-

Strings



If you want to use text in Python, you have to use a string.
A string is created by entering text between two single or double quotation marks.

When the Python console displays a string, it generally uses single quotes. The delimiter used for a string doesn't affect how it behaves in any way.>>> "Python is fun!"
'Python is fun!'
>>> 'Always look on the bright side of life'
'Always look on the bright side of life'

Newlines !!


Python provides an easy way to avoid manually writing "\n" to escape newlines in a string. Create a string with three sets of quotes, and newlines that are created by pressing Enter are automatically escaped for you.>>> """Customer: Good morning.
Owner: Good morning, Sir. Welcome to the National Cheese Emporium."""

'Customer: Good morning.\nOwner: Good morning, Sir. Welcome to the National Cheese Emporium.'There is another string type in Python called docstrings that is used for block commenting, but it is actually a string. You will learn about this in future lessons.

Comments

Post a Comment

Popular posts from this blog

-
Floats Floats  are used in Python to represent numbers that aren't integers. Some examples of numbers that are represented as floats are 0.5 and -7.8237591. They can be created directly by entering a number with a decimal point, or by using operations such as division on integers. Extra zeros at the number's end are ignored. >>> 3/4 0.75 >>> 9.8765000 9.8765     Floats As you saw previously, dividing any two integers produces a  float . A  float  is also produced by running an operation on two floats, or on a  float  and an  integer . >>> 8 / 2 4.0 >>> 6 * 7.0 42.0 >>> 4 + 1.65 5.65 A  float  can be added to an  integer , because Python silently converts the  integer  to a  float . However, this implicit conversion is the  exception  rather the rule in Python - usually you have to convert values manually if you want to operate on them. Computers can't sto...
Read more
-
Printing Text !!  The  print  statement can also be used to output multiple lines of text. For Example: >>> print('Hello world!') Hello world! >>> print('Hello world!') Hello world! >>> print('Spam and eggs...') Spam and eggs... Try It Yourself Python code often contains references to the comedy group  Monty Python . This is why the words, "spam" and "eggs" are often used as placeholder variables in Python where "foo" and "bar" would be used in other programming languages.
Read more
-
Simple Operations Python has the capability of carrying out calculations. Enter a calculation directly into the Python console, and it will output the answer. >>> 2 + 2 4 >>> 5 + 4 - 3 6 Simple Operations The minus sign indicates a  negative  number. Operations are performed on negative numbers, just as they are on positive ones. >>> -7 -7 >>> (-7 + 2) * (-4) 20 Python also carries out multiplication and division, using an  asterisk  to indicate multiplication and a  forward slash  to indicate division. Use  parentheses  to determine which operations are performed first. >>> 2 * (3 + 4) 14 >>> 10 / 2 5.0 Using a single slash to divide numbers produces a decimal (or  float , as it is called in programming). We'll have more about  floats  in a later lesson. The spaces around the plus and minus signs here are  optional  (the code would work without them), b...
Read more