diff --git a/seahub/base/accounts.py b/seahub/base/accounts.py
index 711049f10c..cd218032b7 100644
--- a/seahub/base/accounts.py
+++ b/seahub/base/accounts.py
@@ -31,7 +31,7 @@ from seahub.utils import get_site_name, \
     clear_token, get_system_admins, is_pro_version, IS_EMAIL_CONFIGURED
 from seahub.utils.mail import send_html_email_with_dj_template
 from seahub.utils.licenseparse import user_number_over_limit
-from seahub.share.models import ExtraSharePermission
+from seahub.share.models import ExtraSharePermission, FileShare, UploadLinkShare
 from seahub.utils.auth import gen_user_virtual_id
 from seahub.auth.models import SocialAuthUser
 from seahub.repo_auto_delete.models import RepoAutoDelete
@@ -67,9 +67,11 @@ UNUSABLE_PASSWORD = '!'  # This will never be a valid hash
 def default_ldap_role_mapping(role):
     return role
 
+
 def default_ldap_role_list_mapping(role_list):
     return role_list[0] if role_list else ''
 
+
 ldap_role_mapping = default_ldap_role_mapping
 ldap_role_list_mapping = default_ldap_role_list_mapping
 USE_LDAP_ROLE_LIST_MAPPING = False
@@ -81,15 +83,16 @@ if ENABLE_LDAP:
     try:
         from seahub_custom_functions import ldap_role_mapping
         ldap_role_mapping = ldap_role_mapping
-    except:
+    except Exception:
         pass
     try:
         from seahub_custom_functions import ldap_role_list_mapping
         ldap_role_list_mapping = ldap_role_list_mapping
         USE_LDAP_ROLE_LIST_MAPPING = True
-    except:
+    except Exception:
         pass
 
+
 class UserManager(object):
 
     def create_user(self, email, password=None, is_staff=False, is_active=False):
@@ -425,7 +428,7 @@ class UserPermissions(object):
         if not settings.ENABLE_WIKI:
             return False
         return self._get_perm_by_roles('can_publish_wiki')
-    
+
     def can_choose_office_suite(self):
         if not settings.ENABLE_MULTIPLE_OFFICE_SUITE:
             return False
@@ -626,6 +629,10 @@ class User(object):
         except Exception as e:
             logger.error(e)
 
+        # clear share links
+        FileShare.objects.filter(username=username).delete()
+        UploadLinkShare.objects.filter(username=username).delete()
+
         # remove current user from joined groups
         ccnet_api.remove_group_user(username)
 
@@ -908,7 +915,9 @@ class CustomLDAPBackend(object):
                     sasl_authc_id_attr, base_dn, login_attr_conf, login_attr, password, serch_filter,
                     contact_email_attr, role_attr, follow_referrals):
         try:
-            admin_bind = self.ldap_bind(server_url, admin_dn, admin_dn, admin_password, enable_sasl, sasl_mechanism, follow_referrals)
+            admin_bind = self.ldap_bind(server_url, admin_dn, admin_dn,
+                                        admin_password, enable_sasl,
+                                        sasl_mechanism, follow_referrals)
         except Exception as e:
             raise Exception(e)
 
@@ -943,7 +952,9 @@ class CustomLDAPBackend(object):
             raise Exception('parse ldap result failed: %s' % e)
 
         try:
-            user_bind = self.ldap_bind(server_url, dn, authc_id, password, enable_sasl, sasl_mechanism, follow_referrals)
+            user_bind = self.ldap_bind(server_url, dn, authc_id,
+                                       password, enable_sasl,
+                                       sasl_mechanism, follow_referrals)
         except Exception as e:
             raise Exception(e)