Add application file

app.py

@@ -5,12 +5,17 @@ import streamlit as st
 import base64
 import subprocess # process in the os
 from subprocess import STDOUT #os process manipuation
-import os,sys
+import os
 import camelot as cam # extracting tables from PDFs 
 
 # to run this only once and it's cached
+def gh():
+    """install ghostscript on the linux machine"""
+    proc = subprocess.Popen('apt-get install -y ghostscript', shell=True, stdin=None, stdout=open(os.devnull,"wb"), stderr=STDOUT, executable="/bin/bash")
+    proc.wait()
+
+gh()
 
-sys('apt-get install -y ghostscript')
 st.title("PDF Table Extractor")
 
 input_pdf = st.file_uploader(label = "", type = 'pdf')