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7 Quiz Set/s
Python
7 Quiz Sets
Python
Python Full Review
Can you answer
25
questions in 10 minutes?
Python Full Review |
1. Syntax error
An error in a program that makes it impossible to parse — and therefore impossible to interpret.
**
\
Converts string (converts any python object using str())
2. \n
Magnetically
Ram
Line character; creates new line in string
Formatting
3. Function argument
**
Passed in for function parameter
Iterate over items of a collection in order they appear
Signed integer decimal
4. **when slicing if you wanted numbers 1 and 2 you would slice [0:2] so the code would include both the index 0 and 1
Special tokens that represent computations like addition - multiplication and division
Strings
Conditionally
Start at 0
5. What is the disadvantage of coding in one long sequence structure?
If parts of the duplicated code have to be corrected - the correction has to be made many times.
%s
Input
List
6. Upper()
Floating point decimal format (uppercase)
Converts a string to uppercase
Comments
Octothorpe - use for comments on the code - use to disable code - placing a # at the beginning of a line or in the middle of a line tells python to ignore whatever is written on the line after the #
7. Python uses _______________ to categorize values in memory.
Data types
Raised by the runtime system if something goes wrong while the program is running.
List directory
- script = name of python script - first - second - third = 3 variables arguments assigned to
8. Operators
Err:509
Modulus
A programming language that is designed to be easy for a computer to execute; also called machine language or assembly language
Special tokens that represent computations like addition - multiplication and division
9. In python - the variable in the for clause is referred to as the _____ because it is the target of an assignment at the beginning of each loop iteration.
Target variable
Signed integer decimal
To follow the flow of execution of a program by hand - recording the change of state of the variables and any output produced.
Available everywhere
10. %d
Export/set a new environment variable
Integer is a number w/out a decimal; float is a number with a decimal
If is a conditional statement that executes some specified code after checking if its expression is true.
Integer format character
11. Read() - method reads a string from an open file
Total += number
For
Order of operations: mode of operations: parentheses exponents multiplication division addition subtraction
- fileobject.read([count]) - count = # of bytes to read - reads as much as possible if not given
12. Immutable type
Variables only available to members of certain class
A compound data type whose elements can not be assigned new values.
Floating point exponential format
Eniac
13. Universal import
Order: not - and - or
A method/function/command to read just one line of a text file
When a boolean expression is evaluated the evaluation starts at the left hand expression and proceeds to the right - stopping when it is no longer necessary to evaluate Any further to determine the final outcome.
Imports all functions and variables from a module - can cause conflicts with user defined functions and vars - better to import only necessary functions - from module import *
14. Def
Defines a function
Double alternative
A formatter text that is used to give the user the ability to type in a question
False
15. Variable
24
A variable is something that holds a value that may change. In simplest terms - a variable is just a box that you can put stuff in. You can use variables such as numbers. Ex: lucky = 7 print(lucky) 7
Converts to a string
To test if a condition is true (e.g. if age >17)
16. Else must have a...
Signed integer decimal
-for anonymous (throwaway) functions
Die function that prints out an error message - in case the else doesn't make sense. Shows errors.
Used to create a new user defined function
17. No - you write comments only to explain difficult to understand code or why you did something. Why is usually much more important - and then you try to write the code so that it explains how something is being done on its own. However - sometimes you have to write such nasty code to solve a problem that it does need a comment on every line. In this case it's strictly for you to practice translating code to english.
Repetition
Signed octal value
True - false
True
18. \uxxxxxxxx
Danger! Become super use root! Danger!
A piece of code which can be executed as if it were a function but without a name. (it is also a keyword used to create such an anonymous function.)
Used to create a new user defined function
Character with 32-bit hex value xxxxxxxx (unicode only)
19. 8 & 5
- not necessary - but important best practice
Float
Bitwise and - turns on bits turned on in both inputs - 0b100 & 0b101 = 0b100
- fileobject.read([count]) - count = # of bytes to read - reads as much as possible if not given
20. True/false: python formats all floating-point numbers to two decimal places when outputting using the print statement.
An operation that divides one integer by another and yields an integer. Integer division yields only the whole number of times that the numerator is divisible by the denominator and discards any remainder.
False
A whole number
Diamond
21. Lambda
The "argument variable - " a very standard name in programming - that you will find used in many other languages. This variable holds the arguments you pass to your python script when you run it. You know how you type python ex13.py to run the ex13.py file? Well the ex13.py part of the command is called an "argument." What we'll do now is write a script that also accepts arguments.
Creates a new anonymous function
Float
A programming language like python that is designed to be easy for humans to read and write.
22. .isalpha()
Means equal to
Instruction that the python interpreter can execute
Is a letter
A file containing python definitions - statements or scripts - can be user defined or from a built-in library
23. List of characters
Floor division. Numbers after the decimal in the quotient are removed - 9//2 = 4
Character with octal value ooo
Strings
[:2]
24. Block
A group of consecutive statements with the same indentation.
To repeat a section of code.
Sorts a list from lowest to highest - or alphabetical
Sorts a list from smallest to greatest
25. The \t escape character causes...
The output to skip over to the next horizontal tab.
Signed integer decimal
Access dictionary values
Compound
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