diff --git a/pupy/modules/memstrings.py b/pupy/modules/memstrings.py
index e8e262b3..5d38a7a2 100644
--- a/pupy/modules/memstrings.py
+++ b/pupy/modules/memstrings.py
@@ -97,7 +97,7 @@ class MemStrings(PupyModule):
                         last_log = open(path, 'w+')
                         self.success('{} {} -> {}'.format(name, pid, path))
 
-                    except Exception, e:
+                    except Exception as e:
                         self.error('{} {}: {}'.format(name, pid, e))
 
                 for s in strings:
diff --git a/pupy/modules/shell_exec.py b/pupy/modules/shell_exec.py
index d3621308..1536856b 100644
--- a/pupy/modules/shell_exec.py
+++ b/pupy/modules/shell_exec.py
@@ -7,6 +7,7 @@ from argparse import REMAINDER
 
 __class_name__="ShellExec"
 
+
 @config(cat="admin")
 class ShellExec(PupyModule):
     """ execute shell commands on a remote system """
@@ -24,7 +25,8 @@ class ShellExec(PupyModule):
         cls.arg_parser = PupyArgumentParser(prog='shell_exec', description=cls.__doc__)
         cls.arg_parser.add_argument('-X', '--no-shell', action='store_true', help='Do not execute command in shell')
         cls.arg_parser.add_argument('-S', '--set-uid', help='Set UID for user (posix only)')
-        cls.arg_parser.add_argument('-H', '--hide', action='store_true', help='Launch process on background (only for windows)')
+        cls.arg_parser.add_argument('-H', '--hide', action='store_true', help='Launch process on background '
+                                                                              '(only for windows)')
         cls.arg_parser.add_argument('-c', '--codepage', default=None, help='decode using codepage')
         cls.arg_parser.add_argument(
             'argument',
@@ -42,7 +44,7 @@ class ShellExec(PupyModule):
             try:
                 self.terminate, get_data = check_output(
                     cmdline, shell=not args.no_shell, encoding=args.codepage, suid=args.set_uid)
-            except Exception, e:
+            except Exception as e:
                 self.error(' '.join(x for x in e.args if type(x) in (str, unicode)))
                 return
 
@@ -66,7 +68,7 @@ class ShellExec(PupyModule):
                 p = start_hidden_process(args.argument)
                 self.success("Process created with pid %s" % p.pid)
 
-            except Exception, e:
+            except Exception as e:
                 self.error("Error creating the process: %s" % e)
         else:
             self.error('--hide option works only for Windows hosts')
diff --git a/pupy/packages/all/pupyutils/safepopen.py b/pupy/packages/all/pupyutils/safepopen.py
index 1f12bed9..6b38b7e0 100644
--- a/pupy/packages/all/pupyutils/safepopen.py
+++ b/pupy/packages/all/pupyutils/safepopen.py
@@ -11,6 +11,7 @@ import os
 
 ON_POSIX = 'posix' in sys.builtin_module_names
 
+
 def read_pipe(queue, pipe, bufsize):
     completed = False
     returncode = None
@@ -19,7 +20,7 @@ def read_pipe(queue, pipe, bufsize):
         try:
             returncode = pipe.poll()
             completed = returncode is not None
-        except:
+        except Exception:
             continue
 
         try:
@@ -36,6 +37,7 @@ def read_pipe(queue, pipe, bufsize):
 
     queue.put(returncode)
 
+
 def prepare(suid):
     import pwd
 
@@ -48,19 +50,19 @@ def prepare(suid):
             else:
                 userinfo = pwd.getpwuid(suid)
                 sgid = userinfo.pw_gid
-        except:
+        except Exception:
             pass
 
         try:
             path = os.ttyname(sys.stdin.fileno())
             os.chown(path, suid, sgid)
-        except:
+        except Exception:
             pass
 
         try:
             os.initgroups(userinfo.pw_name, sgid)
             os.chdir(userinfo.pw_dir)
-        except:
+        except Exception:
             pass
 
         try:
@@ -70,7 +72,7 @@ def prepare(suid):
             else:
                 os.setgid(suid)
                 os.setuid(suid)
-        except:
+        except Exception:
             pass
 
     os.setsid()
@@ -147,7 +149,7 @@ class SafePopen(object):
                 close_cb()
                 return
 
-        except Exception, e:
+        except Exception as e:
             if read_cb:
                 read_cb("[ UNKNOWN ERROR: {} ]\n".format(e))
 
@@ -216,12 +218,14 @@ class SafePopen(object):
         self._pipe.stdin.write(data)
         self._pipe.stdin.flush()
 
+
 def safe_exec(read_cb, close_cb, *args, **kwargs):
     sfp = SafePopen(*args, **kwargs)
     sfp.execute(close_cb, read_cb)
 
     return sfp.terminate, sfp.get_returncode
 
+
 def check_output(cmdline, shell=True, env=None, encoding=None, suid=None):
     args = {
         'shell': shell,