flake8 fixes

src/sugar3/activity/activityinstance.py

@@ -135,7 +135,8 @@ def main():
         command = bundle.get_command()
         if command.startswith('sugar-activity'):
             if not command.startswith('sugar-activity3'):
-                logging.warning("Activity written for Python 2, consider porting to Python 3.")
+                logging.warning("Activity written for Python 2,\
+                                consider porting to Python 3.")
             activity_class = command.split(" ")[1]
 
     # when an activity is started outside sugar,

src/sugar3/activity/widgets.py

@@ -34,7 +34,8 @@ from sugar3.graphics.palettemenu import PaletteMenuBox
 from sugar3 import profile
 
 
-def _(msg): return gettext.dgettext('sugar-toolkit-gtk3', msg)
+def _(msg):
+    return gettext.dgettext('sugar-toolkit-gtk3', msg)
 
 
 def _create_activity_icon(metadata):
@@ -337,7 +338,8 @@ class ActivityToolbar(Gtk.Toolbar):
 
         if activity.metadata:
             title_button = TitleEntry(activity)
-            title_button.connect('enter-key-press', lambda widget: self.emit('enter-key-press'))
+            title_button.connect('enter-key-press',
+                                 lambda widget: self.emit('enter-key-press'))
             title_button.show()
             self.insert(title_button, -1)
             self.title = title_button.entry

src/sugar3/bundle/__init__.py

@@ -29,10 +29,12 @@ an `[Activity]` header on the first line:
   1.2.3, 1.2.3-country, or 1.2.3~developer,
 
 * `bundle_id` - the activity bundle identifier, using [Java package
-  naming conventions](http://en.wikipedia.org/wiki/Java_package#Package_naming_conventions),
+  naming conventions]
+  (http://en.wikipedia.org/wiki/Java_package#Package_naming_conventions),
   should conform to the [D-Bus specification for message protocol
-  names](http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names)(hyphens
-  are not allowed), usually an organisation or individual domain name
+  names]
+  (http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names)
+  (hyphens are not allowed), usually an organisation or individual domain name
   in reverse order, e.g. `org.sugarlabs.Name`,
 
 * `license` - an identifier for the software license of the bundle,
@@ -58,7 +60,8 @@ Optional metadata keys are;
   files of these MIME types.  Used to offer your activity when opening a
   downloaded file or a journal object.
 
-* `url` - link to a home page or user documentation on https://help.sugarlabs.org/,
+* `url` - link to a home page or user documentation on
+  https://help.sugarlabs.org/,
 
 * `repository` - link to repository for activity code, for use by git clone,
 
@@ -84,7 +87,8 @@ Deprecated metadata keys are;
 * `update_url` - the updater no longer uses this.
 
 .. _SPDX License Identifier: http://spdx.org/licenses/
-.. _Fedora License Short Name: https://fedoraproject.org/wiki/Licensing:Main?rd=Licensing#Good_Licenses
+.. _Fedora License Short Name:
+  https://fedoraproject.org/wiki/Licensing:Main?rd=Licensing#Good_Licenses
 
 AppStream Metadata
 ==================
@@ -132,12 +136,27 @@ Example `activity.info`
 
