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<H1>[pycrypto] Install failure</H1>
<B>Mike Driscoll</B>
<A HREF="mailto:pycrypto%40lists.dlitz.net?Subject=%5Bpycrypto%5D%20Install%20failure&In-Reply-To=8129C8D99AA86D4A9A8BEA3E7DCC806A36B9AECC43%40exch-mail.bridge.net"
TITLE="[pycrypto] Install failure">mdriscoll at co.marshall.ia.us
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<I>Wed Oct 19 09:16:16 CST 2011</I>
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<PRE>On 10/19/2011 10:13 AM, Dean Macinskas wrote:
><i>
</I>><i> *From:*<A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">pycrypto-bounces at lists.dlitz.net</A>
</I>><i> [mailto:<A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">pycrypto-bounces at lists.dlitz.net</A>] *On Behalf Of *Andrew Cooper
</I>><i> *Sent:* Wednesday, October 19, 2011 11:05 AM
</I>><i> *To:* <A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">pycrypto at lists.dlitz.net</A>
</I>><i> *Subject:* Re: [pycrypto] Install failure
</I>><i>
</I>><i> On 19/10/2011 15:58, Dean Macinskas wrote:
</I>><i>
</I>><i> *From:*<A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">pycrypto-bounces at lists.dlitz.net</A>
</I>><i> <mailto:<A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">pycrypto-bounces at lists.dlitz.net</A>>
</I>><i> [mailto:<A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">pycrypto-bounces at lists.dlitz.net</A>] *On Behalf Of *Andrew Cooper
</I>><i> *Sent:* Wednesday, October 19, 2011 10:52 AM
</I>><i> *To:* PyCrypto discussion list
</I>><i> *Subject:* Re: [pycrypto] Install failure
</I>><i>
</I>><i> On 19/10/2011 15:46, Dean Macinskas wrote:
</I>><i>
</I>><i> Platform: W7pro, 64-bit
</I>><i>
</I>><i> I downloaded the latest version (2.3) and ran "python setup.py
</I>><i> install". Here's what I see:
</I>><i>
</I>><i> C:\Users\dmacinskas\AppData\Local\Temp\pycrypto\pycrypto-2.3>python
</I>><i> setup.py install
</I>><i>
</I>><i> running install
</I>><i>
</I>><i> running build
</I>><i>
</I>><i> running build_py
</I>><i>
</I>><i> running build_ext
</I>><i>
</I>><i> warning: GMP library not found; Not building Crypto.PublicKey._fastmath.
</I>><i>
</I>><i> building 'Crypto.Random.OSRNG.winrandom' extension
</I>><i>
</I>><i> error: Unable to find vcvarsall.bat
</I>><i>
</I>><i> C:\Users\dmacinskas\AppData\Local\Temp\pycrypto\pycrypto-2.3>
</I>><i>
</I>><i> This appears to defeat the install, because subsequently importing
</I>><i> Crypto.Cipher produces a "module not found" error.
</I>><i>
</I>><i> Any advice?
</I>><i>
</I>><i>
</I>><i> Do you have MSCV/MSVS installed? You need a C compiler for "python
</I>><i> setup.py install" to work.
</I>><i>
</I>><i> ~Andrew
</I>><i>
</I>><i> No, but I have Python installed on another system, also without
</I>><i> MSCV/MSVS installed, and I've imported lots of packages without
</I>><i> error. Is PyCrypto a special case in this regard?
</I>><i>
</I>><i>
</I>><i> Not overly special - it is certainly not the only python extension
</I>><i> written mainly in C. The majority of extensions however are just
</I>><i> python themselves, so don't require a C compiler.
</I>><i>
</I>><i> ~Andrew
</I>><i>
</I>><i> Besides, I'd expect that the install module would have the C stuff
</I>><i> already compiled, no?
</I>><i>
</I>><i> Perhaps I don't have the C runtime installed. Is there a specific one
</I>><i> required? I'm using Python 2.7.2.
</I>><i>
</I>><i> Thanks,
</I>><i>
</I>><i> dpm
</I>><i>
</I>><i>
</I>
Personally, I just use Michael Foord's PyCrypto Windows builds:
<A HREF="http://www.voidspace.org.uk/python/modules.shtml#pycrypto">http://www.voidspace.org.uk/python/modules.shtml#pycrypto</A>
Then I don't need a compiler.
- Mike
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