Loop Control Statements in C
Introduction to HTML
How to use the Github API
The image tag, anchor tag and the button tag
Ordered and Unordered Lists in HTML
The division tag
HTML Forms
Tables in HTML
Introduction to C Programming
Introduction to Python
Varibles and Datatypes in Python
Operators in Python
Typecasting in Python
Input and Output in Python
If Else in Python
Loops in Python
Break, Continue and Pass in Python
Python practice section 1
Lists in Python
Tuple in Python
Unpacking Sequences in Python
Unpacking means taking the values of a sequence such as a list, tuple, etc and
storing them in separate variables.
l=["Rapid", "Coders"]
r,c=l
print(r,type(r))
print(c,type(c))
Output
Rapid <class 'str'> Coders <class 'str'>
The number of variables on the left should be equal to the number of values in the iterable.
l=["Rapid", "Coders"]
r,c,d=l
print(r,c,d)
Output
ValueError: not enough values to unpack (expected 3, got 2)
Similarly, you can unpack a tuple, string, dict, etc.
t=("Excellent", "Coders")
a, b = t
print(a)
print(b)
print()
rapid="Rapid"
r,a,p,i,d=rapid
print(r,a,p,i,d)
print()
# On unpacking a dictionary, we get its keys
dic={"Good": "Coders", "Excellent": "Coders"}
g,e=dic
print(g)
print(e)
Output
Excellent Coders R a p i d Good Excellent
If you want to unpack only certain values, you can do something like -
r,_,p,_,d="Rapid"
print(r)
print(p)
print(d)
Output
R p d
If you do not want to unpack all the values as variables and store some of the values
together as a list, then you can do something like -
t=("Rapid", "Coders", "Excellent", "Coders")
*a,b,c=t
print(a,type(a))
print(b,type(b))
print(c,type(c))
print()
s="Rapid"
r,*p,d=s
print(r,type(r))
print(p,type(p))
print(d,type(d))
Output
['Rapid', 'Coders'] <class 'list'> Excellent <class 'str'> Coders <class 'str'> R <class 'str'> ['a', 'p', 'i'] <class 'list'> d <class 'str'>