Reformat python code to be compliant with PEP8

The following command is used:
`pycodestyle --ignore=E265,E722 --max-line-length=100 <py files>`

src/searchengine/nova/helpers.py

@@ -1,4 +1,4 @@
-#VERSION: 1.41
+#VERSION: 1.42
 
 # Author:
 #  Christophe DUMEZ (chris@qbittorrent.org)
@@ -29,25 +29,30 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 
-import re, htmlentitydefs
-import tempfile
+import gzip
+import htmlentitydefs
 import os
-import StringIO, gzip, urllib2
+import re
 import socket
 import socks
-import re
+import StringIO
+import tempfile
+import urllib2
 
 # Some sites blocks default python User-agent
 user_agent = 'Mozilla/5.0 (X11; Linux i686; rv:38.0) Gecko/20100101 Firefox/38.0'
-headers    = {'User-Agent': user_agent}
+headers = {'User-Agent': user_agent}
 # SOCKS5 Proxy support
-if os.environ.has_key("sock_proxy") and len(os.environ["sock_proxy"].strip()) > 0:
+if ("sock_proxy" in os.environ) and (len(os.environ["sock_proxy"].strip()) > 0):
     proxy_str = os.environ["sock_proxy"].strip()
-    m=re.match(r"^(?:(?P<username>[^:]+):(?P<password>[^@]+)@)?(?P<host>[^:]+):(?P<port>\w+)$", proxy_str)
+    m = re.match(r"^(?:(?P<username>[^:]+):(?P<password>[^@]+)@)?(?P<host>[^:]+):(?P<port>\w+)$",
+                 proxy_str)
     if m is not None:
-        socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5, m.group('host'), int(m.group('port')), True, m.group('username'), m.group('password'))
+        socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5, m.group('host'),
+                              int(m.group('port')), True, m.group('username'), m.group('password'))
         socket.socket = socks.socksocket
 
+
 def htmlentitydecode(s):
     # First convert alpha entities (such as &eacute;)
     # (Inspired from http://mail.python.org/pipermail/python-list/2007-June/443813.html)
@@ -59,14 +64,15 @@ def htmlentitydecode(s):
     t = re.sub(u'&(%s);' % u'|'.join(htmlentitydefs.name2codepoint), entity2char, s)
 
     # Then convert numerical entities (such as &#233;)
-    t = re.sub(u'&#(\d+);', lambda x: unichr(int(x.group(1))), t)
+    t = re.sub(r'&#(\d+);', lambda x: unichr(int(x.group(1))), t)
 
     # Then convert hexa entities (such as &#x00E9;)
-    return re.sub(u'&#x(\w+);', lambda x: unichr(int(x.group(1),16)), t)
+    return re.sub(r'&#x(\w+);', lambda x: unichr(int(x.group(1), 16)), t)
+
 
 def retrieve_url(url):
     """ Return the content of the url page as a string """
-    req = urllib2.Request(url, headers = headers)
+    req = urllib2.Request(url, headers=headers)
     try:
         response = urllib2.urlopen(req)
     except urllib2.URLError as errno:
@@ -90,12 +96,13 @@ def retrieve_url(url):
     dat = htmlentitydecode(dat)
     return dat
 
+
 def download_file(url, referer=None):
     """ Download file at url and write it to a file, return the path to the file and the url """
     file, path = tempfile.mkstemp()
     file = os.fdopen(file, "w")
     # Download url
-    req = urllib2.Request(url, headers = headers)
+    req = urllib2.Request(url, headers=headers)
     if referer is not None:
         req.add_header('referer', referer)
     response = urllib2.urlopen(req)
@@ -112,4 +119,4 @@ def download_file(url, referer=None):
     file.write(dat)
     file.close()
     # return file path
-    return path+" "+url
+    return (path + " " + url)

src/searchengine/nova/nova2.py

@@ -1,4 +1,4 @@
-#VERSION: 1.41
+#VERSION: 1.42
 
 # Author:
 #  Fabien Devaux <fab AT gnux DOT info>
@@ -56,6 +56,7 @@ CATEGORIES = {'all', 'movies', 'tv', 'music', 'games', 'anime', 'software', 'pic
 # As a convention, try to list results by decreasing number of seeds or similar
 ################################################################################
 
