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[utils] Move base62 to utils

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This commit is contained in:
Yen Chi Hsuan
2016-02-24 22:08:40 +08:00
parent e048d87fc9
commit 81bdc8fdf6
2 changed files with 16 additions and 13 deletions
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14
youtube_dl/utils.py
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@ -2619,3 +2619,17 @@ def ohdave_rsa_encrypt(data, exponent, modulus):
payload = int(binascii.hexlify(data[::-1]), 16)
encrypted = pow(payload, exponent, modulus)
return '%x' % encrypted
def base_n(num, n, table):
if num == 0:
return '0'
ret = ''
while num:
ret = table[num % n] + ret
num = num // n
return ret
def base62(num):
return base_n(num, 62, '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ')