Fundamentals of Programming, Karakoram International University, Gilgit, Pakistan.

1. Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
BS GIS Instructor: Inzamam Baig
Lecture 12
Fundamentals of Programming

2. Datetime Module
import datetime
dir(datetime)

3. Creating Date
datetime.date(YYYY,MM,DD)
date_is = datetime.date(1969,7,20)

4. print(date_is.year)
print(date_is.month)
print(date_is.day)

5. Creating Time
datetime.time(HH,MM,SS)
t = datetime.time(00,10,01)

6. print(t.hour)
print(t.minute)
print(t.second)

7. Datetime
datetime.datetime(YYYY,MM,DD,HH,MM,SS)

8. Current Datetime
now = datetime.datetime.today()
print(now.microsecond)

9. Timedelta
datetime.timedelta(<no. of days>)
moon_landing = datetime.date(1969, 7 ,20)
moon_landing += datetime.timedelta(100) + moon_landing

10. Datetime Format
strftime('%A %B %d, %Y')
date_now = "Today is {:%A %B %d, %Y}"
print(date_now.format(date_is))

12. OS Module
import os

13. Checking Current Directory
os.getcwd()

14. Changing Directory
os.chdir('<directory_name>')

15. Listing Directories And Files
os.listdir()

16. Creating New Directory
os.mkdir('<directory_name>’)
os.mkdir('<parent_dir>/<child_dir>')

17. Removing Directories
os.rmdir('<directory_name>’)
os.removedirs('<parent_dir>/<child_dir>')

18. Renaming A File Or Directory
os.rename('<old_name>','<new_name>')

19. Checking File Info
os.stat('<file_name>')

20. Directory Tree
os.walk

21. Checking If The File Exits
os.path.exists('<file_name>')

22. Checking Size In Bytes
os.path.getsize('<file_name>')

23. Absolute Path Of A File
os.path.abspath('')