[Zope-Checkins] SVN: Zope/trunk/src/OFS/DTMLMethod.py PEP8, remove unused imports, normalize docstrings.

Tres Seaver tseaver at palladion.com
Tue Dec 15 11:22:16 EST 2009


Log message for revision 106544:
  PEP8, remove unused imports, normalize docstrings.

Changed:
  U   Zope/trunk/src/OFS/DTMLMethod.py

-=-
Modified: Zope/trunk/src/OFS/DTMLMethod.py
===================================================================
--- Zope/trunk/src/OFS/DTMLMethod.py	2009-12-15 16:11:25 UTC (rev 106543)
+++ Zope/trunk/src/OFS/DTMLMethod.py	2009-12-15 16:22:15 UTC (rev 106544)
@@ -11,17 +11,13 @@
 #
 ##############################################################################
 """DTML Method objects.
-
-$Id$
 """
-import sys
 from urllib import quote
 
 from AccessControl.SecurityInfo import ClassSecurityInfo
 from AccessControl.Role import RoleManager
 from Acquisition import Implicit
 from App.class_init import InitializeClass
-from App.Dialogs import MessageDialog
 from App.special_dtml import DTMLFile
 from App.special_dtml import HTML
 from DateTime.DateTime import DateTime
@@ -33,20 +29,17 @@
 from AccessControl.Permissions import ftp_access
 from AccessControl.DTML import RestrictedDTML
 from AccessControl.requestmethod import requestmethod
-from webdav.common import rfc1123_date
+from OFS.Cache import Cacheable
+from OFS.History import Historical
+from OFS.History import html_diff
+from OFS.SimpleItem import Item_w__name__
+from OFS.ZDOM import ElementWithTitle
 from webdav.Lockable import ResourceLockedError
 from zExceptions import Forbidden
 from zExceptions.TracebackSupplement import PathTracebackSupplement
 from ZPublisher.Iterators import IStreamIterator
 from zope.contenttype import guess_content_type
 
-from OFS.Cache import Cacheable
-from OFS.History import Historical
-from OFS.History import html_diff
-from OFS.PropertyManager import PropertyManager
-from OFS.SimpleItem import Item_w__name__
-from OFS.SimpleItem import pretty_tb
-from OFS.ZDOM import ElementWithTitle
 
 _marker = []  # Create a new marker object.
 
@@ -59,12 +52,12 @@
                  Historical,
                  Cacheable,
                 ):
-    """DTML Method objects are DocumentTemplate.HTML objects that act
-       as methods of their containers."""
-    meta_type='DTML Method'
-    _proxy_roles=()
-    index_html=None # Prevent accidental acquisition
-    _cache_namespace_keys=()
+    """ DocumentTemplate.HTML objects that act as methods of their containers.
+    """
+    meta_type = 'DTML Method'
+    _proxy_roles = ()
+    index_html = None # Prevent accidental acquisition
+    _cache_namespace_keys = ()
 
     security = ClassSecurityInfo()
     security.declareObjectProtected(View)
@@ -72,21 +65,18 @@
     # Documents masquerade as functions:
     class func_code:
         pass
-    func_code=func_code()
-    func_code.co_varnames = 'self','REQUEST','RESPONSE'
+    func_code = func_code()
+    func_code.co_varnames = 'self', 'REQUEST', 'RESPONSE'
     func_code.co_argcount = 3
 
     manage_options = (
         (
-            {'label':'Edit', 'action':'manage_main',
-             'help':('OFSP','DTML-DocumentOrMethod_Edit.stx')},
-            #upload is deprecated
-            #{'label':'Upload', 'action':'manage_uploadForm',
-            # 'help':('OFSP','DTML-DocumentOrMethod_Upload.stx')},
-            {'label':'View', 'action':'',
-             'help':('OFSP','DTML-DocumentOrMethod_View.stx')},
-            {'label':'Proxy', 'action':'manage_proxyForm',
-             'help':('OFSP','DTML-DocumentOrMethod_Proxy.stx')},
+            {'label': 'Edit', 'action': 'manage_main',
+             'help': ('OFSP', 'DTML-DocumentOrMethod_Edit.stx')},
+            {'label': 'View', 'action': '',
+             'help': ('OFSP', 'DTML-DocumentOrMethod_View.stx')},
+            {'label': 'Proxy', 'action': 'manage_proxyForm',
+             'help': ('OFSP', 'DTML-DocumentOrMethod_Proxy.stx')},
             )
         + Historical.manage_options
         + RoleManager.manage_options
@@ -94,21 +84,25 @@
         + Cacheable.manage_options
         )
 
-    # Careful in permissiong changes--used by DTMLDocument!
+    # Careful in permission changes--used by DTMLDocument!
 
