Tutorials for python

[tigris649]

Hi I'm new to programming and I've been reading over the programming section here for awhile, to find out more about programming and which language I should learn. I chose to go with python because many people here said it is a good language to start with. So I've downloaded it and am ready to try it out. Now I've googled "python tutorials" but i do not know which one to use. I was wondering if any you all could recommend me a good tutorial for python beginners.

Thanks

 

[kamper]

http://docs.python.org/tut/ isn't half bad.

 

[degibson]

Originally posted by: kamper
http://docs.python.org/tut/ isn't half bad.

If you start with this one, start at the very beginning, and read the beginning very carefully (perhaps twice), to make sure you have a good understanding of the high-level concepts before you even start the programming parts.

 

[tigris649]

Originally posted by: kamper
http://docs.python.org/tut/ isn't half bad.

Thanks I guess I'll try that one out 🙂

 

[tigris649]

Well I decided to go with this tutorial Texthttp://www.upriss.org.uk/python/session1.html other one seemed to complicated. I need help on this exercise I'm working on though. The exercise is to Write a script that asks a user for a number. The script adds 3 to that number. Then multiplies the result by 2, subtracts 4, subtracts twice the original number, adds 3, then prints the result.

I cannot figure out how to get it to subtract twice the original number :/

here is my code so far

number = input ("Please input a number")
a = number
a = (a + 3) * 2 - 4
print a

what do I need to do to subtract twice the original number?

 

[Dimmu]

Is this the correct order of operations for that exercise?

In any case you subtract twice the original number by: -2*original variable name

number = input("Please input a number")
a = ((2*(num+3)-4)-2*num)-3
print a

 

[tigris649]

Originally posted by: Dimmu
Is this the correct order of operations for that exercise?

In any case you subtract twice the original number by: -2*original variable name

number = input("Please input a number")
a = ((2*(num+3)-4)-2*num)-3
print a

Yep thats it thanks Dimmu

 

[Dimmu]

Originally posted by: tigris649

Originally posted by: Dimmu
Is this the correct order of operations for that exercise?

In any case you subtract twice the original number by: -2*original variable name

number = input("Please input a number")
a = ((2*(num+3)-4)-2*num)-3
print a

Yep thats it thanks Dimmu

No worries. Happy to help.

 

[kamper]

There are at least two bugs in that code (exercise for tigris to find them 🙂)

 

[tigris649]

Originally posted by: kamper
There are at least two bugs in that code (exercise for tigris to find them 🙂)

Do you mean how Dimmu put "num" instead of "number"? If so then I recognized that 😀 and changed it to number when writing the program.

 

[Dimmu]

Originally posted by: tigris649

Originally posted by: kamper
There are at least two bugs in that code (exercise for tigris to find them 🙂)

Do you mean how Dimmu put "num" instead of "number"? If so then I recognized that 😀 and changed it to number when writing the program.

Haha. I didn't even realize that until it was pointed out. I copied your original code, but only kept the first line and wrote the out the other two. 😱

 

[kamper]

Uh, never mind, I totally didn't read the documentation for input() well enough and imagined a bug where there wasn't one. 😱

But yeah, num/number was the obvious real one...