bugdown: Remove unused imports.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

zerver/lib/bugdown/__init__.py

@@ -13,18 +13,16 @@ import re
 import regex
 import os
 import html
-import platform
 import time
 import functools
 import ujson
 import xml.etree.cElementTree as etree
-from xml.etree.cElementTree import Element, SubElement
+from xml.etree.cElementTree import Element
 
 from collections import deque, defaultdict
 
 import requests
 
-from django.core import mail
 from django.conf import settings
 from django.db.models import Q
 
@@ -46,7 +44,6 @@ from zerver.models import (
     MAX_MESSAGE_LENGTH,
     Message,
     Realm,
-    RealmFilter,
     realm_filters_for_realm,
     UserProfile,
     UserGroup,

zerver/lib/bugdown/api_code_examples.py

@@ -1,6 +1,4 @@
 import re
-import os
-import sys
 import json
 import inspect
 

zerver/lib/bugdown/fenced_code.py

@@ -77,12 +77,11 @@ Dependencies:
 """
 
 import re
-import subprocess
 import markdown
 from django.utils.html import escape
 from markdown.extensions.codehilite import CodeHilite, CodeHiliteExtension
 from zerver.lib.tex import render_tex
-from typing import Any, Dict, Iterable, List, MutableSequence, Optional, Tuple, Union
+from typing import Any, Dict, Iterable, List, MutableSequence
 
 # Global vars
 FENCE_RE = re.compile("""

zerver/lib/bugdown/help_emoticon_translations_table.py

@@ -1,6 +1,6 @@
 import re
 import markdown
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List
 from typing.re import Match
 from markdown.preprocessors import Preprocessor
 

zerver/lib/bugdown/help_relative_links.py

@@ -1,6 +1,6 @@
 import re
 import markdown
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Optional
 from typing.re import Match
 from markdown.preprocessors import Preprocessor
 

zerver/lib/bugdown/help_settings_links.py

@@ -1,6 +1,6 @@
 import re
 import markdown
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Optional
 from typing.re import Match
 from markdown.preprocessors import Preprocessor
 

zerver/lib/bugdown/include.py

@@ -1,7 +1,7 @@
 from __future__ import print_function
 import re
 import os
-from typing import Any, Dict, Optional, List
+from typing import Any, Dict, List
 
 import markdown
 from markdown_include.include import MarkdownInclude, IncludePreprocessor

zerver/lib/bugdown/nested_code_blocks.py

@@ -1,5 +1,4 @@
 from markdown.extensions import Extension
-from markdown.treeprocessors import Treeprocessor
 from typing import Any, Dict, Optional, List, Tuple
 import markdown
 from xml.etree.cElementTree import Element

zerver/lib/bugdown/tabbed_sections.py

@@ -2,7 +2,7 @@ import re
 
 from markdown.extensions import Extension
 from markdown.preprocessors import Preprocessor
-from typing import Any, Dict, Optional, List, Tuple
+from typing import Any, Dict, Optional, List
 import markdown
 
 START_TABBED_SECTION_REGEX = re.compile(r'^\{start_tabs\}$')