Update main.py

main.py

@@ -1,3 +1,5 @@
-import os 
-os.system("curl -L "https://huggingface.co/datasets/khushwant04/Research-Papers/resolve/main/research-papers.tar?download=true" -o research-papers.tar")
-os.system("tar -xf research-papers.tar")
+import subprocess
+
+# Use subprocess.run for better practice
+subprocess.run(['curl', '-L', 'https://huggingface.co/datasets/khushwant04/Research-Papers/resolve/main/research-papers.tar?download=true', '-o', 'research-papers.tar'], check=True)
+subprocess.run(['tar', '-xf', 'research-papers.tar'], check=True)