application_vnd.jupyter.stderr_output_1.png
from subprocess import check_output

import pandas as pd
from sklearn.model_selection import train_test_split
from sklearn.metrics import classification_report
from sklearn.ensemble import ExtraTreesClassifier, RandomForestClassifier, GradientBoostingClassifier
from sklearn.neighbors import KNeighborsClassifier
import time
from subprocess import check_output
print(check_output(['ls', '../input']).decode('utf8'))