Python Keywords, Identifiers and Statements 11

Python Strings/String Literals

String literals in python are surrounded by either single quotation marks, or double quotation marks.

‘hello’ is the same as “hello”.

Strings can be output to screen using the print function. For example: print(“hello”).

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.

Examples
>>> a=”hello”
>>> print(type(a))
<class ‘str’>

>>> a="hello"
>>> print(type(a))
<class 'str'>

Get the character at position 1 (remember that the first character has the position 0):

a = “Hello, World!”
print(a[1])
output:
e
print(a[0])
output:
H

a = "Hello, World!"
print(a[1])
#output:
e
print(a[0])
#output:
H

Substring. Get the characters from position 2 to position 5 (not included):

b = “Hello, World!”
print(b[2:5])
output:
llo

b = "Hello, World!"
print(b[2:5])
#output:
llo

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