+
 def initialize_engines():
     """ Import available engines
 
@@ -69,11 +70,11 @@ def initialize_engines():
         if len(engi) == 0 or engi.startswith('_'):
             continue
         try:
-            #import engines.[engine]
+            # import engines.[engine]
             engine_module = __import__(".".join(("engines", engi)))
-            #get low-level module
+            # get low-level module
             engine_module = getattr(engine_module, engi)
-            #bind class name
+            # bind class name
             globals()[engi] = getattr(engine_module, engi)
             supported_engines.append(engi)
         except:
@@ -81,6 +82,7 @@ def initialize_engines():
 
     return supported_engines
 
+
 def engines_to_xml(supported_engines):
     """ Generates xml for supported engines """
     tab = " " * 4
@@ -90,14 +92,16 @@ def engines_to_xml(supported_engines):
 
         supported_categories = ""
         if hasattr(search_engine, "supported_categories"):
-            supported_categories = " ".join((key for key in search_engine.supported_categories.keys()
+            supported_categories = " ".join((key
+                                             for key in search_engine.supported_categories.keys()
                                              if key is not "all"))
 
-        yield  "".join((tab, "<", short_name, ">\n",
-                        tab, tab, "<name>", search_engine.name, "</name>\n",
-                        tab, tab, "<url>", search_engine.url, "</url>\n",
-                        tab, tab, "<categories>", supported_categories, "</categories>\n",
-                        tab, "</", short_name, ">\n"))
+        yield "".join((tab, "<", short_name, ">\n",
+                       tab, tab, "<name>", search_engine.name, "</name>\n",
+                       tab, tab, "<url>", search_engine.url, "</url>\n",
+                       tab, tab, "<categories>", supported_categories, "</categories>\n",
+                       tab, "</", short_name, ">\n"))
+
 
 def displayCapabilities(supported_engines):
     """
@@ -115,6 +119,7 @@ def displayCapabilities(supported_engines):
                    "</capabilities>"))
     print(xml)
 
+
 def run_search(engine_list):
     """ Run search in engine
 
@@ -126,7 +131,7 @@ def run_search(engine_list):
     engine, what, cat = engine_list
     try:
         engine = engine()
-        #avoid exceptions due to invalid category
+        # avoid exceptions due to invalid category
         if hasattr(engine, 'supported_categories'):
             if cat in engine.supported_categories:
                 engine.search(what, cat)
@@ -136,6 +141,7 @@ def run_search(engine_list):
     except:
         return False
 
+
 def main(args):
     fix_encoding()
     supported_engines = initialize_engines()
@@ -152,18 +158,18 @@ def main(args):
         raise SystemExit("./nova2.py [all|engine1[,engine2]*] <category> <keywords>\n"
                          "available engines: %s" % (','.join(supported_engines)))
 
-    #get only unique engines with set
+    # get only unique engines with set
     engines_list = set(e.lower() for e in args[0].strip().split(','))
 
     if 'all' in engines_list:
         engines_list = supported_engines
     else:
-        #discard un-supported engines
+        # discard un-supported engines
         engines_list = [engine for engine in engines_list
                         if engine in supported_engines]
 
     if not engines_list:
-        #engine list is empty. Nothing to do here
+        # engine list is empty. Nothing to do here
         return
 
     cat = args[1].lower()
@@ -174,11 +180,12 @@ def main(args):
     what = urllib.quote(' '.join(args[2:]))
 
     if THREADED:
-        #child process spawning is controlled min(number of searches, number of cpu)
+        # child process spawning is controlled min(number of searches, number of cpu)
         pool = Pool(min(len(engines_list), MAX_THREADS))
         pool.map(run_search, ([globals()[engine], what, cat] for engine in engines_list))
     else:
         map(run_search, ([globals()[engine], what, cat] for engine in engines_list))
 
+
 if __name__ == "__main__":
     main(argv[1:])

src/searchengine/nova/nova2dl.py

@@ -1,4 +1,4 @@
-#VERSION: 1.20
+#VERSION: 1.21
 
 # Author:
 #  Christophe DUMEZ (chris@qbittorrent.org)
@@ -34,14 +34,16 @@ from helpers import download_file
 
 supported_engines = dict()
 
