in the string, using str as the separator (splits on all whitespace if left unspecified), optionally limiting the number of splits to num. Syntax. str.split(str=””, num=string.count(str)).

What is the comma code for HTML?

The decimal code for comma is 44. This is equivalent to the hexa-decimal number 2C and the Octal 54. Here is the information about the ASCII code for comma (,): The ASCII character set consists of 128 characters (0 to 127 decimal, 0 to 7F hexadecimal, and 0 to 177 octal). In the 1st column are the characters as they are show in a HTML page.

What is a string in Python?

Strings are Arrays Like many other popular programming languages, strings in Python are arrays of bytes representing unicode characters. However, Python does not have a character data type, a single character is simply a string with a length of 1. Square brackets can be used to access elements of the string.