Update app.py

app.py

@@ -4,13 +4,7 @@ import sys
 import subprocess
 
 subprocess.check_call([sys.executable, '-m', 'pip', 'install', 
-'xgboost'])
-subprocess.check_call([sys.executable, '-m', 'pip', 'install', 
-'sklearn'])
-subprocess.check_call([sys.executable, '-m', 'pip', 'install', 
-'pymystem3'])
-subprocess.check_call([sys.executable, '-m', 'pip', 'install', 
-'pandas'])
+'xgboost sklearn pymystem3 pandas'])
 
 import pandas as pd
 from sklearn.utils import shuffle