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-rw-r--r--youtube_dl/utils.py14
1 files changed, 8 insertions, 6 deletions
diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 756ad4fd1..606977c58 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -2621,15 +2621,17 @@ def ohdave_rsa_encrypt(data, exponent, modulus):
return '%x' % encrypted
-def base_n(num, n, table=None):
- if num == 0:
- return '0'
-
+def encode_base_n(num, n, table=None):
FULL_TABLE = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
- assert n <= len(FULL_TABLE)
if not table:
table = FULL_TABLE[:n]
+ if n > len(table):
+ raise ValueError('base %d exceeds table length %d' % (n, len(table)))
+
+ if num == 0:
+ return table[0]
+
ret = ''
while num:
ret = table[num % n] + ret
@@ -2649,7 +2651,7 @@ def decode_packed_codes(code):
while count:
count -= 1
- base_n_count = base_n(count, base)
+ base_n_count = encode_base_n(count, base)
symbol_table[base_n_count] = symbols[count] or base_n_count
return re.sub(