Handle exceptions and exit codes better

[lightcards.git] / lightcards / parse.py

diff --git a/lightcards/parse.py b/lightcards/parse.py
index 6fc2a759cf2ac152f636b9a376efa9ddf2d9db29..3a1306bfae98840ba312fc58deff160d667ceeb8 100644 (file)
--- a/lightcards/parse.py
+++ b/lightcards/parse.py
@@ -13,7 +13,9 @@ def md2html(file):
     try:
         return markdown.markdown(open(file, "r").read(), extensions=["tables"])
     except FileNotFoundError:
-        sys.exit(f'lightcards: "{file}": No such file or directory')
+        raise Exception(
+            f'lightcards: "{file}": No such file or directory'
+        ) from None
 
 
 def parse_html(html):
@@ -29,11 +31,11 @@ def parse_html(html):
         for x in soup.find_all("tr"):
             outp.append(Card(tuple([clean_text(y) for y in x.find_all("td")])))
     except AttributeError:
-        sys.exit("lightcards: No table found")
+        raise Exception("lightcards: No table found") from None
 
     ths = soup.find_all("th")
     if len(ths) != 2:
-        sys.exit("lightcards: Headings malformed")
+        raise Exception("lightcards: Headings malformed")
 
     # Return a tuple of nested lists
     return ([clean_text(x) for x in ths], outp[1:])