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Python: frozenset() function

frozenset() function

The frozenset() function returns a new frozenset object, optionally with elements taken from iterable.

Note: frozenset is a built-in class.

Version:

(Python 3.2.5)

Syntax:

frozenset([iterable])

Parameter:

Name Description Required /
Optional
iterable An iterable object, like list, set, tuple etc. Required

Return value:

frozenset object.

Example: Python frozenset() function

# tuple of words
words = ('apple', 'orange', 'mango', 'banana')

froSet = frozenset(words)
print('The frozen set is:', froSet)
print('The empty frozen set is:', frozenset())

Output:

The frozen set is: frozenset({'apple', 'mango', 'orange', 'banana'})
The empty frozen set is: frozenset()

Pictorial Presentation:

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

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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