[pycrypto] chmod error in Windows 7, when trying to install

[Philip Horger]

As I understand it, compiling and setting PyCrypto up from source on Windows
requires MinGW. It might also support Cygwin. But some sort of UNIX-y layer to
work with as common ground.

On Wed, Sep 5, 2012 at 4:21 PM, Andrew Cooper <andyhhp at gmail.com> wrote:
>
> On 05/09/2012 17:48, Mike Anderson wrote:
>> I'm using Windows 7 Ultimate, and trying to install pycrypto, but
>> getting an error "'chmod' is not recognized as an internal or external
>> command."
>>
>> It happens like so:
>>> pip install ssh
>>    ...
>> copying lib\Crypto\Signature\__init__.py -> build\lib.win32-2.7\Crypto\Signature
>>
>>
>> running build_ext
>>
>> running build_configure
>>
>> 'chmod' is not recognized as an internal or external command,
>>
>> operable program or batch file.
>>
>> Traceback (most recent call last):
>>
>>   File "<string>", line 1, in <module>
>>
>>   File "C:\Users\killer\build\pycrypto\setup.py", line 456, in <module>
>>
>>     core.setup(**kw)
>>
>>   File "C:\Python27\lib\distutils\core.py", line 152, in setup
>>
>>     dist.run_commands()
>>
>>   File "C:\Python27\lib\distutils\dist.py", line 953, in run_commands
>>
>>     self.run_command(cmd)
>>
>>   File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
>>
>>     cmd_obj.run()
>>
>>   File "C:\Python27\lib\site-packages\setuptools\command\install.py", line 53, i
>> n run
>>
>>     return _install.run(self)
>>
>>   File "C:\Python27\lib\distutils\command\install.py", line 563, in run
>>
>>     self.run_command('build')
>>
>>   File "C:\Python27\lib\distutils\cmd.py", line 326, in run_command
>>
>>     self.distribution.run_command(command)
>>
>>   File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
>>
>>     cmd_obj.run()
>>
>>   File "C:\Python27\lib\distutils\command\build.py", line 127, in run
>>
>>     self.run_command(cmd_name)
>>
>>   File "C:\Python27\lib\distutils\cmd.py", line 326, in run_command
>>
>>     self.distribution.run_command(command)
>>
>>   File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
>>
>>     cmd_obj.run()
>>
>>   File "C:\Users\killer\build\pycrypto\setup.py", line 251, in run
>>
>>     self.run_command(cmd_name)
>>
>>   File "C:\Python27\lib\distutils\cmd.py", line 326, in run_command
>>
>>     self.distribution.run_command(command)
>>
>>   File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
>>
>>     cmd_obj.run()
>>
>>   File "C:\Users\killer\build\pycrypto\setup.py", line 273, in run
>>
>>     raise RuntimeError("chmod error")
>>
>> RuntimeError: chmod error
>
> This is because you are on windows and setup.py is trying to run unix
> commands.
>
> To a cursory glance, it appears to be a bug in pycrypto's setup.py  It
> should either provide a windows compatible way of performing autoconf
> and friends (unlikely), or provide a windows alternative way of
> configuring stuff and conditionally invoke the correct one for the system.
>
> ~Andrew
>
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>
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