﻿ Python: Make an iterator that returns evenly spaced values starting with a specified number and step - w3resource

# Python: Make an iterator that returns evenly spaced values starting with a specified number and step

## Python Itertools: Exercise-4 with Solution

Write a Python program to construct an infinite iterator that returns evenly spaced values starting with a specified number and step.

Sample Solution:

Python Code:

``````import itertools as it
start = 10
step = 1
print("The starting number is ", start, "and step is ",step)
my_counter = it.count(start, step)
# Following  loop will run for ever
print("The said function print never-ending items:")
for i in my_counter:
print(i)
```
```

Sample Output:

```The starting number is  10 and step is  1
The said function print never-ending items:
10
11
12
13
14
15
16
17
18
19
20
....

25869
....
1
```

Python Code Editor:

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## Python: Tips of the Day

Inverts a dictionary with non-unique hashable values:

Example:

```def tips_collect_dictionary(obj):
inv_obj = {}
for key, value in obj.items():
inv_obj.setdefault(value, list()).append(key)
return inv_obj
ages = {
"Owen": 25,
"Jhon": 25,
"Pepe": 15,
}
print(tips_collect_dictionary(ages))
```

Output:

```{25: ['Owen', 'Jhon'], 15: ['Pepe']}
```

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