Don't use bare 'except:'

[youtube-dl] / youtube_dl / update.py

diff --git a/youtube_dl/update.py b/youtube_dl/update.py
index 941db3c8f968fdcc3f134a596c9cba4b50273dd9..de3169eef1d6ec29d82a60b2f4b6a68f49d7dd4e 100644 (file)
--- a/youtube_dl/update.py
+++ b/youtube_dl/update.py
@@ -13,13 +13,13 @@ from .compat import (
     compat_str,
     compat_urllib_request,
 )
+from .utils import make_HTTPS_handler
 from .version import __version__
 
 
 def rsa_verify(message, signature, key):
     from struct import pack
     from hashlib import sha256
-    from sys import version_info
 
     assert isinstance(message, bytes)
     block_size = 0
@@ -59,10 +59,13 @@ def update_self(to_screen, verbose):
         to_screen('It looks like you installed youtube-dl with a package manager, pip, setup.py or a tarball. Please use that to update.')
         return
 
+    https_handler = make_HTTPS_handler({})
+    opener = compat_urllib_request.build_opener(https_handler)
+
     # Check if there is a new version
     try:
-        newversion = compat_urllib_request.urlopen(VERSION_URL).read().decode('utf-8').strip()
-    except:
+        newversion = opener.open(VERSION_URL).read().decode('utf-8').strip()
+    except Exception:
         if verbose:
             to_screen(compat_str(traceback.format_exc()))
         to_screen('ERROR: can\'t find the current version. Please try again later.')
@@ -73,14 +76,14 @@ def update_self(to_screen, verbose):
 
     # Download and check versions info
     try:
-        versions_info = compat_urllib_request.urlopen(JSON_URL).read().decode('utf-8')
+        versions_info = opener.open(JSON_URL).read().decode('utf-8')
         versions_info = json.loads(versions_info)
-    except:
+    except Exception:
         if verbose:
             to_screen(compat_str(traceback.format_exc()))
         to_screen('ERROR: can\'t obtain versions info. Please try again later.')
         return
-    if not 'signature' in versions_info:
+    if 'signature' not in versions_info:
         to_screen('ERROR: the versions file is not signed or corrupted. Aborting.')
         return
     signature = versions_info['signature']
@@ -121,7 +124,7 @@ def update_self(to_screen, verbose):
             return
 
         try:
-            urlh = compat_urllib_request.urlopen(version['exe'][0])
+            urlh = opener.open(version['exe'][0])
             newcontent = urlh.read()
             urlh.close()
         except (IOError, OSError):
@@ -167,7 +170,7 @@ start /b "" cmd /c del "%%~f0"&exit /b"
     # Zip unix package
     elif isinstance(globals().get('__loader__'), zipimporter):
         try:
-            urlh = compat_urllib_request.urlopen(version['bin'][0])
+            urlh = opener.open(version['bin'][0])
             newcontent = urlh.read()
             urlh.close()
         except (IOError, OSError):