for-loops

for <loop variable> in <sequence>: <loop body>

Performs the loop body for every element of the sequence.

Components:: loop variable : variable; Variable that will take on the value of every element in the sequence at some point in the loop. Any valid variable is acceptable.; sequence : iterable object; e.g. Arrays, Lists, Strings; loop body :; Code to be executed for every element in sequence.
Results:: Output of loop body

pets

Index	ID	Species	Color	Weight	Age	Is_Cat	Owner_Comment
0	dog_001	dog	black	40	5	False	There are no bad dogs, only bad owners.
1	cat_001	cat	golden	1.5	0.2	True	My best birthday present ever!!!
2	cat_002	cat	black	15	9	True	**All you need is love and a cat.**
3	dog_002	dog	white	80	2	False	Love is a wet nose and a wagging tail.
4	dog_003	dog	black	25	0.5	False	Be the person your dog thinks you are.
5	ham_001	hamster	black	1	3	False	No, thank you!
6	ham_002	hamster	golden	0.25	0.2	False	No, thank you!
7	cat_003	cat	black	10	0	True	No, thank you!

for i in np.arange(pets.shape[0]):
    chosen_pet = pets.iloc[i]
    pet_id = chosen_pet.get('ID')
    species = chosen_pet.get('Species')
    age = chosen_pet.get('Age')
    weight = chosen_pet.get('Weight')
    print("This is a " + species + " with pet id " + str(pet_id) +', age ' + str(age) +', and weight '+str(weight))

This is a dog with pet id dog_001, age 5.0, and weight 40.0
This is a cat with pet id cat_001, age 0.2, and weight 1.5
This is a cat with pet id cat_002, age 9.0, and weight 15.0
This is a dog with pet id dog_002, age 2.0, and weight 80.0
This is a dog with pet id dog_003, age 0.5, and weight 25.0
This is a hamster with pet id ham_001, age 3.0, and weight 1.0
This is a hamster with pet id ham_002, age 0.2, and weight 0.25
This is a cat with pet id cat_003, age 0.0, and weight 10.0