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C949 WGU - Python section Questions with correct Answers
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C949 WGU - Python section
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C949 WGU - Python sectionPython interpreter - answeris a computer program that executes code written in the
Python programming language
interactive interpreter - answeris a program that allows the user to execute one line of
code at a time.
Is Python case sensitive? - answerYes. Python is a case sensitive language.
Phython Comments symbol - answer# this is a comment
print() - answerfunction displays variables or expression values.
print('Hello there')
end=' ' inside of print() - answerkeep the output of a subsequent print statement on the
same line separated by a single space
input() - answerwill read text entered by the user
int() function - answercan be used to convert that string to the integer 123
3 defining Properties of Python objects - answerValue
Type
Identity
Mutability - answerindicates whether the object's value is allowed to be changed.
id() - answergives the value of an object's identity.
floating-point number
and
floating-point literal - answerreal number, like 98.6
and
fractional part even if that fraction is 0, as in 1.0
scientific notation - answer1.0e-3.
The "e" stands for exponent
Overflow occurs when.... - answera value is too large to be stored in the memory
, ** is - answerexponent operator is **, as in x ** y
module - answera file containing Python code
string concatenation - answer"New" + "York"
container - answerconstruct used to group related values together and contains
references to other objects instead of data.
A list - answeris a container created by surrounding a sequence of variables or literals
with brackets [ ].
list; append() - answermethod is used to add new elements to a list.
List; Elements can be removed using the..... method - answerpop() or remove()
tuple - answerstores a collection of data, like a list, but is immutable - once created, the
tuple's elements cannot be changed.
named tuple - answerallows the programmer to define a new simple data type that
consists of named attributes
set - answeris an unordered collection of unique elements.
Elements are unordered: Elements in the set do not have a position or index.
Elements are unique: No elements in the set share the same value.
Set; add() - answerplaces a new element into the set if the set does not contain an
element with the provided value.
Set; remove() and pop() - answerremove an element from the set.
dictionary - answeris a Python container used to describe associative relationships. A
dictionary is represented by the dict object type.
created by using curly braces { } to surround the key:value pairs
dict; key - answeris a term that can be located in a dictionary, such as the word "cat" in
the English dictionary.
(A key can be any immutable type, such as a number, string, or tuple;)
dict; value - answerdescribes some data associated with a key, such as a definition.
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