     metadata_license = CC0-1.0
     description:
-        <p>Surf the world! Here you can do research, watch educational videos, take online courses, find books, connect with friends and more.  Browse is powered by the WebKit2 rendering engine with the Faster Than Light javascript interpreter - allowing you to view the full beauty of the web.</p>
+        <p>
+        Surf the world! Here you can do research, watch educational videos,
+        take online courses, find books, connect with friends and more.
+        Browse is powered by the WebKit2 rendering engine with the Faster
+        Than Light javascript interpreter - allowing you to view the
+        full beauty of the web.
+        </p>
         <p>To help in researching, Browse offers many features:</p>
         <ul>
-            <li>Bookmark (save) good pages you find - never loose good resources or forget to add them to your bibliography</li>
-            <li>Bookmark pages with collaborators in real time - great for researching as a group or teachers showing pages to their class</li>
-            <li>Comment on your bookmarked pages - a great tool for making curated collections</li>
+            <li>
+            Bookmark (save) good pages you find - never loose good resources
+            or forget to add them to your bibliography
+            </li>
+            <li>
+            Bookmark pages with collaborators in real time - great for
+            researching as a group or teachers showing pages to their class
+            </li>
+            <li>
+            Comment on your bookmarked pages - a great tool for making curated
+            collections
+            </li>
         </ul>
     screenshots = https://people.sugarlabs.org/sam/activity-ss/browse-1-1.png https://people.sugarlabs.org/sam/activity-ss/browse-1-2.png
 '''

src/sugar3/bundle/bundleversion.py

@@ -43,7 +43,8 @@ Based on the implementation of :pep:`386`, but adapted to our
 numeration schema.
 
 Attributes:
-    VERSION_RE (RegexObject): regular expression for versions, deprecated, as it is insufficient by itself.
+    VERSION_RE (RegexObject): regular expression for versions,\
+    deprecated, as it is insufficient by itself.
 """
 
 import re

src/sugar3/dispatch/saferef.py

@@ -167,7 +167,8 @@ class BoundMethodWeakref(object):
     def __cmp__(self, other):
         """Compare with another reference"""
         if not isinstance(other, self.__class__):
-            return ((self.__class__ > type(other)) - (self.__class__ < type(other)))
+            return ((self.__class__ > type(other)) -
+                    (self.__class__ < type(other)))
         return ((self.key > other.key) - (self.key < other.key))
 
     def __call__(self):

src/sugar3/graphics/alert.py

@@ -61,7 +61,8 @@ from sugar3.graphics import style
 from sugar3.graphics.icon import Icon
 
 
-def _(msg): return gettext.dgettext('sugar-toolkit-gtk3', msg)
+def _(msg):
+    return gettext.dgettext('sugar-toolkit-gtk3', msg)
 
 
 if not hasattr(GObject.ParamFlags, 'READWRITE'):

src/sugar3/graphics/colorbutton.py

@@ -29,7 +29,8 @@ from sugar3.graphics.icon import Icon
 from sugar3.graphics.palette import Palette, ToolInvoker, WidgetInvoker
 
 
-def _(msg): return gettext.dgettext('sugar-toolkit-gtk3', msg)
+def _(msg):
+    return gettext.dgettext('sugar-toolkit-gtk3', msg)
 
 
 if not hasattr(GObject.ParamFlags, 'READWRITE'):
@@ -123,7 +124,8 @@ class _ColorButton(Gtk.Button):
         context = self.get_style_context()
         fg_color = context.get_color(Gtk.StateType.NORMAL)
         # the color components are stored as float values between 0.0 and 1.0
-        return '#%.2X%.2X%.2X' % (int(fg_color.red * 255), int(fg_color.green * 255),
+        return '#%.2X%.2X%.2X' % (int(fg_color.red * 255),
+                                  int(fg_color.green * 255),
                                   int(fg_color.blue * 255))
 
     def set_color(self, color):

src/sugar3/graphics/icon.py

@@ -209,7 +209,7 @@ class _IconBuffer(object):
             # try read from the .icon file
             icon_filename = info.get_filename().replace('.svg', '.icon')
             if icon_filename != info.get_filename() and \
-                            os.path.exists(icon_filename):
+                    os.path.exists(icon_filename):
 
                 try:
                     with open(icon_filename) as config_file:
@@ -1309,8 +1309,7 @@ class CellRendererIcon(Gtk.CellRenderer):
                 # widget is the treeview
                 x, y = widget.get_pointer()
                 x, y = widget.convert_widget_to_bin_window_coords(x, y)
-                return ((cell_area.x <= x <= cell_area.x + cell_area.width)
-                        and
+                return ((cell_area.x <= x <= cell_area.x + cell_area.width) and
                         (cell_area.y <= y <= cell_area.y + cell_area.height))
 
             pointer_inside = is_pointer_inside()
@@ -1379,10 +1378,10 @@ def get_icon_state(base_name, perc, step=5):
     '''
     Get the closest icon name for a given state in percent.
 
