Add v2 alpha

src/common.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+import random
+import re
+import string
+
+
+def get_random_string(length=7, chars=string.ascii_lowercase + string.digits):
+    return "".join(random.choice(chars) for _ in range(length))
+
+
+def parse_display_name_email(display_name_email):
+    # Parse the name and email address from a string in the following format
+    # Display Name <email@address.com>
+    pattern = re.compile(r"^([^<]+)\s*<([^>]+)>$")
+
+    # Check we have a match
+    match = pattern.match(display_name_email)
+    if match is None:
+        raise ValueError(
+            f"The format of '{display_name_email}' is not a valid email address with display name"
+        )
+
+    # Check that name and email are not just whitespace
+    name = match.group(1).strip()
+    email = match.group(2).strip()
+    if len(name) == 0 or len(email) == 0:
+        raise ValueError(
+            f"The format of '{display_name_email}' is not a valid email address with display name"
+        )
+
+    return name, email