Class notes
python programming
- Course
- Institution
- Book
python programming has been fully explained detailly
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
Kaagaz
-
Keyword
-
ARRAYS IN COMPUTER SCIENCE
Seller
Follow
aarshanth5119
Content preview
Getting User Input andConcatenation
The input() function
Used to get user input
Returns a string value
Can be concatenated with other strings
Concatenation
Joining two or more strings together
Use the + operator for concatenation
Example
name = input("What is your name? ")
print("Hello, " + name)
ValueError
Occurs when an operation or function receives a value
of an inappropriate type
Example: Trying to convert a string to an integer using
the int() function and the string does not contain a
number
age = int(input("What is your age? "))
Displaying Results
Use the print() function
Accepts any number of arguments
Separate arguments with commas
Age Calculator Concept
, Create a program that calculates a user's age
Get user's birth year and current year
Calculate the difference between the two
Display the result using the print() function
birth_year = int(input("What year were you
born? "))
current_year = int(input("What is the current
year? "))
age = current_year - birth_year
print("You are " + str(age) + " years old.")
Getting User Input and Concatenation
Use the input() function
Get user input as a string
Concatenate strings with the + operator
Display results with the print() function
Handle ValueErrors as needed
Value Error: TypeError caused
by invalid value
In Python, a ValueError is a type of exception that is
raised when an operation or function receives an
argument of an inappropriate type. This is typically
caused by passing an argument of a type that is not
expected by the function or operation.
One common example of a ValueError is
the TypeError , which is raised when an operation or
,function receives a value of an inappropriate type. For
instance, consider the following code:
name = "John"
age = "thirty"
print(f"{name} is {age} years old.")
This code will produce the following output:
John is thirty years old.
However, this output is incorrect because the value
of age is a string, not an integer. To fix this error, we
can use the int() function to convert the string value
of age to an integer:
name = "John"
age = "thirty"
age = int(age)
print(f"{name} is {age} years old.")
This code will produce the following output:
John is 30 years old.
By using the int() function, we have converted the
string value of age to an integer, which allows
the print() function to correctly display the age of the
person.
Other examples of ValueError include passing a string
to a function that expects an integer, or passing a list to
a function that expects a dictionary. In general, to
avoid ValueError s, it is important to ensure that the
arguments passed to functions and operations are of the
correct type.
, It is also important to note that ValueError s can be
handled using exception handling techniques in Python.
This allows the program to continue running even if
a ValueError occurs, and provides a way to gracefully
handle and recover from the error.
In summary, ValueError s are raised when an
operation or function receives an argument of an
inappropriate type. To avoid ValueError s, it is
important to ensure that the arguments passed to
functions and operations are of the correct type.
Exception handling techniques can also be used to
handle and recover from ValueError s.
Displaying Results: Usage
of print function
The print function is used to display results in Python.
Here's how to use it:
print("Hello, World!") displays the string "Hello,
World!"
print(5+3) displays the result of the arithmetic
operation 5 + 3
print(5>3) displays the result of the comparison
operation 5 > 3
You can also print the values of variables:
x = 5
y = 3
print(x + y) displays the result of 5 + 3
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 aarshanth5119. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now