Numbers and strings
Python variables can store data of various allowed types. Some of the simplest data types are strings and integers (official names in Python are "str" and "int").
You can print the data type of a variable by using type() function (see example below):
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#Example of a string variable
var = "42"
print(var)
print(type(var))
1234#Example of a string variable var = "42" print(var) print(type(var))
In the example above Python will print "42" and will treat this variable as a string.
In the example below it will also print "42", but will treat the variable as integer. You can only apply arithmetic operations to Numeric types (integer or others), not strings.
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#Example of an integer variable
var = 42
print(var)
print(type(var))
1234#Example of an integer variable var = 42 print(var) print(type(var))
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Analyze the code snippet on the right and fix it so that the program executes.
Lösning
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#Analyze the code the fix an error
#Example of an integer variable
print("What is the Answer to the Ultimate Question of Life, The Universe, and Everything?")
var = 41
answer = var + 1
print(answer)
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Avsnitt 1. Kapitel 6
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#Analyze the code the fix an error
print("What is the Answer to the Ultimate Question of Life, The Universe, and Everything?")
var = "41"
answer = var + 1
print(answer)
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