diff --git a/Changelog.yaml b/Changelog.yaml
index 716bfb7195..61166f5851 100644
--- a/Changelog.yaml
+++ b/Changelog.yaml
@@ -1175,7 +1175,7 @@
- title: "Amazon metadata download: Recognize common patterns of embedding the series name after the title and remove it automatically"
- - title: "Edit book: Add support for EPUB 3 to the Table of Contents tool. Now when editing EPUB 3 files using the tool will automatically generate both the EPUB 3 navigation document and the NCX table of contents for backwards compatibility"
+ - title: "Edit book: Add support for EPUB 3 to the Table of Contents tool. Now when editing EPUB 3 files using the tool will automatically generate both the EPUB 3 navigation document and the NCX Table of Contents for backwards compatibility"
- title: "EPUB input: Implement reading of Table of Contents from EPUB 3 files that do not specify a fallback NCX ToC"
diff --git a/resources/default_tweaks.py b/resources/default_tweaks.py
index d4250f400d..a143ea75e7 100644
--- a/resources/default_tweaks.py
+++ b/resources/default_tweaks.py
@@ -458,9 +458,9 @@ maximum_cover_size = (1650, 2200)
# the files will be sent to the location with the most free space.
send_news_to_device_location = "main"
-#: Unified toolbar on OS X
+#: Unified toolbar on macOS
# If you enable this option and restart calibre, the toolbar will be 'unified'
-# with the titlebar as is normal for OS X applications. However, doing this has
+# with the titlebar as is normal for macOS applications. However, doing this has
# various bugs, for instance the minimum width of the toolbar becomes twice
# what it should be and it causes other random bugs on some systems, so turn it
# on at your own risk!
diff --git a/src/calibre/devices/usbms/device.py b/src/calibre/devices/usbms/device.py
index 77d7795f6b..8b395c5a5f 100644
--- a/src/calibre/devices/usbms/device.py
+++ b/src/calibre/devices/usbms/device.py
@@ -62,7 +62,7 @@ class USBDevice:
return False
if man == self.manufacturer and prod == self.product:
return True
- # As of OS X 10.11.4 Apple started mangling the names returned via the
+ # As of macOS 10.11.4 Apple started mangling the names returned via the
# IOKit registry. See
# https://www.mobileread.com/forums/showthread.php?t=273213
m = osx_sanitize_name_pat.sub('_', (self.manufacturer or ''))
@@ -101,7 +101,7 @@ class Device(DeviceConfig, DevicePlugin):
#: Used by the new driver detection to disambiguate main memory from
#: storage cards. Should be a regular expression that matches the
- #: main memory mount point assigned by OS X
+ #: main memory mount point assigned by macOS
OSX_MAIN_MEM_VOL_PAT = None
OSX_EJECT_COMMAND = ['diskutil', 'eject']
diff --git a/src/calibre/ebooks/oeb/polish/check/opf.py b/src/calibre/ebooks/oeb/polish/check/opf.py
index 50f0f4edab..4e9a874b41 100644
--- a/src/calibre/ebooks/oeb/polish/check/opf.py
+++ b/src/calibre/ebooks/oeb/polish/check/opf.py
@@ -65,7 +65,7 @@ class IncorrectToc(BaseError):
self.HELP = _('There is no item with id="%s" in the manifest.') % bad_idref
else:
msg = _('The item identified as the Table of Contents has an incorrect media-type (%s)') % bad_mimetype
- self.HELP = _('The media type for the table of contents must be %s') % guess_type('a.ncx')
+ self.HELP = _('The media type for the Table of Contents must be %s') % guess_type('a.ncx')
BaseError.__init__(self, msg, name, lnum)
diff --git a/src/calibre/ebooks/oeb/polish/toc.py b/src/calibre/ebooks/oeb/polish/toc.py
index 0c9d643536..44c9c52db1 100644
--- a/src/calibre/ebooks/oeb/polish/toc.py
+++ b/src/calibre/ebooks/oeb/polish/toc.py
@@ -379,7 +379,7 @@ def from_xpaths(container, xpaths):
Generate a Table of Contents from a list of XPath expressions. Each
expression in the list corresponds to a level of the generate ToC. For
example: :code:`['//h:h1', '//h:h2', '//h:h3']` will generate a three level
- table of contents from the ``
``, ```` and ```` tags.
+ Table of Contents from the ````, ```` and ```` tags.
