These notes on the Python programming language are an excellent resource for anyone looking to learn or improve their Python skills. The clear and concise explanations make it easy to understand even the most complex concepts. The author has included numerous examples and practical exercises to hel...
, 1. What are two modes of working in IDLE?
Interactive mode:
Interactive mode is very convenient for writing concise lines of code. In Python, it is also known as REPL which stands
for Read Evaluate Print Loop. Here, the read function reads input from the user and stores it in memory. The eval
function evaluates input to get the desired output.
Script Mode:
In script mode, you write your code in a .py file and then run it with the Python command. This is the most common
way that people use Python because it lets you write and save your code so that you can use it again later.
2. What is a variable? What are the rules for naming a variable?
Variables in Python are containers that store values. The rules to name variables are as follows:
a. Variable names must start with a letter or underscore character.
b. Variable names cannot start with a number.
c. It can only contain alpha-numeric characters and underscores.
d. They are case-sensitive.
e. Reserved words cannot be used in naming a variable.
3. Explain the difference between Brackets, Braces, and Parenthesis.
Brackets Braces Parenthesis
Brackets show changes within the Braces are not typically used except Parenthesis is for
quoted material. in technical and mathematical separating citations or other
wrongs. asides from body text.
Brackets are dented by the ‘[ ]’ Braces are denoted by the ‘{}’ Parenthesis is denoted by the ‘()’
symbol. symbol. symbol.
4. Explain the control statement by using a for loop.
With loop control statements, you can repeatedly execute a block of code. For statements loop, a specific number of
times, and keep track of each iteration with an incrementing index variable.
5. Explain the Break statement with a suitable example.
The purpose of a break statement is to break out of the loop early. For example, the following code takes 2 lists and
returns true if they have common members.
a=[1,2,3,4,5,6,7]
b= [2,4,6,8]
for i in a
for j in b
if I == j
print(“true”)
break;
6. Explain type conversion in Python
Type conversion is the process of converting a data type into another data type. Implicit type conversion is performed
by the user by Python interpreter only. Explicit type conversion is performed by the user by explicitly using the type
conversion function in the program code. Explicit type conversion is also known as typecasting. Python, when
performing implicit typecasting, avoids the loss of classes in data.
7. What is import? Explain ways of importing in Python.
Python code in one module gains access to code in another module by the process of importing it. Import statement
is the most common way of invoking import machinery, but it is not the only way.Functions such as
importlib.import_module() and built-in import() can also be used to invoke import machinery. Import statement
combines two operations; it searches for a named module, and then it binds the results of that search to a name in
the local scope. The search operation of the import statement is defined as a call to the import() function, with
appropriate arguments. The return value of import() is used to perform name binding operation of the import
statement.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller sushanttare. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.49. You're not tied to anything after your purchase.
