Efficiently Reading Python Dictionary Data with Loops

 Here's a python dictionary and the data it reads in a for loop and use the same for calculation. It's a helpful example of how to use a dictionary in real projects.

Python Dictionary program

yearly_revenue = {

   2017 : 1000000,

   2018 : 1200000,

   2019 : 1250000,

   2020 : 1100000,

   2021 : 1300000,

 }

total_income = 0

for year_id in yearly_revenue.keys():

  total_income+=yearly_revenue[year_id]

  print(year_id, yearly_revenue[year_id])

print(total_income)

print(total_income/len(yearly_revenue))

Output

2017 1000000

2018 1200000

2019 1250000

2020 1100000

2021 1300000

5850000

1170000.0

** Process exited - Return Code: 0 **

Press Enter to exit the terminal

How the program reads dictionary data

The input to for loop is dictionary keys. The total revenue sums up in the following code. The overall highlight of this program is the dictionary keys method.

References

• Python in-depth and sample programs