Switch to css-inline

inlinestyler hasn't been maintained for a while.

.mypy.ini

@@ -29,9 +29,6 @@ ignore_missing_imports = True
 [mypy-barcode.*]
 ignore_missing_imports = True
 
-[mypy-inlinestyler.*]
-ignore_missing_imports = True
-
 [mypy-pywisetransfer.*]
 ignore_missing_imports = True
 

apps/common/email.py

@@ -1,5 +1,5 @@
+from css_inline import CSSInliner
 import markdown
-from inlinestyler.utils import inline_css
 from flask import render_template, url_for
 from markupsafe import Markup
 from flask import current_app as app
@@ -98,7 +98,8 @@ def format_trusted_html_email(markdown_text, subject, reason=None, **kwargs):
     if not reason:
         reason = f"You're receiving this email because you have a ticket for Electromagnetic Field {event_year()}."
 
-    return inline_css(
+    inliner = CSSInliner()
+    return inliner.inline(
         render_template(
             "admin/email/email_template.html",
             subject=subject,

pyproject.toml

@@ -21,7 +21,6 @@ python-levenshtein = "~=0.12"
 simplejson = "*"
 requests = "~=2.29"
 markdown = "~=3.1"
-inlinestyler = "~=0.2"
 flask = "~=2.3"
 flask-caching = "~=2.0"
 python-memcached = "==1.59"
@@ -66,6 +65,7 @@ logging_tree = "^1.9"
 flask-mailman = "^0.3.0"
 python-stdnum = "^1.19"
 playwright = "^1.43.0"
+css-inline = "^0.14.0"
 
 
 [tool.poetry.group.dev.dependencies]