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Python Arrow Module: Create a 3-tuple ISO year, ISO week number, ISO weekday and an ISO 8601 formatted representation of the date and time

Arrow Module: Exercise-20 with Solution

Write a Python program to create a 3-tuple ISO year, ISO week number, ISO weekday and an ISO 8601 formatted representation of the date and time.

Sample Solution:

Python Code:

import arrow
a = arrow.utcnow()
print("Current datetime:")
print(a)
print("\n3-tuple - ISO year, ISO week number, ISO weekday:")
print(arrow.utcnow().isocalendar())
print("\nISO 8601 formatted representation of the date and time:")
print(arrow.utcnow().isoformat())

Sample Output:

Current datetime:
2019-06-04T06:20:28.087600+00:00

3-tuple - ISO year, ISO week number, ISO weekday:
(2019, 23, 2)

ISO 8601 formatted representation of the date and time:
2019-06-04T06:20:28.087600+00:00

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