Relative adresses in renpy

[mukashi]

I'm a beginner in renpy and i have such a problem:
I try to code like that

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init python:
    import fight
    Instance = fight.Fight("xml/be.xml")

Here the fight is a pythonic module and xml is a folder in the game folder. But in such way this xml is unreachable. I tried os.getcwd() and it shows that default adress is renpy folder. For example, no problems with this code

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init:
    image bg gh = "images/golden_horn.jpg"

My images are in the game folder.

[DragoonHP]

You need to use "renpy.loader.transfn()"
So it will be something like this:

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init python:
    import fight
    Instance = fight.Fight(renpy.loader.transfn("xml/be.xml"))

[Karl_C]

renpy.loader.transfn is not a documented API. Don't use it.

http://lemmasoft.renai.us/forums/viewto ... 7&#p380566

Is there an alternative?

[PyTom]

The right way to open a file is renpy.file.

[Karl_C]

The right way to open a file is renpy.file.

As mukashi apparently want to pass the relative path of a file to an external python package ("xml/be.xml", "fight") and renpy.file(fn) returns a read-only file-like object:

How could this be handled without modifying the external python package?

[PyTom]

What python package is it? Most take file-like objects instead of or in addition to filenames.

If you really want a real path, you can try os.path.join(config.gamedir, "myfile.xml"). But that will break on iOS and Android, and if you archive the file, etc...

[Karl_C]

Sorry for late reply.

What python package is it? Most take file-like objects instead of or in addition to filenames.

In my case it's pyAIML, an interpreter for AIML (the Artificial Intelligence Markup Language), implemented entirely in standard Python. It's normally used for chatterbots or 'semi-intelligent' desktop utilities.

If you really want a real path, you can try os.path.join(config.gamedir, "myfile.xml"). But that will break on iOS and Android, and if you archive the file, etc...

I quick test shows that it seems to work from within RenPy, at least on my Linux machine (Eileens response in the screenshot below was generated by pyAIML and a freely available AIML set):


BTW: You pointed out already, that renpy.file and file can be used to copy a file out of a .rpa to disk. Is it possible to write a temp file with RenPy that won't break on iOS and Android? What would be the suggested location?

[Asahel]

Sorry for late reply.

I quick test shows that it seems to work from within RenPy, at least on my Linux machine (Eileens response in the screenshot below was generated by pyAIML and a freely available AIML set):

Karl_C this is awesome, could you please share a demo for ren'py - pyAIML integration? I really want a chatbot /digital assistant in Ren'py and I've been trying to run pyAIML from within ren'py without success.

[Karl_C]

Karl_C this is awesome, could you please share a demo for ren'py - pyAIML integration? I really want a chatbot /digital assistant in Ren'py and I've been trying to run pyAIML from within ren'py without success.

A big, fat warning: As I'm not a Python programmer, I'm quite sure that there are much better ways to do it. But if you only want a working example, here you are:

script.rpy:

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# You can place the script of your game in this file.

# Declare images below this line, using the image statement.
# eg. image eileen happy = "eileen_happy.png"

# Declare characters used by this game.
define e = Character('Eileen', color="#ffffff")

init:
    $ import AIMLBot
    

# The game starts here.
label start:

    e "This is a test of pyAIML from within RenPy"

    $ renpy.free_memory()

    $ user_input =[]
    while True:

        $ user_input = renpy.input("Type some input")
        $ user_input = user_input.strip()
        $ response = AIMLBot.AimlBot().run(user_input)
    
        if user_input == "quit":
            jump End_of_loop
        e "[response]"

label End_of_loop:

    e "End of loop"

    return

AIMLbot.py in the "game" directory:

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import aiml
import os.path
import sys


class AimlBot:
	brainFileName = "standard.brn"
	kernel = aiml.Kernel()
	botName = "Eileen"

	def __init__(self):
		self.kernel.verbose(False)
		self.kernel.setBotPredicate("name", self.botName)

		if os.path.isfile(self.brainFileName):
		    self.kernel.bootstrap(brainFile = self.brainFileName)
		else:
		    self.kernel.bootstrap(learnFiles = "std-startup.xml", commands = "load aiml b")
		    self.kernel.saveBrain(self.brainFileName)

	# runs bot on input and returns answer
	def run(self, inputString):
		answer =  self.kernel.respond(inputString) # second argument is string
		#self.kernel.saveBrain(self.brainFileName)
		return answer

You also need to have:

• this pyAIML zip file extracted in the "game" directory (you'll have to rename the subdirectory from "pyAIML-master" to "aiml")
• The standard AIML set, extracted in the in the subdirectory "standard"
• a "std-startup.xml" in the "game" directory (you'll have to edit it, so that it can find the "standard" directory with your AIML set

Good luck!

[Asahel]

I can't believe my luck, I seriously thought I necroed the thread. Thank you so much!
I have pyAIML and ALICE set running on my linux machine without a hitch, but I couldn't for the life of me make it run with ren'py. I'm not a programmer either (understatement), just want my own linux chatbot and virtual assistant.

I'll give it a try, hope it works for me too!

[Asahel]

It doesn't open, I'm getting an encoding error. It is supposed to be UTF-8, right?

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UnicodeDecodeError: 'utf8' codec can't decode byte 0xd4 in position 47219: invalid continuation byte

I don't want to hijack this thread further, I will post a separate thread for help.

[jeffster]

The right way to open a file is renpy.file.

It does not find files like 'game/script.rpy':

File "game/screens.rpy", line 1445, in <module>
with renpy.file(fn) as f:
IOError: Couldn't find file 'game/script.rpy'.

So I have to ridiculously strip a part of the filename like this:

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screen this_script():
    default fn = renpy.get_filename_line()[0]
    python:
        if fn[0:5] == "game/":
            fn = fn[5:]
        with renpy.file(fn) as f:
            lines = f.readlines()

Is there a way to do that better?