To loop through a set of code a specified number of times, we can use the range() function, The range() function returns a sequence of numbers, starting from 0 by default, and increments by …

The while Loop. With the while loop we can execute a set of statements as long as a condition is true.

Note: This page shows you how to use LISTS as ARRAYS, however, to work with arrays in Python you will have to import a library, like the NumPy library.

Loop Through a Dictionary. You can loop through a dictionary by using a for loop. When looping through a dictionary, the return value are the keys of the dictionary, but there are methods to …

Python supports the usual logical conditions from mathematics: Equals: a == b; Not Equals: a != b; Less than: a < b; Less than or equal to: a <= b; Greater than: a > b; Greater than or equal …

As a Python developer you can choose to throw an exception if a condition occurs. To throw (or raise) an exception, use the raise keyword.

The for loop actually creates an iterator object and executes the next() method for each loop.

As we deal with multi-dimensional arrays in numpy, we can do this using basic for loop of python. If we iterate on a 1-D array it will go through each element one by one. Example

There is no built-in function to reverse a String in Python. The fastest (and easiest?) way is to use a slice that steps backwards, -1.

For Loops. A for loop is used for iterating over a sequence, like looping over items in an array, a list, or a dictionary.