python-metods tagged requests and articles
Categorized request examples and articles tagged with [python-metods] keyword How do I replace a string in Python?
To replace a string with a substring in Python, you can use the built-in string.replace(old, new [, count])) method. This method returns a copy of the string in which the old substring has been replaced by the new substring and does not change the original (strings in Python are immutable). If the substring is not found, a copy of the original string is returned. Optionally, you can limit the number of replacements by specifying the "count" argument. In this case, only the first "count" occurrences will be replaced. If the "count" argument is not specified, then all occurrences of the substring will be replaced. In this Python String Replace Example, we use the string.replace() method to change all occurrences of a substring in the string. Click Execute to run the Python String Replace Example online and see the result
How to use deque in Python?
The Python Deque module (known as a double-ended queue) is part of the built-in library known as collections. Deque contains methods for adding and removing items from either end of the queue and can create a queue from any iterable. Queues are similar to lists, except you can add and remove items either at the beginning (left) or the end (right). Deque is preferred over the list when you need faster add, get, and delete operations at both ends of the container. The deque module provides O(1) time complexity for add and get operations compared to a list, which provides O(n) time complexity. In this Python Deque Example, we use the deque.append() method to add an item to the end of the deque. Click Execute to run the Python Deque Example online and see the result.
To replace a string with a substring in Python, you can use the built-in string.replace(old, new [, count])) method. This method returns a copy of the string in which the old substring has been replaced by the new substring and does not change the original (strings in Python are immutable). If the substring is not found, a copy of the original string is returned. Optionally, you can limit the number of replacements by specifying the "count" argument. In this case, only the first "count" occurrences will be replaced. If the "count" argument is not specified, then all occurrences of the substring will be replaced. In this Python String Replace Example, we use the string.replace() method to change all occurrences of a substring in the string. Click Execute to run the Python String Replace Example online and see the result
How to use deque in Python?
The Python Deque module (known as a double-ended queue) is part of the built-in library known as collections. Deque contains methods for adding and removing items from either end of the queue and can create a queue from any iterable. Queues are similar to lists, except you can add and remove items either at the beginning (left) or the end (right). Deque is preferred over the list when you need faster add, get, and delete operations at both ends of the container. The deque module provides O(1) time complexity for add and get operations compared to a list, which provides O(n) time complexity. In this Python Deque Example, we use the deque.append() method to add an item to the end of the deque. Click Execute to run the Python Deque Example online and see the result.