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[chaoticag]

So, decided to get back to programming so I have something other than my internship on my hands to deal with, and since I'd prefer a career in some sort of applied computer science. Still, I never found following tutorials to be very intuitive to learning something. So I had a little thought...

Why not work on whatever it is I feel I need more practice in, and post what I did over here? I mean, when has depending on the charity of strangers online ever been a bad thing? I can screw up, people can point what I did wrong, and I can learn and move on.

Slight heads up though, I'm not exactly known for sticking to anything, so this might die out tomorrow, or the day after, or something, but at least I'm doing something.

Anyway, here's the first bit of python scripting I've done:

Spoiler (click to show/hide)

Code: [Select]

def main():
print ('Who are you?')
#s1 here is a variable, it prolly can use a better name, but it works for now, and this is a relatively small program.

#You may be wondering something if you know a thing about java or C but nothing about Python. Variables usually come in several flavors, and python seems to assign them based on how they appear. I tried putting str behind s1 to call it a string (IE a thingie that stores a number of characters in whatever order you desire [sorta] but that stops the program from executing right)

s1 = raw_input()
print ('What do you say?')
s2 = raw_input()

#Okay, so this bit is a teeny tiny bit tricky. You see those braces down there? You can have the program go ahead and stick something where they are if you put .format() right after it. It works with other strings, but it seems a teeny bit pointless to have something like .format('knights' , 'ni!') in there. To me anyway. Having strings that are defined beforehand seems better, and you can do some fun stuff here. This code can prolly be modified to pick two random things to say here and stick them in for added hilarity, for example. So it's basically more flexible, and flexibility in a program can be a very good thing when you need to modify it later on.

print 'We are the {} who say {}'.format(s1,s2)
return 0

Anyway, that's what I have for now, since I'm still learning the ropes of python. I'd still want to tackle input and output for a while, but I'll also be going over control statements quickly, then move onto classes and such.

Got a comment? Want to ask a question? Go ahead post. I might not be able to answer it, but I'm sure someone else here can.

[Max White]

Try making a class called 'Player' that takes an argument for their name.

[Darvi]

Yeah, that's pretty easy and OOP is always good to know.

[chaoticag]

Sure, I'll get to work right away.

[Darvi]

As a bonus, define the speech as a method.

[Max White]

Make it return a string, rather than print. It is nice to have model view separation.

[chaoticag]

Aaaand hurray! Run into some uncompilable code. Looks like the problem seems to be with me defining a function within the class Player. Here's the code so far, I'll look at the online help, while I figure out what went wrong.

Spoiler (click to show/hide)

Code: [Select]

def main():
class Player:
def namePlayer()
playerName = raw_input()
print(playerName)
def displayName()
print(playerName)

print ('YOU ARE A MIGHTY ADVENTURER, WHAT NAME HAVE YOU!?')
playerName()
return 0

It's kinda comment-less this time, so bear with me...

[Max White]

Define Player above main, not in it.

[Darvi]

Aaand ninja.

Also, you never really use the methods.

[chaoticag]

...

Well, it's been over a year since I dealt with programming. Still, that was pretty stupid (and educational). Still, it complains when I execute it.

Here is the updated code:

Spoiler (click to show/hide)

Code: [Select]

class Player:
def namePlayer()
playerName = raw_input()
print(playerName)
def displayName()
print(playerName)

def main():
print ('YOU ARE A MIGHTY ADVENTURER, WHAT NAME HAVE YOU!?')
playerName()
return 0

I get this error here when running the script:

Code: [Select]

  File "Player.py", line 26
    def namePlayer()
                   ^
SyntaxError: invalid syntax
Press any key to continue . . .
Oh, and it's been long enough that I've errr, forgotten what methods are.

[Darvi]

Meh, well, I never even knew what methods were until a couple years ago.

Anyways, I can't get python to run because of missing dll's, so I can't check right now.

[chaoticag]

I found the problem. Actually, let's play a game. See if you can spot the difference between there two statements

Code: [Select]

def namePlayer()
and

Code: [Select]

def namePlayer():
And just a hint, but I put in the first one, so guess which one I was supposed to use?

Anyway, now that that bug is sorted... well I think I'm running into another bug. (Well, other than the typo in main that I corrected asking for the wrong function). Looks like python automatically makes everything private within it's classes, including functions, so I can't call them from main.

Edit: hold on, I forgot something. The class is defined, but not actually used. Derp.

[Darvi]

Yeah, python as such has no private instances.

[chaoticag]

Okay forgot something (I sense a recurring theme here) but it looks like, the thing about classes, is you want them to be able to initialize them. In order to do that, you need a function that initializes said class. Once you have that, you can make an instance of said class... I think. Does this sound right?

[Darvi]

Uh, right. Lemme think.

There's the __init__ method (two underscores each), that always executes once you create an object based on said class.

So in your case if would look something like that:

Code: [Select]

def __init__(self):
          self.name='somebody'And then in the main loop you initialize the class:

Code: [Select]

Me = Player()Then you can assign it a name

Code: [Select]

Me.name = raw_input()
And then use it with

Code: [Select]

Me.displayName()
Of course I haven't actually done anything of the sort in a while and I can't check if it works right now, but that's about the idea.