-engines = glob.glob(os.path.join(os.path.dirname(__file__), 'engines','*.py'))
+engines = glob.glob(os.path.join(os.path.dirname(__file__), 'engines', '*.py'))
 for engine in engines:
     e = engine.split(os.sep)[-1][:-3]
-    if len(e.strip()) == 0: continue
-    if e.startswith('_'): continue
+    if len(e.strip()) == 0:
+        continue
+    if e.startswith('_'):
+        continue
     try:
-        exec("from engines.%s import %s"%(e,e))
-        exec("engine_url = %s.url"%e)
+        exec("from engines.%s import %s" % (e, e))
+        exec("engine_url = %s.url" % e)
         supported_engines[engine_url] = e
     except:
         pass
@@ -53,7 +55,7 @@ if __name__ == '__main__':
     download_param = sys.argv[2].strip()
     if engine_url not in list(supported_engines.keys()):
         raise SystemExit('./nova2dl.py: this engine_url was not recognized')
-    exec("engine = %s()"%supported_engines[engine_url])
+    exec("engine = %s()" % supported_engines[engine_url])
     if hasattr(engine, 'download_torrent'):
         engine.download_torrent(download_param)
     else:

src/searchengine/nova/novaprinter.py

@@ -1,4 +1,4 @@
-#VERSION: 1.45
+#VERSION: 1.46
 
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
@@ -24,21 +24,26 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 
-import sys, codecs
+import codecs
+import sys
 from io import open
 
 # Force UTF-8 printing
 sys.stdout = codecs.getwriter('utf-8')(sys.stdout)
 
+
 def prettyPrinter(dictionary):
     dictionary['size'] = anySizeToBytes(dictionary['size'])
-    outtext = "|".join((dictionary["link"], dictionary["name"].replace("|", " "), str(dictionary["size"]), str(dictionary["seeds"]), str(dictionary["leech"]), dictionary["engine_url"]))
+    outtext = "|".join((dictionary["link"], dictionary["name"].replace("|", " "),
+                        str(dictionary["size"]), str(dictionary["seeds"]),
+                        str(dictionary["leech"]), dictionary["engine_url"]))
     if 'desc_link' in dictionary:
         outtext = "|".join((outtext, dictionary["desc_link"]))
 
     with open(1, 'w', encoding='utf-8', closefd=False) as utf8_stdout:
         utf8_stdout.write(unicode("".join((outtext, "\n"))))
 
+
 def anySizeToBytes(size_string):
     """
     Convert a string like '1 KB' to '1024' (bytes)
@@ -63,6 +68,6 @@ def anySizeToBytes(size_string):
 
     # convert
     units_dict = {'T': 40, 'G': 30, 'M': 20, 'K': 10}
-    if units_dict.has_key(short_unit):
+    if short_unit in units_dict:
         size = size * 2**units_dict[short_unit]
     return int(size)

src/searchengine/nova3/helpers.py

@@ -1,4 +1,4 @@
-#VERSION: 1.40
+#VERSION: 1.41
 
 # Author:
 #  Christophe DUMEZ (chris@qbittorrent.org)
@@ -27,25 +27,32 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 
-import re, html.entities
-import tempfile
+import gzip
+import html.entities
+import io
 import os
-import io, gzip, urllib.request, urllib.error, urllib.parse
+import re
 import socket
 import socks
-import re
+import tempfile
+import urllib.error
+import urllib.parse
+import urllib.request
 
 # Some sites blocks default python User-agent
 user_agent = 'Mozilla/5.0 (X11; Linux i686; rv:38.0) Gecko/20100101 Firefox/38.0'
-headers    = {'User-Agent': user_agent}
+headers = {'User-Agent': user_agent}
 # SOCKS5 Proxy support
 if "sock_proxy" in os.environ and len(os.environ["sock_proxy"].strip()) > 0:
     proxy_str = os.environ["sock_proxy"].strip()
-    m=re.match(r"^(?:(?P<username>[^:]+):(?P<password>[^@]+)@)?(?P<host>[^:]+):(?P<port>\w+)$", proxy_str)
+    m = re.match(r"^(?:(?P<username>[^:]+):(?P<password>[^@]+)@)?(?P<host>[^:]+):(?P<port>\w+)$",
+                 proxy_str)
     if m is not None:
-        socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5, m.group('host'), int(m.group('port')), True, m.group('username'), m.group('password'))
+        socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5, m.group('host'),
+                              int(m.group('port')), True, m.group('username'), m.group('password'))
         socket.socket = socks.socksocket
 
+
 def htmlentitydecode(s):
     # First convert alpha entities (such as &eacute;)
     # (Inspired from http://mail.python.org/pipermail/python-list/2007-June/443813.html)
@@ -57,14 +64,15 @@ def htmlentitydecode(s):
     t = re.sub('&(%s);' % '|'.join(html.entities.name2codepoint), entity2char, s)
 
