Fixed an issue where it fails to encode zero (0)

base62.py

@@ -5,22 +5,25 @@
 
 __author__ = 'Sumin Byeon'
 __email__ = '[email protected]'
-__version__ = '0.1.2'
+__version__ = '0.1.3'
 
 CHARSET = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
 BASE = 62
 
 def encode(n):
     """Encodes a given integer ``n``."""
-    
+
     s = []
     while n > 0:
         r = n % BASE
         n //= BASE
 
         s.append(CHARSET[r])
 
-    s.reverse()
+    if len(s) > 0:
+        s.reverse()
+    else:
+        s.append('0')
 
     return ''.join(s)
 

tests/test_basic.py

@@ -1,5 +1,8 @@
 import base62
 
 def test_basic():
+    assert base62.encode(0) == '0'
+    assert base62.decode('0') == 0
+
     assert base62.encode(34441886726) == 'base62'
     assert base62.decode('base62') == 34441886726