Don't raise unless exception occurs.

This commit adds a check before `raise last_error`.

`last_error` could still be `None`, in which case `raise None` itself throws an exception, which is probably not what you want.

Co-authored-by: Benn Snyder <benn.snyder@gmail.com>
Signed-off-by: Benn Snyder <benn.snyder@gmail.com>
Reviewed-by: Benn Snyder <benn.snyder@gmail.com>

Author: scovetta

CMakeLists.txt

@@ -47,7 +47,7 @@ include (SetupDirectories)
 
 set (PROJECT_VER_MAJOR 0)
 set (PROJECT_VER_MINOR 6)
-set (PROJECT_VER_PATCH 4)
+set (PROJECT_VER_PATCH 5)
 set (PROJECT_VER
   "${PROJECT_VER_MAJOR}.${PROJECT_VER_MINOR}.${PROJECT_VER_PATCH}")
 set (PROJECT_APIVER

src/fwfetcher.py

@@ -534,7 +534,8 @@ def urlopen_timeout_retry(request, attempts = 5):
         except socket.timeout as e:
             print("Timeout! ", e)
             last_error = e
-    raise last_error
+    if last_error:
+        raise last_error
 
 def getFileOrURL(filename, url):
     # Check if a file named filename exists on disk.