     # Then convert numerical entities (such as &#233;)
-    t = re.sub('&#(\d+);', lambda x: chr(int(x.group(1))), t)
+    t = re.sub(r'&#(\d+);', lambda x: chr(int(x.group(1))), t)
 
     # Then convert hexa entities (such as &#x00E9;)
-    return re.sub('&#x(\w+);', lambda x: chr(int(x.group(1),16)), t)
+    return re.sub(r'&#x(\w+);', lambda x: chr(int(x.group(1), 16)), t)
+
 
 def retrieve_url(url):
     """ Return the content of the url page as a string """
-    req = urllib.request.Request(url, headers = headers)
+    req = urllib.request.Request(url, headers=headers)
     try:
         response = urllib.request.urlopen(req)
     except urllib.error.URLError as errno:
@@ -86,15 +94,16 @@ def retrieve_url(url):
         pass
     dat = dat.decode(charset, 'replace')
     dat = htmlentitydecode(dat)
-    #return dat.encode('utf-8', 'replace')
+    # return dat.encode('utf-8', 'replace')
     return dat
 
+
 def download_file(url, referer=None):
     """ Download file at url and write it to a file, return the path to the file and the url """
     file, path = tempfile.mkstemp()
     file = os.fdopen(file, "wb")
     # Download url
-    req = urllib.request.Request(url, headers = headers)
+    req = urllib.request.Request(url, headers=headers)
     if referer is not None:
         req.add_header('referer', referer)
     response = urllib.request.urlopen(req)
@@ -111,4 +120,4 @@ def download_file(url, referer=None):
     file.write(dat)
     file.close()
     # return file path
-    return path+" "+url
+    return (path + " " + url)

src/searchengine/nova3/nova2.py

@@ -1,4 +1,4 @@
-#VERSION: 1.41
+#VERSION: 1.42
 
 # Author:
 #  Fabien Devaux <fab AT gnux DOT info>
@@ -55,6 +55,7 @@ CATEGORIES = {'all', 'movies', 'tv', 'music', 'games', 'anime', 'software', 'pic
 # As a convention, try to list results by decreasing number of seeds or similar
 ################################################################################
 
+
 def initialize_engines():
     """ Import available engines
 
@@ -68,11 +69,11 @@ def initialize_engines():
         if len(engi) == 0 or engi.startswith('_'):
             continue
         try:
-            #import engines.[engine]
+            # import engines.[engine]
             engine_module = __import__(".".join(("engines", engi)))
-            #get low-level module
+            # get low-level module
             engine_module = getattr(engine_module, engi)
-            #bind class name
+            # bind class name
             globals()[engi] = getattr(engine_module, engi)
             supported_engines.append(engi)
         except:
@@ -80,6 +81,7 @@ def initialize_engines():
 
     return supported_engines
 
+
 def engines_to_xml(supported_engines):
     """ Generates xml for supported engines """
     tab = " " * 4
@@ -89,14 +91,16 @@ def engines_to_xml(supported_engines):
 
         supported_categories = ""
         if hasattr(search_engine, "supported_categories"):
-            supported_categories = " ".join((key for key in search_engine.supported_categories.keys()
+            supported_categories = " ".join((key
+                                             for key in search_engine.supported_categories.keys()
                                              if key is not "all"))
 
-        yield  "".join((tab, "<", short_name, ">\n",
-                        tab, tab, "<name>", search_engine.name, "</name>\n",
-                        tab, tab, "<url>", search_engine.url, "</url>\n",
-                        tab, tab, "<categories>", supported_categories, "</categories>\n",
-                        tab, "</", short_name, ">\n"))
+        yield "".join((tab, "<", short_name, ">\n",
+                       tab, tab, "<name>", search_engine.name, "</name>\n",
+                       tab, tab, "<url>", search_engine.url, "</url>\n",
+                       tab, tab, "<categories>", supported_categories, "</categories>\n",
+                       tab, "</", short_name, ">\n"))
+
 
 def displayCapabilities(supported_engines):
     """
@@ -114,6 +118,7 @@ def displayCapabilities(supported_engines):
                    "</capabilities>"))
     print(xml)
 
+
 def run_search(engine_list):
     """ Run search in engine
 
@@ -125,7 +130,7 @@ def run_search(engine_list):
     engine, what, cat = engine_list
     try:
         engine = engine()
-        #avoid exceptions due to invalid category
+        # avoid exceptions due to invalid category
         if hasattr(engine, 'supported_categories'):
             if cat in engine.supported_categories:
                 engine.search(what, cat)
@@ -136,6 +141,7 @@ def run_search(engine_list):
     except:
         return False
 