-    First, you need a set of icons.  They must be prefixed with `base_name`, for
-    example "network-wireless".  They must be suffixed with 3 digit percentage
-    numbers, for example "-000", "-200", etc.  Eventually, you get a collection
-    of icon names like:
+    First, you need a set of icons. They must be prefixed with `base_name`,
+    for example "network-wireless". They must be suffixed with 3 digit
+    percentage numbers, for example "-000", "-200", etc. Eventually, you get
+    a collection of icon names like:
 
     * network-wireless-000
     * network-wireless-020

src/sugar3/graphics/notebook.py

@@ -37,7 +37,8 @@ if not hasattr(GObject.ParamFlags, 'READWRITE'):
 class Notebook(Gtk.Notebook):
     '''
     Notebook class that creates a :class:`Gtk.Notebook`. It is possible to set
-    the `can-close-tabs` property from the constructor through Notebook(can_close_tabs=True)
+    the `can-close-tabs` property from the constructor
+    through Notebook(can_close_tabs=True)
     '''
     __gtype_name__ = 'SugarNotebook'
 
@@ -112,7 +113,8 @@ class Notebook(Gtk.Notebook):
         '''
         Adds a page to the notebook and sets the newly added page as current.
         Returns True if the page is successfully added to the notebook.
-        If `can-close-tabs` is true, then a GtkEventBox is also created to close the tab.
+        If `can-close-tabs` is true, then a GtkEventBox is also created
+        to close the tab.
 
         Args:
             text_label (string): label of page to be added

src/sugar3/graphics/objectchooser.py

@@ -51,8 +51,10 @@ def get_preview_pixbuf(preview_data, width=-1, height=-1):
             sugar3.datastore.datastore.DSObject.get_metadata() method.
 
     Keyword Args:
-        width (int): the pixbuf width, if is not set, the default width will be used
-        height (int): the pixbuf width, if is not set, the default height will be used
+        width (int): the pixbuf width, if is not set,
+        the default width will be used
+        height (int): the pixbuf width, if is not set,
+        the default height will be used
 
     Returns:
         Pixbuf, the generated Pixbuf
@@ -117,8 +119,9 @@ class ObjectChooser(object):
     """
     UI interface for object choosers.
 
-    Object choosers can be used by acivities to allow the user to select objects
-    from the file system or from some other similar source.
+    Object choosers can be used by acivities to allow the
+    user to select objects from the file system or from
+    some other similar source.
 
     Keyword Args:
         parent (:class:`Gtk.Widget`): the widget calling ObjectChooser
@@ -194,8 +197,8 @@ class ObjectChooser(object):
         Runs the object chooser and displays it.
 
         Returns:
-            Gtk.ResponseType constant, the response received from displaying the
-                object chooser.
+            Gtk.ResponseType constant, the response received
+            from displaying the object chooser.
         """
         self._object_id = None
 

src/sugar3/graphics/palettewindow.py

@@ -1319,7 +1319,7 @@ class CursorInvoker(Invoker):
         self._leave_hid = self._item.connect('leave-notify-event',
                                              self.__leave_notify_event_cb)
         self._release_hid = self._item.connect('button-release-event',
-                                             self.__button_release_event_cb)
+                                               self.__button_release_event_cb)
         self._long_pressed_hid = self._long_pressed_controller.connect(
             'pressed',
             self.__long_pressed_event_cb, self._item)

src/sugar3/graphics/scrollingdetector.py

@@ -33,16 +33,16 @@ from gi.repository import GLib
 class ScrollingDetector(GObject.GObject):
     '''
     The scrolling detector sends signals when a scrolled window is scrolled and
-    when a scrolled window stops scrolling. Only one `scroll-start` signal will be
-        emitted until scrolling stops.
+    when a scrolled window stops scrolling. Only one `scroll-start`
+    signal will be emitted until scrolling stops.
 
