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core: check mpz support before use

This commit is contained in:
mitshell 2017-09-07 00:05:23 +02:00
parent 572e978653
commit 8c98f80fa3
1 changed files with 3 additions and 3 deletions
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6
pycrate_core/utils_py3.py
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@ -1337,12 +1337,12 @@ def uint_to_bytes(val, bitlen=1):
if len_byte == 1:
return bchr(val)
else:
if isinstance(val, _MPZ_T):
if _WITH_MPZ and isinstance(val, _MPZ_T):
return int(val).to_bytes(len_byte, 'big')
else:
return val.to_bytes(len_byte, 'big')
else:
if isinstance(val, _MPZ_T):
if _WITH_MPZ and isinstance(val, _MPZ_T):
return int(val<<(8-len_bit)).to_bytes(len_byte+1, 'big')
else:
return (val<<(8-len_bit)).to_bytes(len_byte+1, 'big')
@ -1400,7 +1400,7 @@ def uint_le_to_bytes(val, bitlen=8):
elif len_byte == 1:
return bchr(val)
else:
if isinstance(val, _MPZ_T):
if _WITH_MPZ and isinstance(val, _MPZ_T):
return int(val).to_bytes(len_byte, 'little')
else:
return val.to_bytes(len_byte, 'little')