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Familiar functions

Out of the box, Python offers a bunch of built-in functions to make your life as a data scientist easier. You already know two such functions: print() and type(). There are also functions like str(), int(), bool() and float() to switch between data types. You can find out about them here. These are built-in functions as well.

Calling a function is easy. To get the type of 3.0 and store the output as a new variable, result, you can use the following:

result = type(3.0)

This is a part of the course

“Introduction to Python”

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Exercise instructions

  • Use print() in combination with type() to print out the type of var1.
  • Use len() to get the length of the list var1. Wrap it in a print() call to directly print it out.
  • Use int() to convert var2 to an integer. Store the output as out2.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Create variables var1 and var2
var1 = [1, 2, 3, 4]
var2 = True

# Print out type of var1
____

# Print out length of var1
____

# Convert var2 to an integer: out2
out2 = ____
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