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Well done!
You have completed Python Dates and Times!
You have completed Python Dates and Times!
Preview
In this video, we'll give you a speedy tour of the two projects you'll complete: the Birthday App and the Time Tracker. Let's get a sneak peek before diving into the details!
Resources
- Python File In/Out (14-minute workshop)
- CSV and JSON in Python (14-minute workshop)
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In this course, you'll learn to
use the built-in datetime module,
0:00
and the third party dateutil module.
0:05
You'll learn to work with the building
blocks, date, time, and datetime objects.
0:08
We'll also talk about calculating
the difference between two dates or
0:14
times using both timedelta and
relativedelta.
0:20
Finally we'll apply all of
this knowledge practically.
0:23
I've got two almost completed Python
apps that are missing some key
0:28
functionality to do with dates and times.
0:33
It is your mission to complete the apps
with me using your new found knowledge.
0:36
Our first project is a birthdayapp.
0:41
It works with a CSV file that
contains all your friends birthdays.
0:44
When we run the app with python3
main.py it loads the data
0:50
from the CSV and
users get presented with this menu.
0:55
We can press 1 to see
the upcoming birthdays, and
1:00
these are the birthdays that
are coming up in the next 90 days.
1:03
We can enter 2 to check someone's age.
1:08
Let's have a look at Arby.
1:10
We can see Arby's birthday
down to the months and days.
1:13
And we can also Press 3 to
compare two people's ages.
1:18
Let's compare number 4 and 5.
1:23
And here we can see each person's age,
which one's older,
1:25
and then the age difference
between the two people.
1:30
And finally, we can quit the app.
1:33
Our second project is a timetracker app.
1:38
Again, it works with a CSV file,
and it stores data on the time
1:41
that we've spent working on projects for
different clients.
1:46
When the app is run with python3 main.py,
1:50
it loads data from the CSV and
presents users with a menu.
1:54
We can press 1 to calculate totals.
1:59
It will allow us to select a client,
let's do Acme, and
2:03
then it will give us some options.
2:06
We can enter a date range using 1.
2:09
Let's try 2023-09-01 to
2023-09-10 to see the data.
2:12
Or we can calculate totals,
we'll grab Acme again,
2:20
and we'll check the last x days.
2:25
And we can enter let's
say the last 5 days.
2:29
And we can get the data that way.
2:32
Or we can calculate totals for
Acme once again,
2:35
and Press 3 for
retrieving all data on Acme and
2:38
we can see every single time tracking
entry we have for that client.
2:42
Now we can also enter 2 to
start tracking for a client.
2:47
We'll select a client, let's use Emmerton.
2:51
And then it'll ask us for
a short description,
2:55
let's say sketches, and
we can press any key to return to menu.
2:59
Now if we come to our CSV,
we can see that this entry has
3:04
been added, just without an end time.
3:09
Then we can Press 3 to stop
tracking our current project.
3:13
And when we come to our CSV,
3:17
we can see that the end time has
been added to the latest entry.
3:19
Now, if we calculate totals again, and
3:24
have a look at Emmerton, and
we'll retrieve all data,
3:28
we can see that our latest
entry sketches has been added.
3:32
And finally,
we can Press 4 to quit the app.
3:38
Don't worry if you haven't learned
how to work with CSVs yet.
3:42
I've already completed those parts.
3:46
All you'll need to think about
are the functions related to dates and
3:49
times, which you will learn
all about in the next section.
3:52
But if you are interested in learning
about CSVs check the teachers notes for
3:56
some links.
4:01
Now that we know what we're aiming for,
4:02
let's jump into learning all
about dates and times with Python
4:05
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