pep8 blank lines fixes

flake8 --select W391,E302,E301,E304

autopep8 can't fix W391 even though it claims it can.
Fixed using a simple custom script.

contrib/munin/boobank-munin

@@ -28,6 +28,7 @@ from weboob.core import Weboob, CallErrors
 from weboob.capabilities.bank import CapBank
 from weboob.exceptions import BrowserIncorrectPassword
 
+
 class BoobankMuninPlugin(object):
     def __init__(self):
         if 'weboob_path' in os.environ:

contrib/windows-install/convertPNG2ICO.py

@@ -33,6 +33,7 @@ import os
 # bpp: bits per pixel, could *only* be 24 or 32!
 # return: an "array" of BYTES which, if write to file, is a size*size ico file
 
+
 def genico(data, size=16, bpp=24):
     from array import array
     a = array('B')
@@ -80,7 +81,6 @@ def genico(data, size=16, bpp=24):
     return a
 
 
-
 # x,y indicate the hotspot position
 # simply set the type/hotspot(x&y) after generates the icon
 def gencur(data, size=16, bpp=24, x=0, y=0):
@@ -89,7 +89,6 @@ def gencur(data, size=16, bpp=24, x=0, y=0):
     return a
 
 
-
 #C:\Python27\Lib\site-packages\weboob-0.g-py2.7.egg\share\icons\hicolor\64x64\apps
 
 if __name__ == "__main__":

contrib/windows-install/ez_setup.py

@@ -32,12 +32,15 @@ except ImportError:
 DEFAULT_VERSION = "1.1.6"
 DEFAULT_URL = "https://pypi.python.org/packages/source/s/setuptools/"
 
+
 def _python_cmd(*args):
     args = (sys.executable,) + args
     return subprocess.call(args) == 0
 
+
 def _check_call_py24(cmd, *args, **kwargs):
     res = subprocess.call(cmd, *args, **kwargs)
+
     class CalledProcessError(Exception):
         pass
     if not res == 0:
@@ -45,6 +48,7 @@ def _check_call_py24(cmd, *args, **kwargs):
         raise CalledProcessError(msg)
 vars(subprocess).setdefault('check_call', _check_call_py24)
 
+
 def _install(tarball, install_args=()):
     # extracting the tarball
     tmpdir = tempfile.mkdtemp()
@@ -151,6 +155,7 @@ def use_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
         return _do_download(version, download_base, to_dir,
                             download_delay)
 
+
 def download_file_powershell(url, target):
     """
     Download the file at url to target using Powershell (which will validate
@@ -164,6 +169,7 @@ def download_file_powershell(url, target):
     ]
     subprocess.check_call(cmd)
 
+
 def has_powershell():
     if platform.system() != 'Windows':
         return False
@@ -180,10 +186,12 @@ def has_powershell():
 
 download_file_powershell.viable = has_powershell
 
+
 def download_file_curl(url, target):
     cmd = ['curl', url, '--silent', '--output', target]
     subprocess.check_call(cmd)
 
+
 def has_curl():
     cmd = ['curl', '--version']
     devnull = open(os.path.devnull, 'wb')
@@ -198,10 +206,12 @@ def has_curl():
 
 download_file_curl.viable = has_curl
 
+
 def download_file_wget(url, target):
     cmd = ['wget', url, '--quiet', '--output-document', target]
     subprocess.check_call(cmd)
 
+
 def has_wget():
     cmd = ['wget', '--version']
     devnull = open(os.path.devnull, 'wb')
@@ -216,6 +226,7 @@ def has_wget():
 
 download_file_wget.viable = has_wget
 
+
 def download_file_insecure(url, target):
     """
     Use Python to download the file, even though it cannot authenticate the
@@ -241,6 +252,7 @@ def download_file_insecure(url, target):
 
 download_file_insecure.viable = lambda: True
 
+
 def get_best_downloader():
     downloaders = [
         download_file_powershell,
@@ -253,6 +265,7 @@ def get_best_downloader():
         if dl.viable():
             return dl
 
+
 def download_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
                         to_dir=os.curdir, delay=15,
                         downloader_factory=get_best_downloader):
@@ -338,6 +351,7 @@ def _build_install_args(options):
         install_args.append('--user')
     return install_args
 
+
 def _parse_args():
     """
     Parse the command line for options
@@ -359,6 +373,7 @@ def _parse_args():
     # positional arguments are ignored
     return options
 
+
 def main(version=DEFAULT_VERSION):
     """Install or upgrade setuptools and EasyInstall"""
     options = _parse_args()