Flashcards in this deck (57)

• What is the purpose of the Python review mentioned in the document?

  A very fast-paced review of Python basics

  A comprehensive guide to advanced Python

  An introduction to Python libraries

  A tutorial on Python web development
  python review
• Where can you find Python downloads and documentation?

  http://www.python.com

  http://www.python.org

  http://www.learnpython.org

  http://www.dabeaz.com
  python resources
• What does the Python interpreter provide?

  A text editor

  A graphical user interface

  A web server

  A read-eval loop
  python interpreter
• What is the command to run a Python program from the command line?

  python helloworld.py

  run helloworld.py

  python3 helloworld.py

  execute helloworld.py
  python execution
• How do comments start in Python?

  With a /* symbol

  With a -- symbol

  With a # symbol

  With a // symbol
  python comments
• What is the correct syntax to create a variable in Python?

  height : 442

  var height = 442

  int height = 442

  height = 442
  python variables
• Which operator in Python is used for power calculations?

  ^

  ^2

  *

  **
  python operators
• What is the outcome of the expression 7 // 4 in Python?

  0

  1

  2

  1.75
  python math
• How do you denote an if-else statement in Python?

  if condition: ... else: ...

  if condition then ... else ...

  if (condition) { ... } else { ... }

  if condition: ... elseif: ...
  python conditionals
• What are the relational operators in Python?

  < > <= >= == !=

  • • • /

  == != < >

  and or not
  python operators
• What does the 'if' statement do in Python?

  Prints text to console

  Ends a loop early

  Loops through items

  Executes code based on a condition
  python control_flow
• What does the 'while' statement do?

  Iterates over items

  Loops on a condition

  Skips to next iteration

  Terminates a loop
  python looping
• What does the 'break' statement do in a loop?

  Terminates the loop early

  Starts a new loop

  Exits the program

  Continues to next iteration
  python control_flow
• What is the purpose of the 'continue' statement?

  Starts a new loop

  Prints text to console

  Skips to the next iteration

  Terminates the loop
  python control_flow
• How does the print function separate items?

  By spaces

  By new lines

  By commas

  By tabs
  python printing
• What is the purpose of the 'pass' statement in Python?

  Acts as a placeholder

  Terminates the program

  Prints a message

  Loops through items
  python control_flow
• Which of the following is NOT a core Python datatype?

  String

  Set

  List

  Integer
  python datatypes
• What does the open function do?

  Opens a file

  Closes a file

  Writes data

  Reads data
  python file_handling
• What is the correct way to read a line from a file?

  line = f.read()

  line = f.readlines()

  line = f.readline()

  line = f.get()
  python file_handling
• What is the purpose of the 'with' statement when opening a file?

  Reads data from the file

  Writes data to the file

  Automatically closes the file

  Opens multiple files
  python file_handling
• Which method is used to write text to a file?

  g.append('some text')

  g.read('some text')

  g.open('some text')

  g.write('some text')
  python file_handling
• What does the '.format()' method do in Python?

  Writes data

  Formats strings

  Loops through items

  Reads files
  python string_manipulation
• What is the output of print(f'{name:>10s} {shares:>10d} {price:>10.2f}')?

  Integer output

  Formatted string output

  Raw string output

  List output
  python formatted_printing
• How do you read an entire file into a string in Python?

  data = f.load()

  data = f.get()

  data = f.read()

  data = f.readall()
  file_handling reading_files
• What mode should you use to write to a file in Python?

  'r'

  'rb'

  'a'

  'w'
  file_handling writing_files
• Which encoding might you need to specify when reading text files?

  'ascii'

  'utf-16'

  'latin-1'

  'utf-8'
  file_handling encoding
• What file mode is used for reading binary data?

