try to fix

app.py

@@ -3,13 +3,20 @@
 import subprocess
 import os
 
+dotnet_check_command = "dotnet -list-sdk"
+dotnet_install_commands = [
+    "wget https://dot.net/v1/dotnet-install.sh -O dotnet-install.sh",
+    "chmod +x ./dotnet-install.sh",
+    "./dotnet-install.sh --version latest"
+]
+
 try:
     print(subprocess.check_output("dotnet -list-sdk"))
 except:
     print("Try to install .net dependency")
-    subprocess.run("wget https://dot.net/v1/dotnet-install.sh -O dotnet-install.sh")
-    subprocess.run("chmod +x ./dotnet-install.sh")
-    subprocess.run("./dotnet-install.sh --version latest")
+
+    for command in dotnet_install_commands:
+        os.system(command)
 
     print(subprocess.check_output("dotnet -list-sdk"))