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6 Quiz Set/s
Python
6 Quiz Sets
Python
Python Full Review
Can you answer
25
questions in 10 minutes?
Python Full Review |
1. Man
Character with octal value ooo
Empties the file
Tests for object identity
Read a manual page
2. Close()
Floating point decimal format (lowercase)
Both as a noun and as a verb - increment means to increase by 1.
It allows you to input parameters from the command line.
- method flushes unwritten information and closes file object - not necessary - but important best practice
3. Boolean operators
Signed integer decimal
Move a file or directory
To test if a condition is true (e.g. if age >17)
Order: not - and - or
4. Modulo
True
A list whose objects can be accessed with a key instead of an index. Key can be any string or number. d = {'key1' : 1 - 'key2' : 2}
%. Returns the remainder from a division.
A python data type that holds positive and negative whole numbers
5. (x)
In general is a remembered group. You can get the value of what matched by using the groups() method of the object returned by re.search
Letters = ['a' - 'b' - 'c' - 'd' - 'e'] - slice = letters[1:3] - print slice - print letters
Ascii linefeed (lf) - goes to next line -newline escape
-aka libraries -feature sets you can import into a program
6. Dictionary
Hardware
A list whose objects can be accessed with a key instead of an index. Key can be any string or number. d = {'key1' : 1 - 'key2' : 2}
The meaning of a program
Data types
7. Instance variable
Input validation
Reads a line of input from user and returns as string
Variable only available to one instance of a class
Converts a signed integer decimal
8. Keyword
Die function that prints out an error message - in case the else doesn't make sense. Shows errors.
Import
Define the language's syntax rules and structure - and they cannot be used as variable names
Character with octal value ooo
9. A(n) _______________ is a name that represents a value stored in the computer's memory.
Print the whole file
Accumulator
False
Variable
10. %g
Character with hex value hh
Same as "e" if exponent is greater than -4 or less than precision
Combine
It allows you to input parameters from the command line.
11. Raw_input()
Unsigned octal
Raw input prompts the user for an input and then turns that input into a string. In between "(" and ")" the programmer writes the prompt that will prompt the user. When you set raw_input() equal to a variable - that variable becomes what the user inputs.
A loop inside the body of another loop.
Assembly
12. Element
A list of characters inside of quotes. Can be made of single - double or triple quotes.
True
**
One of the values in a list (or other sequence). The bracket operator selects elements of a list.
13. List of characters
For x in a:
Script
[:2]
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 #
14. Mutable type
Floating point exponential format
True
A compound data type whose elements can be assigned new values.
That's a little advanced - but try x = int(raw_input()) which gets the number as a string from raw_input() then converts it to an integer using int() - we put a - (comma) at the end of each print line. This is so print doesn't end the line with a newline character and go to the next line
15. Open(argument - 'w')
Change directory
Two's complement
Optional. Used after elif to catch other cases not provided for.
Open a file with an extra parameter. Python has several open parameters that open a file different ways
16. Reads the specified file
While condition : statement
To repeat an operation on all members of a set from the start to the end.
Use by entering at the end of the variable used to specify the file you have 'opened'.
Bitwise not - flips all bits in a number - for integers - effectively adds 1 and makes negative
17. True/false: in a nested loop - the inner loop goes through all of its iterations for every single iteration of an outer loop.
True
If elif else
Single character
Called an "import." This is how you add features to your script from the python feature set. Rather than give you all the features at once - python asks you to say what you plan to use. This keeps your programs small - but it also acts as documentation for other programmers who read your code later. May access features other than "argv"
18. Method
A formatter text that is used to give the user the ability to type in a question
Converts string (converts any python object using str())
Appends thing to lists
Function of an object
19. While
Controls flow of the program with truth statements. Statements inside the while loop are executed until the expression evaluates false.
Variables only available to members of certain class
The structure of a program
Signed octal value
20. Find
Find files
Used to interrupt the current cycle - without jumping out of the whole cycle. New cycle will begin.
For
Appends thing to lists
21. The \t escape character causes...
The output to skip over to the next horizontal tab.
Magnetically
Close()
Else
22. Syntax
Print the whole file
The process of calling the currently executing function.
An expression that is either true or false.
The structure of a program
23. \n
Access dictionary values
Ascii linefeed (lf) - goes to next line -newline escape
Assumes input is valid python expression - returns evaluated result
Pseudocode
24. Enumerate()
Smallest addressable element of a picture.
For
A programming language that is designed to be easy for a computer to execute; also called machine language or assembly language
Gives an index number to each element in a list
25. Boolean function
68
A function that returns a boolean value. The only possible values of the bool type are false and true.
Function rounds floating point numbers - round(1.773) = 2
A set of specific steps for solving a category of problems
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