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Python Syntax Exercises

4 exercises that build on the Python Syntax lesson, from easy to hard. Each one is checked in your browser when you press Check. Stuck? Use the hint before peeking at the solution.

What this lesson covers: Python syntax is the set of rules for writing code Python can understand: one statement per line, run from top to bottom, with indentation showing which lines belong together. By the end you can write and run a small program with print(), add comments, indent a block correctly, and use a SyntaxError message to find and fix a typo. You will practise: Your first program; Fix the shopping list; Predict the output; Battery and signal warnings.

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1. Your first program

Write code Easy

Write a program that prints exactly these two lines:

Hello, Python!
I am learning to code.

Use one print() call for each line. Capital letters and punctuation must match.

Your code 
# Write your two print() calls below




  
  

  
  
  



    
  
    

  

    
2. Fix the shopping list

    Fix the bug
    Easy
    
  

  
This program should print the three lines below, but it has two bugs. Run it, read the error, fix that line, then run again until it works.


Shopping list:
- apples
- bread


  
    

  

    Your code
    

      
      
      
      
    

  

  
print("Shopping list:")
print("- apples)
Print("- bread")

  
  
  
  

    
      
      
      
      
    
    
  

  




  
  

  
  
  



    

  
    

  

    
3. Predict the output

    Predict the output
    Medium
    
  

  
Read the code and type exactly what it prints. Watch out for comments and for the indented block. Then press Check to run it and compare.

  
    

  

    Read this code
    

      
      
    

  

  
print("A", "B")
# print("C")
if 2 > 5:
    print("D")
    print("E")
print("F")  # print("G")

  
  
  

  

    
      
      
      
      
    
    
  

  




  
  

  
  
  



    
  
    

  

    
4. Battery and signal warnings

    Write code
    Medium
    
  

  
The variables battery and signal are already set. Add code that:


    

  1. prints Low battery and then Plug in your charger only if battery is below 20,
    2. 

  2. prints Weak signal only if signal is below 2,
    3. 

  3. always prints Done at the very end.
    4. 



Use if blocks with 4-space indentation, like the weather example above. With the given values the output should be:


Low battery
Plug in your charger
Done


  
    

  

    Your code
    

      
      
      
      
    

  

  
battery = 15
signal = 4

# write your if blocks here

  
  
  
  

    
      
      
      
      
    
    
  

  




  
  

  
  
  



    
  
  

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