Find the Error!
Find the error in the statement below.
print('Errors are no fun!")
The quotation marks need to be the same!
Corrected would be:
print("Errors are no fun!") OR
print('Errors are no fun!')
Name two python naming rules.
Some possible answers:
No starting names with a number
No including special characters
Make the name descriptive and not too long
It is bad practice to start variable names with an underscore
What goes on both sides of the variables given to a function?
example- you want to pass x into the print statement, so what goes around x to let the print statement know that you want to print x?
Parenthesis!
print()
Find the error in the statement below.
x = 1
x=+1
print(x)
Is the following name good?
centroid_one_
Yes! There is an underscore after the name, which is ok to do in normal practice.
How do you write out exponentials in python math?
Double asterisks!
For example, two squared would be written as 2**2
Find the error in the statement below.
##CODE START##
y = (x**3) + 15
print(y)
x is not defined!
Is the following variable name valid?
centroid_one-six-four
No! No hyphens allowed!
Can I put the pound sign (#) inside a print statement if it is also inside quotation marks?
Yes! You will learn more about this later, but encompassing something in quotation marks in Python makes it a string variable, and Python doesn't care about almost anything inside that string variable. Even though the pound sign means comment, if its inside that string variable, Python only sees it as a string, not as a comment.
Find the error in the statement below.
x = 1
y = ((x+4 ) + (x-2)))/(x-2)
There is an extra parenthesis after the x-2.
Is the following variable name good?
variable_one_that_is_velocity_of_the_thing
No, it is descriptive but way too long.
Can I name a variable print?
No! That is a reserved keyword in Python. You'll come across more of those throughout this class.
Find the errors in the statement below.
x = 183918
4th_variable = (x/4) + x**2
print("The fourth variable is" 4th_variable)
You can't start a name with a number, and you need to put a comma after "The fourth variable is" in the print statement, so that it looks like:
print("The fourth variable is" , 4th_variable)
Is the following variable name valid?
factorial_var_5!
No! Exclamation points are special characters and are not allowed!
Yes! You cannot randomly indent your code, indentations have special meaning. You'll learn more about that later!