     security.declareProtected(change_dtml_methods, 'manage_historyCopy')
     security.declareProtected(change_dtml_methods, 'manage_beforeHistoryCopy')
     security.declareProtected(change_dtml_methods, 'manage_afterHistoryCopy')
 
-    # support a more reasonable default for content-type
-    # for http HEAD requests.
-    default_content_type='text/html'
+    # More reasonable default for content-type for http HEAD requests.
+    default_content_type = 'text/html'
 
     security.declareProtected(View, '__call__')
     def __call__(self, client=None, REQUEST={}, RESPONSE=None, **kw):
-        """Render the document given a client object, REQUEST mapping,
-        Response, and key word arguments."""
+        """Render using the given client object
+        
+        o If client is not passed, we are being called as a sub-template:
+          don't do any error propagation.
 
+        o If supplied, use the REQUEST mapping, Response, and key word
+        arguments.
+        """
         if not self._cache_namespace_keys:
             data = self.ZCacheable_get(default=_marker)
             if data is not _marker:
@@ -129,10 +123,10 @@
                 return data
 
         __traceback_supplement__ = (PathTracebackSupplement, self)
-        kw['document_id']   =self.getId()
-        kw['document_title']=self.title
+        kw['document_id'] = self.getId()
+        kw['document_title'] = self.title
 
-        security=getSecurityManager()
+        security = getSecurityManager()
         security.addContext(self)
         if self.__dict__.has_key('validate'):
             first_time_through = 0
@@ -143,14 +137,16 @@
 
             if client is None:
                 # Called as subtemplate, so don't need error propagation!
-                r=apply(HTML.__call__, (self, client, REQUEST), kw)
-                if RESPONSE is None: result = r
-                else: result = decapitate(r, RESPONSE)
+                r = apply(HTML.__call__, (self, client, REQUEST), kw)
+                if RESPONSE is None:
+                    result = r
+                else:
+                    result = decapitate(r, RESPONSE)
                 if not self._cache_namespace_keys:
                     self.ZCacheable_set(result)
                 return result
 
-            r=apply(HTML.__call__, (self, client, REQUEST), kw)
+            r = apply(HTML.__call__, (self, client, REQUEST), kw)
             if type(r) is not type('') or RESPONSE is None:
                 if not self._cache_namespace_keys:
                     self.ZCacheable_set(r)
@@ -161,12 +157,12 @@
             if first_time_through:
                 del self.__dict__['validate']
 
-        have_key=RESPONSE.headers.has_key
+        have_key = RESPONSE.headers.has_key
         if not (have_key('content-type') or have_key('Content-Type')):
             if self.__dict__.has_key('content_type'):
-                c=self.content_type
+                c = self.content_type
             else:
-                c, e=guess_content_type(self.getId(), r)
+                c, e = guess_content_type(self.getId(), r)
             RESPONSE.setHeader('Content-Type', c)
         result = decapitate(r, RESPONSE)
         if not self._cache_namespace_keys:
@@ -183,8 +179,10 @@
             # cache entry.
             kw = {}
             for key in self._cache_namespace_keys:
-                try: val = md[key]
-                except: val = None
+                try:
+                    val = md[key]
+                except:
+                    val = None
                 kw[key] = val
             return self.ZCacheable_get(keywords=kw, default=default)
         return default
@@ -194,8 +192,10 @@
         if self._cache_namespace_keys:
             kw = {}
             for key in self._cache_namespace_keys:
-                try: val = md[key]
-                except: val = None
+                try:
+                    val = md[key]
+                except:
+                    val = None
                 kw[key] = val
             self.ZCacheable_set(result, keywords=kw)
 
@@ -204,17 +204,14 @@
 
     security.declareProtected(change_dtml_methods, 'getCacheNamespaceKeys')
     def getCacheNamespaceKeys(self):
-        '''
-        Returns the cacheNamespaceKeys.
-        '''
+        """ Return the cacheNamespaceKeys.
+        """
         return self._cache_namespace_keys
 
     security.declareProtected(change_dtml_methods, 'setCacheNamespaceKeys')
     def setCacheNamespaceKeys(self, keys, REQUEST=None):
-        '''
-        Sets the list of names that should be looked up in the
-        namespace to provide a cache key.
-        '''
+        """ Set the list of names looked up to provide a cache key.
+        """
         ks = []
         for key in keys:
             key = str(key).strip()
@@ -229,34 +226,34 @@
         return len(self.raw)
 
     # deprecated; use get_size!
-    getSize=get_size
+    getSize = get_size
 
     security.declareProtected(change_dtml_methods, 'manage')
 
     security.declareProtected(change_dtml_methods, 'manage_editForm')
-    manage_editForm=DTMLFile('dtml/documentEdit', globals())
+    manage_editForm = DTMLFile('dtml/documentEdit', globals())
     manage_editForm._setName('manage_editForm')
 
