from sklearn.feature_extraction.text import TfidfTransformer,CountVectorizer
from sklearn.feature_extraction import DictVectorizer
from sklearn.naive_bayes import MultinomialNB
from sklearn.pipeline import Pipeline, FeatureUnion
import sys
import yaml
from sklearn.preprocessing import OneHotEncoder
from sklearn.preprocessing import LabelEncoder


text_clf = Pipeline([('vect', CountVectorizer()),('tfidf', TfidfTransformer()),('clf', MultinomialNB())])

text_ohc = Pipeline([('ohc', OneHotEncoder()),('clf', MultinomialNB())])

combined_features = FeatureUnion([('vect1', CountVectorizer()),('vect2', CountVectorizer())])


enc=OneHotEncoder()
with open("example_1.yaml", 'r') as stream:
    try:
        train=yaml.safe_load(stream)
    except yaml.YAMLError as exc:
        print(exc)

tc=text_clf.fit(train["data"],train["target"])