+
 def main(args):
     supported_engines = initialize_engines()
 
@@ -151,18 +157,18 @@ def main(args):
         raise SystemExit("./nova2.py [all|engine1[,engine2]*] <category> <keywords>\n"
                          "available engines: %s" % (','.join(supported_engines)))
 
-    #get only unique engines with set
+    # get only unique engines with set
     engines_list = set(e.lower() for e in args[0].strip().split(','))
 
     if 'all' in engines_list:
         engines_list = supported_engines
     else:
-        #discard un-supported engines
+        # discard un-supported engines
         engines_list = [engine for engine in engines_list
                         if engine in supported_engines]
 
     if not engines_list:
-        #engine list is empty. Nothing to do here
+        # engine list is empty. Nothing to do here
         return
 
     cat = args[1].lower()
@@ -172,12 +178,13 @@ def main(args):
 
     what = urllib.parse.quote(' '.join(args[2:]))
     if THREADED:
-        #child process spawning is controlled min(number of searches, number of cpu)
+        # child process spawning is controlled min(number of searches, number of cpu)
         with Pool(min(len(engines_list), MAX_THREADS)) as pool:
             pool.map(run_search, ([globals()[engine], what, cat] for engine in engines_list))
     else:
-        #py3 note: map is needed to be evaluated for content to be executed
+        # py3 note: map is needed to be evaluated for content to be executed
         all(map(run_search, ([globals()[engine], what, cat] for engine in engines_list)))
 
+
 if __name__ == "__main__":
     main(argv[1:])

src/searchengine/nova3/nova2dl.py

@@ -1,4 +1,4 @@
-#VERSION: 1.20
+#VERSION: 1.21
 
 # Author:
 #  Christophe DUMEZ (chris@qbittorrent.org)
@@ -34,14 +34,16 @@ from helpers import download_file
 
 supported_engines = dict()
 
-engines = glob.glob(os.path.join(os.path.dirname(__file__), 'engines','*.py'))
+engines = glob.glob(os.path.join(os.path.dirname(__file__), 'engines', '*.py'))
 for engine in engines:
     e = engine.split(os.sep)[-1][:-3]
-    if len(e.strip()) == 0: continue
-    if e.startswith('_'): continue
+    if len(e.strip()) == 0:
+        continue
+    if e.startswith('_'):
+        continue
     try:
-        exec("from engines.%s import %s"%(e,e))
-        exec("engine_url = %s.url"%e)
+        exec("from engines.%s import %s" % (e, e))
+        exec("engine_url = %s.url" % e)
         supported_engines[engine_url] = e
     except:
         pass
@@ -53,7 +55,7 @@ if __name__ == '__main__':
     download_param = sys.argv[2].strip()
     if engine_url not in list(supported_engines.keys()):
         raise SystemExit('./nova2dl.py: this engine_url was not recognized')
-    exec("engine = %s()"%supported_engines[engine_url])
+    exec("engine = %s()" % supported_engines[engine_url])
     if hasattr(engine, 'download_torrent'):
         engine.download_torrent(download_param)
     else:

src/searchengine/nova3/novaprinter.py

@@ -1,4 +1,4 @@
-#VERSION: 1.45
+#VERSION: 1.46
 
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
@@ -24,9 +24,12 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 
+
 def prettyPrinter(dictionary):
     dictionary['size'] = anySizeToBytes(dictionary['size'])
-    outtext = "|".join((dictionary["link"], dictionary["name"].replace("|", " "), str(dictionary["size"]), str(dictionary["seeds"]), str(dictionary["leech"]), dictionary["engine_url"]))
+    outtext = "|".join((dictionary["link"], dictionary["name"].replace("|", " "),
+                        str(dictionary["size"]), str(dictionary["seeds"]),
+                        str(dictionary["leech"]), dictionary["engine_url"]))
     if 'desc_link' in dictionary:
         outtext = "|".join((outtext, dictionary["desc_link"]))
 
@@ -34,6 +37,7 @@ def prettyPrinter(dictionary):
     with open(1, 'w', encoding='utf-8', closefd=False) as utf8stdout:
         print(outtext, file=utf8stdout)
 
+
 def anySizeToBytes(size_string):
     """
     Convert a string like '1 KB' to '1024' (bytes)