Fix flake8 warnings

agent-winservice.py

@@ -61,10 +61,11 @@ def main():
     else:
         win32serviceutil.HandleCommandLine(AppServerSvc)
 
+
 if __name__ == '__main__':
     try:
         main()
     except (SystemExit, KeyboardInterrupt):
         raise
-    except:
+    except Exception:
         logger.exception("Exception:")

agent.py

@@ -6,14 +6,15 @@ import platform
 import subprocess
 import sys
 
-system = platform.system()
 
-if system == "Linux":
-    try:
-        chdir(sys.path[0])
-        subprocess.call(('pip', 'install', '-r', 'requirements.txt'))
-    except:
-        pass  # hope it works
+system = platform.system()  # noqa
+  # noqa
+if system == "Linux":  # noqa
+    try:  # noqa
+        chdir(sys.path[0])  # noqa
+        subprocess.call(('pip', 'install', '-r', 'requirements.txt'))  # noqa
+    except Exception:  # noqa
+        pass  # hope it works  # noqa
 
 
 from twisted.internet import reactor, defer
@@ -35,6 +36,7 @@ Context = get_context()
 logging.basicConfig()
 logger = logging.getLogger()
 level = environ.get('LOGLEVEL', 'INFO')
+
 logger.setLevel(level)
 
 
@@ -65,7 +67,7 @@ class SerialLineReceiver(SerialLineReceiverBase):
         logger.debug("Sending tick")
         try:
             self.send_status()
-        except:
+        except Exception:
             logger.exception("Twisted hide exception")
 
     def __init__(self):
@@ -135,7 +137,7 @@ class SerialLineReceiver(SerialLineReceiverBase):
             if argspec.keywords:
                 args.append("**" + argspec.keywords)
             return "%s(%s)" % (fun.__name__, ",".join(args))
-        except:
+        except Exception:
             return "<%s>" % type(fun).__name__
 
     def handle_command(self, command, args):
@@ -158,7 +160,7 @@ def main():
     try:
         from notify import register_publisher
         register_publisher(reactor)
-    except:
+    except Exception:
         logger.exception("Could not register notify publisher")
     logger.debug("Starting reactor.")
     reactor.run()

linux/_linuxcontext.py

@@ -8,7 +8,9 @@ from shutil import rmtree, move
 import subprocess
 import sys
 
-working_directory = sys.path[0]
+
+working_directory = sys.path[0]  # noqa
+
 
 import logging
 import fileinput
@@ -26,6 +28,7 @@ from context import BaseContext
 
 from twisted.internet import reactor
 
+
 logger = logging.getLogger()
 
 SSH_DIR = expanduser('~cloud/.ssh')
@@ -96,7 +99,7 @@ class Context(BaseContext):
         Context._linux_set_time(float(time))
         try:
             subprocess.call(['/etc/init.d/ntp', 'restart'])
-        except:
+        except Exception:
             pass
 
     @staticmethod
@@ -142,7 +145,7 @@ class Context(BaseContext):
                 for line in f.readlines():
                     try:
                         retval.append(PubKey.from_str(line))
-                    except:
+                    except Exception:
                         logger.exception(u'Invalid ssh key: ')
         except IOError:
             pass
@@ -170,7 +173,7 @@ class Context(BaseContext):
                 p = PubKey.from_str(key)
                 if p not in new_keys:
                     new_keys.append(p)
-            except:
+            except Exception:
                 logger.exception(u'Invalid ssh key: ')
         Context._save_keys(new_keys)
 
@@ -184,7 +187,7 @@ class Context(BaseContext):
                     new_keys.remove(p)
                 except ValueError:
                     pass
-            except:
+            except Exception:
                 logger.exception(u'Invalid ssh key: ')
         Context._save_keys(new_keys)
 

linux/ssh.py

 from base64 import decodestring
 from struct import unpack
 import binascii
+import unittest
 
 
 class InvalidKeyType(Exception):
@@ -56,8 +57,7 @@ class PubKey(object):
         return u'<PubKey: %s>' % unicode(self)
 
 
-import unittest
-
+# Unit tests
 
 class SshTestCase(unittest.TestCase):
     def setUp(self):
@@ -102,5 +102,6 @@ class SshTestCase(unittest.TestCase):
         s.add(self.p3)
         self.assertEqual(len(s), 2)
 
+
 if __name__ == '__main__':
     unittest.main()

notify.py

@@ -120,7 +120,7 @@ def notify(url):
             logger.debug("wall sent, trying to start browser")
             p = multiprocessing.Process(target=open_in_browser, args=(url, ))
             p.start()
-    except:
+    except Exception:
         logger.exception("Couldn't notify about %s" % url)
 
 
@@ -152,7 +152,7 @@ def mount_smb(url):
             stderr=subprocess.PIPE, stdout=subprocess.PIPE,
             stdin=subprocess.PIPE)
         logger.info('mount_smb(): %s', p.communicate())
-    except:
+    except Exception:
         logger.exception('Unhandled exception: ')
 
 
@@ -191,10 +191,11 @@ def search_display():
             if "DISPLAY" in envs and ":" in envs["DISPLAY"]:
                 p = os.stat(os.path.join("/proc", pid))
                 return envs["DISPLAY"], p.st_uid, p.st_gid
-        except:
+        except Exception:
             continue
     return None
 
+
 if win:
     from twisted.internet import protocol
     from twisted.protocols import basic
@@ -256,5 +257,7 @@ def main():
     args = parse_arguments()
     notify(args.url)
 
+
 if __name__ == '__main__':
+
     main()

watchdog-winservice.py

@@ -80,10 +80,11 @@ def main():
     else:
         win32serviceutil.HandleCommandLine(AppServerSvc)
 
+
 if __name__ == '__main__':
     try:
         main()
     except (SystemExit, KeyboardInterrupt):
         raise
-    except:
+    except Exception:
         logger.exception("Exception:")

windows/_win32context.py

 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-working_directory = r"C:\circle"
+working_directory = r"C:\circle"  # noqa
 
 from os.path import join
 

windows/network.py

@@ -29,7 +29,7 @@ def check_output2(cmd, shell=False):
         stdout, stderr = p.communicate()
         logger.info('%s: %s, %s', cmd, stdout, stderr)
         return stdout
-    except:
+    except Exception:
         logger.exception(
             'Unhandled exception in %s: ', cmd)
 

windows/win32virtio.py

@@ -78,7 +78,7 @@ class SerialPort(abstract.FileDescriptor):
                 self.hComPort,
                 self._overlappedRead,
                 0)
-        except:
+        except Exception:
             import time
             time.sleep(10)
             n = 0