  'ab'

  'rb'

  'w'

  'r'
  file_handling binary_files
• What function is used to sum numbers from n to 1?

  total(n)

  sumcount(n)

  countsum(n)

  addcount(n)
  functions python
• What indicates that an error has occurred in Python?

  a traceback

  a warning

  a failure

  an exception
  error_handling exceptions
• How do you catch exceptions in Python?

  try-except statement

  while loop

  if-else statement

  for loop
  error_handling exceptions
• Which statement is used to raise an exception?

  catch

  throw

  signal

  raise
  error_handling exceptions
• What can be associated with most exceptions in Python?

  an associated value

  a code

  a message

  a type
  error_handling exceptions
• How can you catch multiple exceptions at once?

  except ValueError, TypeError as e

  except all

  except (ValueError, TypeError) as e

  except (ValueError, TypeError)
  error_handling exceptions
• What does the finally statement do in exception handling?

  Specifies code that may run if no exceptions occur

  Specifies code that only runs on exceptions

  Specifies code that runs if the program is successful

  Specifies code that must run regardless of exceptions
  error_handling exceptions
• What does a finally statement specify in Python?

  Code that runs before an exception is raised

  Code that must run regardless of exception occurrence

  Code that runs only if no exceptions occur

  Code that runs only if an exception occurs
  python exceptions
• What is the purpose of the lock in the example?

  To manage resources properly

  To define a class

  To create a new thread

  To handle exceptions
  python concurrency
• What is Python primarily considered as?

  A procedural language

  A functional language

  A scripting language

  An object-oriented language
  python programming
• What do all basic data types in Python represent?

  Modules

  Classes

  Objects

  Functions
  python data_types
• What method is used to convert a string to uppercase in Python?

  upper()

  title()

  lower()

  capitalize()
  python strings
• What is a class in Python?

  A blueprint for creating objects

  A module

  A data structure

  A type of function
  python classes
• What does the init method do?

  Initializes a new instance of a class

  Creates a new module

  Defines a new class

  Handles exceptions
  python object-oriented
• How do you create an instance of a class in Python?

  By calling the class as a function

  By defining a new method

  By importing the class

  By using the class name directly
  python instances
• What is the first argument in a method defined in a class?

  self

  this

  object

  instance
  python methods
• What is a module in Python?

  A built-in function

  Any Python source file

  A type of class

  A package of libraries
  python modules
• What is a namespace in Python?

  A type of variable

  A module import

  A function definition

  A collection of named values
  python namespaces
• What does the import statement do?

  Defines a new variable

  Loads and executes a module

  Creates a new module

  Compiles the code
  python import
• What happens when you define the same variable name in different modules?

  They overwrite each other

  They do not conflict with each other

  They cause an error

  They merge into one variable
  python globals
• What does the import as statement do?

  Defines a new variable

  Assigns a different name to a module object

  Creates a new module

  Imports multiple modules
  python import
• What does the 'import as' statement do in Python?

  Assigns a different name to a module locally

  Defines the main module

  Imports all functions from a module

  Imports selected symbols only
  python import
• What is the purpose of 'from module import'?

  Lifts selected symbols out of a module into local scope

  Defines the main module

  Assigns a different name to the module

  Imports the entire module
  python import
• What does 'from module import *' do?

  Defines the main module

  Takes all symbols from a module into local scope

  Imports the module with a different name

  Lifts selected symbols into local scope
  python import
• Why is 'from module import *' generally discouraged?

  It leads to poor code readability

  It is not compatible with Python 3

  It imports too many symbols

  It requires additional syntax
  python best_practices
• What is the 'main' module in Python?

  A module that imports all others

  A function that executes first

  The source file that runs first

  The module that defines the main class
  python main_module
• What does the 'name' check do?

  Checks for syntax errors

  Defines a new module

  Determines if the module is running as the main program

  Imports the main module
  python main_module
• What is 'sys.path' used for?

  It lists all installed packages

  It contains the module search path

  It defines the main module

  It stores variable definitions
  python sys_path
• How can you manually adjust the module search path?

  By appending to sys.path

  By renaming the module

  By importing the module directly

  By modifying the PYTHONPATH environment variable
  python sys_path
• What is the summary of the document regarding Python modules?

  It lists all Python modules

  It explains advanced Python concepts

  It provides an overview of basics and hints at more depth later

  It focuses only on error handling
  python overview