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: Documentation of a built-in-function

Python Class ( Basic ): Exercise-4 with Solution

'builtins' module provides direct access to all 'built-in' identifiers of Python.
Write a python program which import the abs() function using the builtins module, display the documentation of abs() function and find the absolute value of -155.

Sample Solution:

Python Code:

import builtins 
help(builtins.abs)
print(builtins.abs(-155))

Sample Output:

Help on built-in function abs in module builtins:

abs(x, /)
    Return the absolute value of the argument.

155

Flowchart:

Flowchart: Documentation of a built-in-function.

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:

Contribute your code and comments through Disqus.

Previous: Write a Python program to create an instance of a specified class and display the namespace of the said instance.
Next: Define a Python function student(). Using function attributes display the names of all arguments.

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