4. Making Comparisons

Introduction to Python

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1. Introduction

2. Numbers in Python

3. Text in Python

4. Making Comparisons

5. Making Choices

6. Exercise: Paper, Scissors, Stone game

7. Lists

8. Loops

9. Simple Web Crawler

4. Making Comparisons

Comparing Numbers
There are six possible comparisons that can be made in Python: == equal > greater than < smaller than != not equal >= greater than or equal to <= smaller than or equal to
For example, we can make comparisons in Python between two numbers:
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1==1
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>> True
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​
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5<0
5
>> False
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In the above, by inputting 1==1 is same as asking Python this question: Is 1 equal to 1”? (The answer is yes.) The result of these comparison is a data type called Boolean, which has only two possible values: True or False.
Note that == and = are not the same. 
== is used for comparison, while = is used for assigning a value to a variable.
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X = 4  #this is assigning the value 4 to variable X
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X == 4 #this is asking Python to compare if variable X is equal to 4
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Comparing Strings
You can also compare if two strings are equal in Python.
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"a"=="A"
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>> False
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We can also ask Python to find out if a string is contained within a string using the “in” comparison operator.
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"H" in "Hello"
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>> True
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​
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"h" in "Hello"
5
>> False
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3. Text in Python

5. Making Choices

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Contents

Comparing Numbers

Comparing Strings