diff --git a/main.py b/main.py
index 665a655..34dd27d 100755
--- a/main.py
+++ b/main.py
@@ -22,6 +22,7 @@
     del sys.argv[-1]
 del magic
 
+import getpass
 import netrc
 import optparse
 import os
@@ -276,7 +277,25 @@
     req.add_header('User-Agent', _UserAgent())
     return req
 
+def _AddPasswordFromUserInput(handler, msg, req):
+    # If repo could not find auth info from netrc, try to get it from user input
+    url = req.get_full_url()
+    user, password = handler.passwd.find_user_password(None, url)
+    if user is None:
+      print msg
+      try:
+        user = raw_input('User: ')
+        password = getpass.getpass()
+      except KeyboardInterrupt:
+        return
+      handler.passwd.add_password(None, url, user, password)
+
 class _BasicAuthHandler(urllib2.HTTPBasicAuthHandler):
+  def http_error_401(self, req, fp, code, msg, headers):
+    _AddPasswordFromUserInput(self, msg, req)
+    return urllib2.HTTPBasicAuthHandler.http_error_401(
+      self, req, fp, code, msg, headers)
+
   def http_error_auth_reqed(self, authreq, host, req, headers):
     try:
       old_add_header = req.add_header
@@ -295,6 +314,11 @@
       raise
 
 class _DigestAuthHandler(urllib2.HTTPDigestAuthHandler):
+  def http_error_401(self, req, fp, code, msg, headers):
+    _AddPasswordFromUserInput(self, msg, req)
+    return urllib2.HTTPDigestAuthHandler.http_error_401(
+      self, req, fp, code, msg, headers)
+
   def http_error_auth_reqed(self, auth_header, host, req, headers):
     try:
       old_add_header = req.add_header