     The `scroll-start` signal is emitted when scrolling begins and
     The `scroll-end` signal is emitted when scrolling ends
     Neither of these two signals have any arguments
 
     Args:
-        scrolled_window (Gtk.ScrolledWindow): A GTK scrolled window object for which
-            scrolling is to be detected
+        scrolled_window (Gtk.ScrolledWindow): A GTK scrolled window
+        object for which scrolling is to be detected
 
         timeout (int): time in milliseconds to establish the interval for which
             scrolling is detected

src/sugar3/graphics/toolbox.py

@@ -78,7 +78,8 @@ class Toolbox(Gtk.VBox):
         Args:
             name (string): name of toolbar to be added
 
-            toolbar (.. :class:`Gtk.Toolbar`): Gtk.Toolbar to be appended to this toolbox
+            toolbar (.. :class:`Gtk.Toolbar`):
+            Gtk.Toolbar to be appended to this toolbox
         '''
         label = Gtk.Label(label=name)
         req = label.size_request()

src/sugar3/graphics/xocolor.py

@@ -210,7 +210,8 @@ colors = [['#B20008', '#FF2B34'],
 
 def _parse_string(color_string):
     '''
-    Returns array of length 2 of two colors in standard html form of [stroke color, fill color]
+    Returns array of length 2 of two colors in standard html
+    form of [stroke color, fill color]
 
     Args:
         color_string (string): two html format strings separated by a comma

src/sugar3/mime.py

@@ -33,7 +33,8 @@ from gi.repository import GdkPixbuf
 from gi.repository import Gio
 
 
-def _(msg): return gettext.dgettext('sugar-toolkit-gtk3', msg)
+def _(msg):
+    return gettext.dgettext('sugar-toolkit-gtk3', msg)
 
 
 GENERIC_TYPE_TEXT = 'Text'

src/sugar3/profile.py

@@ -88,11 +88,11 @@ class Profile(object):
             return None
 
         magic = 'ssh-dss '
-        for l in lines:
-            l = l.strip()
-            if not l.startswith(magic):
+        for line in lines:
+            line = line.strip()
+            if not line.startswith(magic):
                 continue
-            return l[len(magic):]
+            return line[len(magic):]
         else:
             logging.error('Error parsing public key.')
             return None
@@ -114,17 +114,17 @@ class Profile(object):
         key = ""
         begin_found = False
         end_found = False
-        for l in lines:
-            l = l.strip()
-            if l.startswith(('-----BEGIN DSA PRIVATE KEY-----',
-                             '-----BEGIN OPENSSH PRIVATE KEY-----')):
+        for line in lines:
+            line = line.strip()
+            if line.startswith(('-----BEGIN DSA PRIVATE KEY-----',
+                                '-----BEGIN OPENSSH PRIVATE KEY-----')):
                 begin_found = True
                 continue
-            if l.startswith(('-----END DSA PRIVATE KEY-----',
-                             '-----END OPENSSH PRIVATE KEY-----')):
+            if line.startswith(('-----END DSA PRIVATE KEY-----',
+                                '-----END OPENSSH PRIVATE KEY-----')):
                 end_found = True
                 continue
-            key += l
+            key += line
         if not (len(key) and begin_found and end_found):
             logging.error('Error parsing public key.')
             return None

src/sugar3/util.py

@@ -32,7 +32,8 @@ import logging
 import atexit
 
 
-def _(msg): return gettext.dgettext('sugar-toolkit-gtk3', msg)
+def _(msg):
+    return gettext.dgettext('sugar-toolkit-gtk3', msg)
 
 
 def printable_hash(in_hash):