diff --git a/src/gpodder/download.py b/src/gpodder/download.py
index df8e87b9..020263ed 100644
--- a/src/gpodder/download.py
+++ b/src/gpodder/download.py
@@ -539,7 +539,7 @@ class DownloadTask(object):
     of downloading data, this can take a while when the Internet is
     busy).
 
-    The "status_changed" attribute gets set to True everytime the
+    The "status_changed" attribute gets set to True every time the
     "status" attribute changes its value. After you get the value of
     the "status_changed" attribute, it is always reset to False:
 
diff --git a/src/gpodder/gtkui/main.py b/src/gpodder/gtkui/main.py
index 5742c78e..c833aa14 100644
--- a/src/gpodder/gtkui/main.py
+++ b/src/gpodder/gtkui/main.py
@@ -2414,7 +2414,7 @@ class gPodder(BuilderWidget, dbus.service.Object):
                         if episode is None:
                             logger.info('Invalid episode at path %s', str(path))
                             continue
-                    except TypeError as te:
+                    except TypeError as e:
                         logger.error('Invalid episode at path %s', str(path))
                         continue
 
@@ -2447,7 +2447,7 @@ class gPodder(BuilderWidget, dbus.service.Object):
                         if task is None:
                             logger.info('Invalid task at path %s', str(path))
                             continue
-                    except TypeError as te:
+                    except TypeError as e:
                         logger.error('Invalid task at path %s', str(path))
                         continue
 
diff --git a/src/gpodder/util.py b/src/gpodder/util.py
index 61218469..9eb3e1b0 100644
--- a/src/gpodder/util.py
+++ b/src/gpodder/util.py
@@ -543,10 +543,10 @@ def format_date(timestamp):
     yesterday = time.localtime(time.time() - seconds_in_a_day)[:3]
     try:
         timestamp_date = time.localtime(timestamp)[:3]
-    except ValueError as ve:
+    except ValueError as e:
         logger.warning('Cannot convert timestamp', exc_info=True)
         return None
-    except TypeError as te:
+    except TypeError as e:
         logger.warning('Cannot convert timestamp', exc_info=True)
         return None
 
@@ -679,7 +679,7 @@ def remove_html_tags(html):
     return result.strip()
 
 
-class HyperlinkExtracter(object):
+class HyperlinkExtractor(object):
     def __init__(self):
         self.parts = []
         self.target_stack = [None]
@@ -773,9 +773,9 @@ class HyperlinkExtracter(object):
 
 class ExtractHyperlinkedText(object):
     def __call__(self, document):
-        self.extracter = HyperlinkExtracter()
+        self.extractor = HyperlinkExtractor()
         self.visit(document)
-        return self.extracter.get_result()
+        return self.extractor.get_result()
 
     def visit(self, element):
         # skip functions generated by html5lib for comments in the HTML
@@ -784,42 +784,42 @@ class ExtractHyperlinkedText(object):
 
         NS = '{http://www.w3.org/1999/xhtml}'
         tag_name = (element.tag[len(NS):] if element.tag.startswith(NS) else element.tag).lower()
-        self.extracter.handle_starttag(tag_name, list(element.items()))
+        self.extractor.handle_starttag(tag_name, list(element.items()))
 
         if element.text is not None:
-            self.extracter.handle_data(element.text)
+            self.extractor.handle_data(element.text)
 
         for child in element:
             self.visit(child)
 
             if child.tail is not None:
-                self.extracter.handle_data(child.tail)
+                self.extractor.handle_data(child.tail)
 
-        self.extracter.handle_endtag(tag_name)
+        self.extractor.handle_endtag(tag_name)
 
 
 class ExtractHyperlinkedTextHTMLParser(HTMLParser):
     def __call__(self, html):
-        self.extracter = HyperlinkExtracter()
+        self.extractor = HyperlinkExtractor()
         self.target_stack = [None]
         self.feed(html)
         self.close()
-        return self.extracter.get_result()
+        return self.extractor.get_result()
 
     def handle_starttag(self, tag, attrs):
-        self.extracter.handle_starttag(tag, attrs)
+        self.extractor.handle_starttag(tag, attrs)
 
     def handle_endtag(self, tag):
-        self.extracter.handle_endtag(tag)
+        self.extractor.handle_endtag(tag)
 
     def handle_data(self, data):
-        self.extracter.handle_data(data)
+        self.extractor.handle_data(data)
 
     def handle_entityref(self, name):
-        self.extracter.handle_entityref(name)
+        self.extractor.handle_entityref(name)
 
     def handle_charref(self, name):
-        self.extracter.handle_charref(name)
+        self.extractor.handle_charref(name)
 
 
 def extract_hyperlinked_text(html):
@@ -1002,7 +1002,7 @@ def filename_from_url(url):
     http://server/get.jsp?file=/episode0815.MOV => ("episode0815", ".mov")
     http://s/redirect.mp4?http://serv2/test.mp4 => ("test", ".mp4")
     """
-    (scheme, netloc, path, para, query, fragid) = urllib.parse.urlparse(url)
+    (scheme, netloc, path, params, query, fragment) = urllib.parse.urlparse(url)
     (filename, extension) = os.path.splitext(
         os.path.basename(urllib.parse.unquote(path)))
 
@@ -1536,7 +1536,7 @@ def format_seconds_to_hour_min_sec(seconds):
 
 
 def http_request(url, method='HEAD'):
-    (scheme, netloc, path, parms, qry, fragid) = urllib.parse.urlparse(url)
+    (scheme, netloc, path, params, query, fragment) = urllib.parse.urlparse(url)
     if scheme == 'https':
         conn = http.client.HTTPSConnection(netloc)
     else:
diff --git a/tools/github_release.py b/tools/github_release.py
index 2cd289be..adcb6811 100755
--- a/tools/github_release.py
+++ b/tools/github_release.py
@@ -83,11 +83,11 @@ def checksums():
         m = hashlib.md5()
         s = hashlib.sha256()
         with open(archive, "rb") as f:
-            bloc = f.read(4096)
-            while bloc:
-                m.update(bloc)
-                s.update(bloc)
-                bloc = f.read(4096)
+            block = f.read(4096)
+            while block:
+                m.update(block)
+                s.update(block)
+                block = f.read(4096)
         ret[os.path.basename(archive)] = dict(md5=m.hexdigest(), sha256=s.hexdigest())
     return ret