Python Exercises

[Aziz]

Python's got a good tutorial on their site for those who are already familiar with programming. Its fast and in-depth.

And while I really liked my own high school CS (much better than most of my college ones), I wish he would have had the interest for it as you do, McKenzie. Do you have any advanced python examples? I've got the attachment, but I'm at work so I can't look at it too much.

(BTW, did you know a Mr. Nehmetellah that taught there (I think)? He was my CommTech teacher a couple years ago at Cardinal Carter)

[McKenzie]

There are a number of good tutorials out there, but I find where most of them lacking is interesting assignments/exercises to challenge the reader and force them to apply what they have just read. It is by doing that you learn.

You will find no advanced examples in the attachment. I have a bunch if you are interested, but I find basic examples are better. They allow you to focus on just one issue at a time.

(aside, I taught with Mr. N. for one year. I didn't know him very will but he seemed cool to me)

[taylankaraman]

Thanks McKenzie! The exercises are great.
Greetings from Turkey!

[Sniper4Life]

k ive got a little questionn...i wanna know if my answer to the very first question on unit 2.1 is SUFFICIENT

code:

x=123 print x*3.14*2

by your standerds if it is sufficientt
it answers the question...but...still...doesnt seem like enough to me.....

[Zeroth]

Thats it. With Python, sometimes it seems like it makes programming TOO easy.

[Sniper4Life]

thats what makes it perfect for beginners

Ex1:

x=123 print x*3.14*2

Ex2:

r = input("Radius: ") print " " print"The area of your cirlce is: " print r*r*3.14

Ex3:

c=input ("How much Canadian dollars you have: ") print " " print "You will have ", c*1.6156, " Euros after your money has been converted"

Ex4:

c=raw_input ("First name: ") r=raw_input ("Last Name: ") print " " print r,",", c

McKenzie can you tell me if my answers are OK?

[Tony]

code:

print r,",", c

That is not ok. Whitespace is your friend. So are proper variable names.

[Sniper4Life]

Tony @ Sun Apr 12, 2009 8:07 pm wrote:

That is not ok. Whitespace is your friend. So are proper variable names.

its just 4 lines of coding...is there rlly a need for proper variable names?
its not that bad...it doesnt nessesscarily make the code BAD
and whitespace?

btw...this is the question

Gets the user?s first and last name and outputs them in reverse order with a comma between them.

also...what do you think about the OTHER codes?

[Tony]

Yes, there really (vowels are your friend as well, use them ) is a need to make your code easy to read and understand.

A 4 line function within a 10,000 line application is arguably still "just 4 lines of code".

If there are some terms that you don't understand, learn how to look them up quickly. I have keyboard shortcuts to Google, Wikipedia, and a Dictionary.

[Sniper4Life]

code:

firstpx=input ("First point's x coordinate: ") firstpy=input ("First point's y coordinate: ") print " " secondpx=input ("Second point's x coordinate: ") secondpy=input ("Second point's y coordinate: ") print " " print "First point:  ","(", firstpx,",",firstpy,")" print "Second point: ","(",secondpx,",",secondpy,")" print " " print "Distance: ""(",firstpx-secondpx,",",firstpy-secondpy,")"

there...are the new variables better now Tony?
satisfied?
woops i just realized this is a different code
o well....btw...how would you make it that when the Distance comes up...the numbers only go as far as 2 decimal places....????

[Alexmula]

use the round function

[Sniper4Life]

ya unluckily i dont know what that is......someone else told me it was %f"x"

but i thought it was like round(something something)

[Alexmula]

python.org has an online manual..

you can also try typing "print help()" in IDLE i think it you can also get help there

and yes there is a round function: round(x[n]) x being the number u want to round and n the number of decimal places i believe

[Sniper4Life]

dont worry im dont that question in the exercises now ^^
i even did introEx6...im in 2.2 questions now
unluckily for me...i dont know anything bout these:

- Concatenation (+)
- Multiplication (*)
- Slices
- Escape sequences
- len()
- String Methods
upper
lower
find
replace
count

ya...so its gonna be a bit hard for me...
i feel somewhat proud?
doing grade 11 exercises
lol they're easy exercises tho(in the beginning)...i seriously wish they had advanced math and like computer science in middle school...like an option for those things

middle school teaches how to use movie maker
lol

[wtd]

Sniper4Life @ Mon Apr 13, 2009 5:53 am wrote:

k ive got a little questionn...i wanna know if my answer to the very first question on unit 2.1 is SUFFICIENT

code:

x=123 print x*3.14*2

Again, get into the habit of using whitespace.

code:

x = 123 print x * 3.14 * 2