release_notes.py: add support for more recent libraries versions

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>

1 files changed, 29 insertions, 3 deletions

diff --git a/release_notes.py b/release_notes.py
index 454f384..3c0964b 100755
--- a/release_notes.py
+++ b/release_notes.py
@@ -23,7 +23,17 @@
 
 from bs4 import BeautifulSoup
 from html2text import config, HTML2Text
-from html2text.utils import wrapwrite
+
+try:
+    # This has been removed in more recent
+    # versions of python-html2text. See commit
+    # b361467894fb277563b4547ec9d4df49f5e0c6e3
+    # (b361467 Remove support for Python ≤ 3.4)
+    # in https://github.com/Alir3z4/html2text.git
+    from html2text.utils import wrapwrite
+except:
+    pass
+
 import sys
 
 def usage(progname):
@@ -36,7 +46,20 @@ if len(sys.argv) != 2:
 html_file_path = sys.argv[1]
 
 with open(html_file_path) as html_file:
-    soup = BeautifulSoup(html_file, features="lxml").article
+    try:
+        soup = BeautifulSoup(html_file, features="html5lib").article
+    except:
+        try:
+            # For some reason the lxml parser isn't found with
+            # python-beautifulsoup4 4.9.3-3.0 on Parabola. It's
+            # probably better to use an html5 parser anyway as the
+            # Replicant blog (now?) uses the html doctype and the
+            # theme seems to include an html5.js file for the IE 9
+            # browser.
+            soup = BeautifulSoup(html_file, features="lxml").article
+        except:
+            print("Cannot find html5lib or lxml parsers")
+            sys.exit(1)
 
 # Format the output to be compatible with mail conventions but make sure that
 # the links are not split between two lines
@@ -46,4 +69,7 @@ config.WRAP_LIST_ITEMS = True
 config.BODY_WIDTH = 70
 
 parser = HTML2Text()
-wrapwrite(parser.handle(soup.decode()))
+try:
+    wrapwrite(parser.handle(soup.decode()))
+except:
+    sys.stdout.write(parser.handle(soup.decode()))