Python String

Let’s talk about this data type str which stands for strings.

A string is simply a piece of text for example a string can be written with quotation marks i.e ‘Hello World’.

We can also make strings with double quotes, this is also a valid string i.e. “Hello World”.

Python does not support character data type, one character is also treated as a string of length one.

x = "Hello World"
y = 'Python Coding'

print(x)
print(y)

Output:

Hello World
Python Coding

Multiple Line String

We can’t write a paragraph of multiple lines using single or double quotes, so there is a triple quotation method to write a big paragraph of multiple lines.

x = '''This is a big paragraph
by using triple qoutation
in Python.
'''

print(x)

Output:

This is big paragraph
by using triple qoutation
in Python.

**We also use escape characters in between big paragraphs.

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Escape Characters

Backslash Notation	Description
\a	Bell or alert
\b	Backspace
\cx	Control-x
\C-x	Control-x
\e	Escape
\f	Formfeed
\M-\C-x	Meta-Control-x
\n	Newline
\nnn	Octal notation, where n is in the range 0.7
\r	Carriage return
\s	Space
\t	Tab
\v	Vertical tab
\x	Character x
\xnn	Hexadecimal notation, where n is in the range 0.9, a.f, or A.F

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Accessing Values in Strings

We can access characters or substring from a string using index number. This is also called String Slicing. For example:

x = 'Python'
    #012345

print(x[2])
print(x[0:4]) #start index : end index+1

Output:

t
Pyth

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String Concatenation

Adding two or more string is called String Concatenation. This only works with Strings, we can’t a string and a number.