Replace syutil references in scripts

scripts-dev/check_event_hash.py

@@ -1,5 +1,5 @@
 from synapse.crypto.event_signing import *
-from syutil.base64util import encode_base64
+from unpaddedbase64 import encode_base64
 
 import argparse
 import hashlib

scripts-dev/check_signature.py

@@ -1,9 +1,7 @@
 
-from syutil.crypto.jsonsign import verify_signed_json
-from syutil.crypto.signing_key import (
-    decode_verify_key_bytes, write_signing_keys
-)
-from syutil.base64util import decode_base64
+from signedjson.sign import verify_signed_json
+from signedjson.key import decode_verify_key_bytes, write_signing_keys
+from unpaddedbase64 import decode_base64
 
 import urllib2
 import json

scripts-dev/convert_server_keys.py

@@ -4,10 +4,10 @@ import sys
 import json
 import time
 import hashlib
-from syutil.base64util import encode_base64
-from syutil.crypto.signing_key import read_signing_keys
-from syutil.crypto.jsonsign import sign_json
-from syutil.jsonutil import encode_canonical_json
+from unpaddedbase64 import encode_base64
+from signedjson.key import read_signing_keys
+from signedjson.sign import sign_json
+from canonicaljson import encode_canonical_json
 
 
 def select_v1_keys(connection):

scripts-dev/hash_history.py

@@ -6,8 +6,8 @@ from synapse.crypto.event_signing import (
     add_event_pdu_content_hash, compute_pdu_event_reference_hash
 )
 from synapse.api.events.utils import prune_pdu
-from syutil.base64util import encode_base64, decode_base64
-from syutil.jsonutil import encode_canonical_json
+from unpaddedbase64 import encode_base64, decode_base64
+from canonicaljson import encode_canonical_json
 import sqlite3
 import sys