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On Fri, 17 Aug 2012 12:20:12 v_2e@×××.net wrote: |
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> Hello! |
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> |
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> On Fri, 17 Aug 2012 09:32:18 +1200 |
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> |
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> fbissey@××××××××××××.nz wrote: |
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> > OK wrong assumption from me by looking at the code. You have probably |
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> > enabled the gmp useflag in mpmath and now you have gmpy on your |
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> > system. I am now fairly |
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> > sure that gmpy is the cause of the problem. |
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> > Like sage gmpy can be autoloaded by mpmath but if both are present at |
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> > the same time you get the confusion that you have seen. |
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> |
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> Yes, the 'gmp' USE-flag is enabled for 'mpmath'. |
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> |
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> > As a quick check you can try: MPMATH_NOGMPY=1 emerge -1v sympy |
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> > that should work. Adding that variable to sage-env may help with |
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> > potential problems importing mpmath or sympy in sage but really |
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> > mpmath has to change their default behavior. |
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> |
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> So what do I have to do to have a working Sage? Do I have to rebuild |
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> 'mpmath' with the 'gmp' USE-flag disabled? |
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> |
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Best solution: rebuild mpmath without the gmp useflag and remove gmpy. |
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Rebuilding is not enough as the flag only insure that gmpy is installed. |
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mpmath autodetect gmpy's presence all by itself if it is present - gmp flag or |
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not. |
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|
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If you don't want to do that you'll have to export MPMATH_NOGMPY=1 |
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before using sage or emerging sympy or importing sympy or mpmath |
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from the python shell. |
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|
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Francois |
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