     # deprecated!
-    manage_uploadForm=manage_editForm
+    manage_uploadForm = manage_editForm
 
     security.declareProtected(change_dtml_methods, 'manage_main')
-    manage=manage_main=manage_editDocument=manage_editForm
+    manage = manage_main = manage_editDocument = manage_editForm
 
     security.declareProtected(change_proxy_roles, 'manage_proxyForm')
-    manage_proxyForm=DTMLFile('dtml/documentProxy', globals())
+    manage_proxyForm = DTMLFile('dtml/documentProxy', globals())
 
-    _size_changes={
-        'Bigger': (5,5),
-        'Smaller': (-5,-5),
-        'Narrower': (0,-5),
-        'Wider': (0,5),
-        'Taller': (5,0),
-        'Shorter': (-5,0),
+    _size_changes = {
+        'Bigger': (5, 5),
+        'Smaller': (-5, -5),
+        'Narrower': (0, -5),
+        'Wider': (0, 5),
+        'Taller': (5, 0),
+        'Shorter': (-5, 0),
         }
 
-    def _er(self,data,title,SUBMIT,dtpref_cols,dtpref_rows,REQUEST):
-        dr,dc = self._size_changes[SUBMIT]
+    def _er(self, data, title, SUBMIT, dtpref_cols, dtpref_rows, REQUEST):
+        dr, dc = self._size_changes[SUBMIT]
         rows = str(max(1, int(dtpref_rows) + dr))
         cols = str(dtpref_cols)
         if cols.endswith('%'):
@@ -267,15 +264,17 @@
         setCookie = REQUEST["RESPONSE"].setCookie
         setCookie("dtpref_rows", rows, path='/', expires=e)
         setCookie("dtpref_cols", cols, path='/', expires=e)
-        REQUEST.other.update({"dtpref_cols":cols, "dtpref_rows":rows})
+        REQUEST.other.update({"dtpref_cols": cols, "dtpref_rows": rows})
         return self.manage_main(self, REQUEST, title=title,
                                 __str__=self.quotedHTML(data))
 
     security.declareProtected(change_dtml_methods, 'manage_edit')
-    def manage_edit(self,data,title,SUBMIT='Change',dtpref_cols='100%',
-                    dtpref_rows='20',REQUEST=None):
-        """
-        Replaces a Documents contents with Data, Title with Title.
+    def manage_edit(self, data, title,
+                    SUBMIT='Change',
+                    dtpref_cols='100%',
+                    dtpref_rows='20',
+                    REQUEST=None):
+        """ Replace contents with 'data', title with 'title'.
 
         The SUBMIT parameter is also used to change the size of the editing
         area on the default Document edit screen.  If the value is "Smaller",
@@ -285,77 +284,87 @@
         """
         self._validateProxy(REQUEST)
         if self._size_changes.has_key(SUBMIT):
-            return self._er(data,title,SUBMIT,dtpref_cols,dtpref_rows,REQUEST)
+            return self._er(data, title,
+                            SUBMIT, dtpref_cols, dtpref_rows, REQUEST)
         if self.wl_isLocked():
-            raise ResourceLockedError, 'This DTML Method is locked via WebDAV'
+            raise ResourceLockedError('This DTML Method is locked via WebDAV')
 
-        self.title=str(title)
-        if type(data) is not type(''): data=data.read()
+        self.title = str(title)
+        if type(data) is not type(''):
+            data = data.read()
         self.munge(data)
         self.ZCacheable_invalidate()
         if REQUEST:
-            message="Saved changes."
-            return self.manage_main(self,REQUEST,manage_tabs_message=message)
+            message = "Saved changes."
+            return self.manage_main(self, REQUEST, manage_tabs_message=message)
 
     security.declareProtected(change_dtml_methods, 'manage_upload')
-    def manage_upload(self,file='', REQUEST=None):
-        """Replace the contents of the document with the text in file."""
+    def manage_upload(self, file='', REQUEST=None):
+        """ Replace the contents of the document with the text in 'file'.
+        """
         self._validateProxy(REQUEST)
         if self.wl_isLocked():
-            raise ResourceLockedError, 'This DTML Method is locked via WebDAV'
+            raise ResourceLockedError('This DTML Method is locked via WebDAV')
 
         if type(file) is not type(''):
             if REQUEST and not file:
-                raise ValueError, 'No file specified'
-            file=file.read()
+                raise ValueError('No file specified')
+            file = file.read()
 
         self.munge(file)
         self.ZCacheable_invalidate()
         if REQUEST:
-            message="Saved changes."
-            return self.manage_main(self,REQUEST,manage_tabs_message=message)
+            message = "Saved changes."
+            return self.manage_main(self, REQUEST, manage_tabs_message=message)
 
