Python PCEP Literals

1. Module 1
operations, basic operators,data types, variables,
basic input-output
Python literals

2. Module 1 Python literals
Literals - the data in itself
123
• one hundred twenty three!
C
• the speed of light?
• the constant of integration?
• the length of a hypotenuse?
• ...?
print("2")
print(2)
2
2
be stored in completely
different ways in the
computer's memory

3. Module 1 Python literals
Octal and Hexadecimal numbers
the number eleven
million one hundred and
eleven thousand one
hundred and eleven
11111111
11_111_111
negative numbers?
-11111111
-
11_111_111
octal
• 0O or 0o prefix (zero-o)
hexadecimal
• 0x or 0X prefix (zero-x)

4. Module 1 Python literals
Floats & Exponent
2.5 -0.4 0.4 .4 4.0 4. 3 X 108 3E8: exponent
print(0.0000000000000000000001)
1e-22

5. Module 1 Python literals
Strings
• Strings are used when you need to process text.
"I am a
string."
I like "Monty
Python"
print("I like "Monty Python"")
print('I like "Monty Python"')

6. Module 1 Python literals
Boolean values
False
0
No, this is false
True
1
Yes, this is true
print(True > False)
print(True < False)

7. Module 1 Python literals
Key takeaways
• Literals are notations for representing some fixed values in code;
• A binary number is made up of 0s and 1s only;
• The numerical types: integers, floating-point numbers;
• Using the escape character;
• Boolean values: true & false

8. Module 1 Python literals
LAB Practice
3. Python literals-strings