main: bail if python 3.6 or below

closes #964

capa/main.py

@@ -870,7 +870,7 @@ def handle_common_args(args):
     # disable vivisect-related logging, it's verbose and not relevant for capa users
     set_vivisect_log_level(logging.CRITICAL)
 
-    # Since Python 3.8 cp65001 is an alias to utf_8, but not for Pyhton < 3.8
+    # Since Python 3.8 cp65001 is an alias to utf_8, but not for Python < 3.8
     # TODO: remove this code when only supporting Python 3.8+
     # https://stackoverflow.com/a/3259271/87207
     import codecs
@@ -942,8 +942,8 @@ def handle_common_args(args):
 
 
 def main(argv=None):
-    if sys.version_info < (3, 6):
-        raise UnsupportedRuntimeError("This version of capa can only be used with Python 3.6+")
+    if sys.version_info < (3, 7):
+        raise UnsupportedRuntimeError("This version of capa can only be used with Python 3.7+")
 
     if argv is None:
         argv = sys.argv[1:]