'''
tocroot = TOC()
xpaths = [XPath(xp) for xp in xpaths]
@@ -771,7 +771,7 @@ def toc_to_html(toc, container, toc_name, title, lang=None):
def create_inline_toc(container, title=None):
'''
- Create an inline (HTML) Table of Contents from an existing NCX table of contents.
+ Create an inline (HTML) Table of Contents from an existing NCX Table of Contents.
:param title: The title for this table of contents.
'''
diff --git a/src/calibre/gui2/open_with.py b/src/calibre/gui2/open_with.py
index ba7ce3349a..dff5f3c78e 100644
--- a/src/calibre/gui2/open_with.py
+++ b/src/calibre/gui2/open_with.py
@@ -139,7 +139,7 @@ if iswindows:
# }}}
elif isosx:
- # OS X {{{
+ # macOS {{{
oprefs = JSONConfig('osx_open_with')
from calibre.utils.open_with.osx import find_programs, get_icon, entry_to_cmdline, get_bundle_data
@@ -171,7 +171,7 @@ elif isosx:
app = get_bundle_data(ans)
if app is None:
return error_dialog(parent, _('Invalid Application'), _(
- '%s is not a valid OS X application bundle.') % ans, show=True)
+ '%s is not a valid macOS application bundle.') % ans, show=True)
return app
if not os.access(ans, os.X_OK):
error_dialog(parent, _('Cannot execute'), _(
diff --git a/src/calibre/gui2/preferences/metadata_sources.ui b/src/calibre/gui2/preferences/metadata_sources.ui
index c983c4e58b..c0ba958c6e 100644
--- a/src/calibre/gui2/preferences/metadata_sources.ui
+++ b/src/calibre/gui2/preferences/metadata_sources.ui
@@ -88,7 +88,7 @@
-
- Downloaded metadata fields
+ Metadata fields to download
-
diff --git a/src/calibre/gui2/store/search/search.py b/src/calibre/gui2/store/search/search.py
index c2dee4c47b..ea762ecb2d 100644
--- a/src/calibre/gui2/store/search/search.py
+++ b/src/calibre/gui2/store/search/search.py
@@ -316,7 +316,7 @@ class SearchDialog(QDialog, Ui_Dialog):
v = QVBoxLayout(d)
button_box.accepted.connect(d.accept)
button_box.rejected.connect(d.reject)
- d.setWindowTitle(_('Customize get books search'))
+ d.setWindowTitle(_('Customize Get books search'))
tab_widget = QTabWidget(d)
v.addWidget(tab_widget)
@@ -437,6 +437,7 @@ class SearchDialog(QDialog, Ui_Dialog):
self.do_search()
return QDialog.exec_(self)
+
if __name__ == '__main__':
from calibre.gui2 import Application
from calibre.gui2.preferences.main import init_gui
@@ -447,5 +448,3 @@ if __name__ == '__main__':
s = SearchDialog(gui, query=' '.join(sys.argv[1:]))
s.exec_()
-
-
diff --git a/src/calibre/gui2/tweak_book/widgets.py b/src/calibre/gui2/tweak_book/widgets.py
index 9a46d55352..b2f8451399 100644
--- a/src/calibre/gui2/tweak_book/widgets.py
+++ b/src/calibre/gui2/tweak_book/widgets.py
@@ -831,7 +831,7 @@ class InsertSemantics(Dialog):
d = info_dialog(self, _('About semantics'), _(
'Semantics refer to additional information about specific locations in the book.'
' For example, you can specify that a particular location is the dedication or the preface'
- ' or the table of contents and so on.\n\nFirst choose the type of semantic information, then'
+ ' or the Table of Contents and so on.\n\nFirst choose the type of semantic information, then'
' choose a file and optionally a location within the file to point to.\n\nThe'
' semantic information will be written in the section of the opf file.'))
d.resize(d.sizeHint())
diff --git a/src/calibre/linux.py b/src/calibre/linux.py
index 0829417ee1..f54c5c09b7 100644
--- a/src/calibre/linux.py
+++ b/src/calibre/linux.py
@@ -1139,7 +1139,7 @@ def main():
def cli_index_strings():
return _('Command Line Interface'), _(
- 'On OS X, the command line tools are inside the calibre bundle, for example,'
+ 'On macOS, the command line tools are inside the calibre bundle, for example,'
' if you installed calibre in :file:`/Applications` the command line tools'
' are in :file:`/Applications/calibre.app/Contents/console.app/Contents/MacOS/`.'), _(
'Documented commands'), _('Undocumented commands'), _(