many pep8 improvements

gluon/contrib/generics.py

@@ -12,6 +12,7 @@ from gluon.sanitizer import sanitize
 from gluon.contrib.markmin.markmin2latex import markmin2latex
 from gluon.contrib.markmin.markmin2pdf import markmin2pdf
 
+
 def wrapper(f):
     def g(data):
         try:
@@ -25,39 +26,47 @@ def wrapper(f):
             raise HTTP(405, '%s error' % e)
     return g
 
+
 def latex_from_html(html):
-    markmin=TAG(html).element('body').flatten(markmin_serializer)
+    markmin = TAG(html).element('body').flatten(markmin_serializer)
     return XML(markmin2latex(markmin))
 
+
 def pdflatex_from_html(html):
-    if os.system('which pdflatex > /dev/null')==0:
-        markmin=TAG(html).element('body').flatten(markmin_serializer)
-        out,warnings,errors=markmin2pdf(markmin)
+    if os.system('which pdflatex > /dev/null') == 0:
+        markmin = TAG(html).element('body').flatten(markmin_serializer)
+        out, warnings, errors = markmin2pdf(markmin)
         if errors:
-            current.response.headers['Content-Type']='text/html'
-            raise HTTP(405,HTML(BODY(H1('errors'),
-                                     UL(*errors),
-                                     H1('warnings'),
-                                     UL(*warnings))).xml())
+            current.response.headers['Content-Type'] = 'text/html'
+            raise HTTP(405, HTML(BODY(H1('errors'),
+                                      UL(*errors),
+                                      H1('warnings'),
+                                      UL(*warnings))).xml())
         else:
             return XML(out)
 
+
 def pyfpdf_from_html(html):
     request = current.request
+
     def image_map(path):
         if path.startswith('/%s/static/' % request.application):
-            return os.path.join(request.folder,path.split('/',2)[2])
-        return 'http%s://%s%s' % (request.is_https and 's' or '',request.env.http_host, path)
-    class MyFPDF(FPDF, HTMLMixin): pass
-    pdf=MyFPDF()
+            return os.path.join(request.folder, path.split('/', 2)[2])
+        return 'http%s://%s%s' % (request.is_https and 's' or '', request.env.http_host, path)
+
+    class MyFPDF(FPDF, HTMLMixin):
+        pass
+    pdf = MyFPDF()
     pdf.add_page()
-    html = sanitize(html, escape=False)  #### should have better list of allowed tags
-    pdf.write_html(html,image_map=image_map)
+    html = sanitize(
+        html, escape=False)  # should have better list of allowed tags
+    pdf.write_html(html, image_map=image_map)
     return XML(pdf.output(dest='S'))
 
+
 def pdf_from_html(html):
     # try use latex and pdflatex
-    if os.system('which pdflatex > /dev/null')==0:
+    if os.system('which pdflatex > /dev/null') == 0:
         return pdflatex_from_html(html)
     else:
         return pyfpdf_from_html(html)