What can you iterate over using a for loop in Python?

In Python, you can iterate over several types of objects using a for loop, including:

1. Lists: You can iterate over the elements of a list.

   my_list = [1, 2, 3, 4]
   for item in my_list:
       print(item)

2. Tuples: Similar to lists, you can iterate over the elements of a tuple.

   my_tuple = (1, 2, 3, 4)
   for item in my_tuple:
       print(item)

3. Strings: You can iterate over each character in a string.

   my_string = "Hello"
   for char in my_string:
       print(char)

4. Dictionaries: You can iterate over the keys, values, or key-value pairs in a dictionary.

   my_dict = {'a': 1, 'b': 2}
   for key in my_dict:
       print(key, my_dict[key])  # Iterating over keys
   for value in my_dict.values():
       print(value)  # Iterating over values
   for key, value in my_dict.items():
       print(key, value)  # Iterating over key-value pairs

5. Sets: You can iterate over the elements of a set.

   my_set = {1, 2, 3, 4}
   for item in my_set:
       print(item)

6. Files: You can iterate over the lines in a file.

   with open('myfile.txt') as f:
       for line in f:
           print(line)

7. Ranges: You can iterate over a range of numbers using the range() function.

   for i in range(5):
       print(i)  # Prints numbers from 0 to 4

These are some of the common objects you can iterate over using a for loop in Python.