Python Function Unknown Number of Parameters. After working through this lesson, you’ll be … while loop - count up. Each item of the list element gets printed line by line. Parameters. Syntax of the For Loop. # python for9.py john raj lisa for loop condition failed! For-in Loop to Looping Through Each Element in Python. For in loops. Decisions. Previous Page. It works just like a list comprehension (but evaluating the iterated objects lazily and not building a new list from them), but you … This will run "as long as", or while a certain condition is true. Syntax for iterating_var in sequence: statements(s) If a sequence contains an expression list, it is evaluated first. It might sound like, we might not really need a “else” inside “for” if it only gets executed at the end of for loop iteration. For example: traversing a list or string or array etc. Loops. Output. Python Philosphy. As we mentioned earlier, the Python for loop is an iterator based for loop. Next Page . The for-in loop of Python is the same as the foreach loop of PHP. The for statement in Python differs a bit from what you may be used to in C or Pascal. Python for Loop Statements. Python Cloud Options. 5. In this case, it does so 4 times. microbit. NOTE: If there are, say 4 parameters in a function and a default value is defined for the 2nd one, then 3rd and 4th parameter should also be assigned a default value. It is a very simple example of how we can use a for loop in python. Python lets you unpack sequences on assignment: >>> foo = ('spam', 'ham') >>> bar, baz = foo >>> bar 'spam' >>> baz 'ham' The same can be done in a for loop:. In each iteration step a loop variable is set to a value in a sequence or other data collection. In Python, there is no C style for loop, i.e., for (i=0; i