Please note, this is a STATIC archive of website www.w3resource.com from 19 Jul 2022, cach3.com does not collect or store any user information, there is no "phishing" involved.
w3resource

Python: Remove all the elements of a given deque object

Python Collections: Exercise-10 with Solution

Write a Python program to remove all the elements of a given deque object.

Sample Solution:

Python Code:

import collections
odd_nums = (1,3,5,7,9)
odd_deque  = collections.deque(odd_nums)
print("Original Deque object with odd numbers:")
print(odd_deque)
print("Deque length: %d"%(len(odd_deque)))
odd_deque.clear()
print("Deque object after removing all numbers-")
print(odd_deque)
print("Deque length:%d"%(len(odd_deque)))

Sample Output:

Original Deque object with odd numbers:
deque([1, 3, 5, 7, 9])
Deque length: 5
Deque object after removing all numbers-
deque([])
Deque length:0

Flowchart:

Python Collections: Remove all the elements of a given deque object.

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to add more number of elements to a deque object from an iterable object.
Next: Write a Python program to copy of a deque object and verify the shallow copying process.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m