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Python: getattr() function

getattr() function

The getattr() function returns the value of the named attribute of object and name must be a string.

Version

(Python 3.2.5)

Syntax:

getattr(object, name[, default])

Parameter:

Name Description Required /
Optional
object An object Required
name String that contains the attribute's name. Optional
default Value that is returned when the attribute is not found. Optional

Example: Python getattr() function

class Example:
    Age = 55
    Name = "Bishop"

Example = Example()
print('The age is:', getattr(Example, "Age"))
print('The name is:', Example.Name)

Output:

The age is: 55
The name is: Bishop

Pictorial Presentation:

Python: Built-in-function - getattr() function

Python Code Editor:

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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