Python For Loops Programming in Python

Python for loops iterate over sequences such as a dictionary, list, set, or tuple. The loop can access the elements within the sequence. Python usage of for loops are mostly used when you have a block of code which you want to repeat a fixed number of times. The Python for statement iterates over the members of a sequence in order, executing the block each time.

Python for loop

The keyword for in the loop iterates over the sequence and executes a sets of statements for each item in the dictionary, list, set, or tuple. If you are not sure what these are, take a look at the below pages to become familiar with sequences in Python:

• Python Dictionaries
• Python Lists
• Python Sets
• Python Tuples

Python for Loop in a Dictionary

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Python for Loop in a List

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Python for Loop in a Set

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Python for Loop in a Tuple

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Python continue Statement

The Python continue statement allows the continuance of an iteration after stopping or meeting the criteria of the loop.

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Python range() Function

The Python range() function allows a loop to return a sequence numbers that’s provided and increment by 1 to the specified number.

The below two examples will produce the same output. In Python, the range will or even the index will always start with 0, unless you specify the start number. In addition, the range number will increment until the values (10) or (0, 10) but not including the number 10.

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Python for…else Loop

The else keyword in a loop specified the code to be executed when the loop is completed.

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Python Nested Loop

Python loops can be nested and a nested loop can occur within another loop. Nested loops are very similar to nested if statements.

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