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markovbot.py
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markovbot.py
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from pymarkovchain import MarkovChain
# You'll need the pymarkovchain package. See README
from errbot.botplugin import BotPlugin
from errbot import botcmd
import requests
class MarkovBot(BotPlugin):
def __init__(self):
self.markov = MarkovChain()
@botcmd
def talk(self, mess, args):
""" Generate a sentence based on database """
return self.markov.generateString()
@botcmd
def complete(self, mess, args):
""" Try to complete a sentence """
return self.markov.generateStringWithSeed(args)
@botcmd
def gendbfromfile(self, mess, args):
""" Generate markov chain word database """
try:
with open(args) as txtFile:
txt = txtFile.read()
except IOError as e:
return 'Error: could not open text file'
# At this point, we've got the file contents
if self.markov.generateDatabase(txt):
return 'Done.'
else:
return 'Error: Could not generate database'
@botcmd
def gendbfromstring(self, mess, args):
if self.markov.generateDatabase(args):
return 'Done.'
else:
return 'Error: Could not generate database from String'
@botcmd
def gendbfromurl(self, mess, args):
req = requests.get(args)
if req.ok and self.markov.generateDatabase(req.content):
return 'Done.'
else:
return 'Error: Could not generate database from URL'