 
 
-    def manage_haveProxy(self,r): return r in self._proxy_roles
+    def manage_haveProxy(self, r):
+        return r in self._proxy_roles
 
     def _validateProxy(self, request, roles=None):
-        if roles is None: roles=self._proxy_roles
-        if not roles: return
-        user=u=getSecurityManager().getUser()
-        user=user.allowed
+        if roles is None:
+            roles = self._proxy_roles
+        if not roles:
+            return
+        user = u = getSecurityManager().getUser()
+        user = user.allowed
         for r in roles:
             if r and not user(self, (r,)):
-                user=None
+                user = None
                 break
 
-        if user is not None: return
+        if user is not None:
+            return
 
-        raise Forbidden, (
+        raise Forbidden(
             'You are not authorized to change <em>%s</em> because you '
-            'do not have proxy roles.\n<!--%s, %s-->' % (self.__name__, u, roles))
+            'do not have proxy roles.\n<!--%s, %s-->'
+                % (self.__name__, u, roles))
 
-
     security.declareProtected(change_proxy_roles, 'manage_proxy')
     @requestmethod('POST')
     def manage_proxy(self, roles=(), REQUEST=None):
         "Change Proxy Roles"
         self._validateProxy(REQUEST, roles)
         self._validateProxy(REQUEST)
-        self._proxy_roles=tuple(roles)
+        self._proxy_roles = tuple(roles)
         self.ZCacheable_invalidate()
         if REQUEST:
-            message="Saved changes."
-            return self.manage_proxyForm(self,REQUEST,manage_tabs_message=message)
+            message = "Saved changes."
+            return self.manage_proxyForm(self, REQUEST,
+                                         manage_tabs_message=message)
 
     security.declareProtected(view_management_screens, 'PrincipiaSearchSource')
     def PrincipiaSearchSource(self):
-        "Support for searching - the document's contents are searched."
+        """ Support for searching - the document's contents are searched.
+        """
         return self.read()
 
     security.declareProtected(view_management_screens, 'document_src')
     def document_src(self, REQUEST=None, RESPONSE=None):
-        """Return unprocessed document source."""
+        """ Return unprocessed document source.
+        """
         if RESPONSE is not None:
             RESPONSE.setHeader('Content-Type', 'text/plain')
         return self.read()
@@ -364,10 +373,11 @@
 
     security.declareProtected(change_dtml_methods, 'PUT')
     def PUT(self, REQUEST, RESPONSE):
-        """Handle HTTP PUT requests."""
+        """ Handle FTP / HTTP PUT requests.
+        """
         self.dav__init(REQUEST, RESPONSE)
         self.dav__simpleifhandler(REQUEST, RESPONSE, refresh=1)
-        body=REQUEST.get('BODY', '')
+        body = REQUEST.get('BODY', '')
         self._validateProxy(REQUEST)
         self.munge(body)
         self.ZCacheable_invalidate()
@@ -379,7 +389,8 @@
 
     security.declareProtected(ftp_access, 'manage_FTPget')
     def manage_FTPget(self):
-        "Get source for FTP download"
+        """ Get source for FTP download.
+        """
         return self.read()
 
 
@@ -419,7 +430,8 @@
                 eolen = 2
             else:
                 eol = html.find( '\n', spos)
-                if eol < 0: return html
+                if eol < 0:
+                    return html
                 eolen = 1
             header.append(html[spos:eol].strip())
             spos = eol + eolen
@@ -444,16 +456,21 @@
     """Add a DTML Method object with the contents of file. If
     'file' is empty, default document text is used.
     """
-    if type(file) is not type(''): file=file.read()
-    if not file: file=default_dm_html
-    id=str(id)
-    title=str(title)
-    ob=DTMLMethod(file, __name__=id)
-    ob.title=title
-    id=self._setObject(id, ob)
+    if type(file) is not type(''):
+        file = file.read()
+    if not file:
+        file = default_dm_html
+    id = str(id)
+    title = str(title)
+    ob = DTMLMethod(file, __name__=id)
+    ob.title = title
+    id = self._setObject(id, ob)
     if REQUEST is not None:
-        try: u=self.DestinationURL()
-        except: u=REQUEST['URL1']
-        if submit==" Add and Edit ": u="%s/%s" % (u,quote(id))
+        try:
+            u = self.DestinationURL()
+        except:
+            u = REQUEST['URL1']
+        if submit == " Add and Edit ":
+            u = "%s/%s" % (u, quote(id))
         REQUEST.RESPONSE.redirect(u+'/manage_main')
     return ''



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