How Python for loop works

for loop in any language has almost the same syntax but in Python, it is slightly different.

for var in seq:
 condition or statement

here seq is any sequence that can be generated from any iterator object.
iterator objects in Python are those objects over which a loop can be iterated.
in python, everything is an object, all data types like string, integer, list, tuple, dictionary, float, and set can give you different classes of objects.
from these classes- list, tuple, dictionary, set, and string can provide you with the iterator objects, whereas integer does not provide iterator objects.
in the last, in for loop either we can provide a condition or a statement of a code which says that what needs to be done.
Let's take some examples and understand this.

Example-1: loop over a string.
```
  st="kapil"
  for var in st:
    print(var)

  #Result
  k
  a
  p
  i
  l
```
Example-2: loop over a list.

    ls=[1,2,3,4,5]
    for var in ls:
      print(var)

    #Result
    1
    2
    3
    4
    5

Example-3: loop over a set.

    s={1,2,4,5}
    for var in s:
      print(var)
    #Result
    1
    2
    3
    4
    5

Example-4: loop over a dictionary.

    d={'name':kapil,'id':101,'city':Delhi}
    for key,value in d.items():
       print("Key:", key,end="") 
       print("Value:" ,value)
    #Result
    name: kapil
    id: 101
    city: Delhi

How Python for loop works

Python for loop Syntax: