diff --git a/_deploy/xubuntu/os-trog.sh b/_deploy/xubuntu/os-trog.sh
index 8d9c0cd..8d55263 100755
--- a/_deploy/xubuntu/os-trog.sh
+++ b/_deploy/xubuntu/os-trog.sh
@@ -75,7 +75,7 @@ sudo ln -s /etc/alternatives/python /usr/bin/python3
 sudo apt dist-upgrade
 
 
-# install VS code
+# install VS code - but ONLY on a native ubuntu install, NOT in WSL
 sudo apt install software-properties-common apt-transport-https wget gpg
 wget -qO- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > packages.microsoft.gpg
 sudo install -D -o root -g root -m 644 packages.microsoft.gpg /etc/apt/keyrings/packages.microsoft.gpg
diff --git a/core/TESTS/test_parsers.py b/core/TESTS/test_parsers.py
index 8274f89..1c7b929 100644
--- a/core/TESTS/test_parsers.py
+++ b/core/TESTS/test_parsers.py
@@ -171,7 +171,7 @@ class ImportTest(TestCase):
             # f.write(content)        
         expected = [
             "Edit Logbook Entry on 1986-07-31",
-            "Other names \(comma separated\)", # regex so slashes need to be espcaped
+            r"Other names \(comma separated\)", # regex match so slashes need to be espcaped
             "Place: cave name, or 'plateau', 'topcamp' etc.",
         ]
         for ph in expected:
diff --git a/core/views/prospect.py b/core/views/prospect.py
index 561c6d3..cff53f5 100644
--- a/core/views/prospect.py
+++ b/core/views/prospect.py
@@ -129,7 +129,7 @@ for FONT in [
     "/usr/share/fonts/truetype/freefont/FreeSans.ttf",
     "/usr/X11R6/lib/X11/fonts/truetype/arial.ttf",
     "/mnt/c/windows/fonts/arial.ttf",
-    "C:\WINNT\Fonts\ARIAL.TTF",
+    r"C:\WINNT\Fonts\ARIAL.TTF",
 ]:
     if os.path.isfile(FONT):
         break
diff --git a/parsers/logbooks.py b/parsers/logbooks.py
index 9e92dfc..892066b 100644
--- a/parsers/logbooks.py
+++ b/parsers/logbooks.py
@@ -326,7 +326,7 @@ def parser_date(tripdate, year):
 
 
 def parser_html(year, expedition, txt, seq=""):
-    """This uses some of the more obscure capabilities of regular expressions,
+    r"""This uses some of the more obscure capabilities of regular expressions,
     see https://docs.python.org/3/library/re.html
     
     e.g.
diff --git a/parsers/people.py b/parsers/people.py
index 97793a6..fc83be2 100644
--- a/parsers/people.py
+++ b/parsers/people.py
@@ -68,13 +68,13 @@ def troggle_slugify(longname):
     This function copied intact to expoweb/scripts/make-folklist.py
     """
     slug = longname.strip().lower().replace(" ","-")
-    slug = re.sub('\([^\)]*\)','',slug) # remove nickname in brackets
+    slug = re.sub(r'\([^\)]*\)','',slug) # remove nickname in brackets
     slug = slug.replace('é', 'e') 
     slug = slug.replace('á', 'a') 
     slug = slug.replace('ä', 'a') 
     slug = slug.replace('&', '') # otherwise just remove the &
     slug = slug.replace(';', '') # otherwise just remove the ;
-    slug = re.sub('<[^>]*>','',slug) # remove <span-lang = "hu">
+    slug = re.sub(r'<[^>]*>','',slug) # remove <span-lang = "hu">
 
     if len(slug) > 40: # slugfield is 50 chars
         slug = slug[:40]
diff --git a/parsers/survex.py b/parsers/survex.py
index 4c0a6e5..5c59e6d 100644
--- a/parsers/survex.py
+++ b/parsers/survex.py
@@ -2428,9 +2428,9 @@ def FindAndLoadSurvex():
         ff = survexblock.survexfile
         if comment:
             # print(f"FIX {survexblock} {altitude} {comment}")
-            if re.match("(?i)[^s]*srtm[\s\S]*", comment.lower()):
+            if re.match(r"(?i)[^s]*srtm[\s\S]*", comment.lower()):
                 print(f"SRTM {ff}.svx::{survexblock} - {spath}.svx - alt={altitude} '{comment}'")
-            if re.match("(?i)[^s]*radost[\s\S]*", comment.lower()):
+            if re.match(r"(?i)[^s]*radost[\s\S]*", comment.lower()):
                 print(f"RDST {ff}.svx::{survexblock} - {spath}.svx - alt={altitude} '{comment}'")
         
     svx_load = None