[Numpy-discussion] Scipy installation on Window with mingw32

[Shreyank Amartya]

Hi,

I am trying install to theano which also requires numpy and scipy on windows 7 with mingw32 compilers.
I have successfully installed numpy using mingw32 but however when trying to install scipy I get this error:

    Looking for python27.dll
    Building msvcr library: "c:\python27\libs\libmsvcr90.a" (from C:\Windows\win
sxs\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_750b37ff97f4f68b\
msvcr90.dll)
    objdump.exe: C:\Windows\winsxs\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0
.21022.8_none_750b37ff97f4f68b\msvcr90.dll: File format not recognized
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "c:\users\22193\appdata\local\temp\pip-build-d3f_pb\scipy\setup.py",
line 415, in <module>
        setup_package()
      File "c:\users\22193\appdata\local\temp\pip-build-d3f_pb\scipy\setup.py",
line 411, in setup_package
        setup(**metadata)
      File "c:\python27\lib\site-packages\numpy\distutils\core.py", line 169, in
setup
        return old_setup(**new_attr)
      File "c:\python27\lib\distutils\core.py", line 151, 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\numpy\distutils\command\install.py", l
ine 62, in run
        r = self.setuptools_run()
      File "c:\python27\lib\site-packages\numpy\distutils\command\install.py", l
ine 36, in setuptools_run
        return distutils_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\site-packages\numpy\distutils\command\build.py", lin
e 47, in run
        old_build.run(self)
      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:\python27\lib\site-packages\numpy\distutils\command\build_src.py",
line 147, in run
        self.build_sources()
      File "c:\python27\lib\site-packages\numpy\distutils\command\build_src.py",
line 164, in build_sources
        self.build_extension_sources(ext)
      File "c:\python27\lib\site-packages\numpy\distutils\command\build_src.py",
line 323, in build_extension_sources
        sources = self.generate_sources(sources, ext)
      File "c:\python27\lib\site-packages\numpy\distutils\command\build_src.py",
line 376, in generate_sources
        source = func(extension, build_dir)
      File "scipy\spatial\setup.py", line 35, in get_qhull_misc_config
        if config_cmd.check_func('open_memstream', decl=True, call=True):
      File "c:\python27\lib\site-packages\numpy\distutils\command\config.py", li
ne 312, in check_func
        self._check_compiler()
      File "c:\python27\lib\site-packages\numpy\distutils\command\config.py", li
ne 39, in _check_compiler
        old_config._check_compiler(self)
      File "c:\python27\lib\distutils\command\config.py", line 102, in _check_co
mpiler
        dry_run=self.dry_run, force=1)
      File "c:\python27\lib\site-packages\numpy\distutils\ccompiler.py", line 59
6, in new_compiler
        compiler = klass(None, dry_run, force)
      File "c:\python27\lib\site-packages\numpy\distutils\mingw32ccompiler.py",
line 96, in __init__
        msvcr_success = build_msvcr_library()
      File "c:\python27\lib\site-packages\numpy\distutils\mingw32ccompiler.py",
line 360, in build_msvcr_library
        generate_def(dll_file, def_file)
      File "c:\python27\lib\site-packages\numpy\distutils\mingw32ccompiler.py",
line 274, in generate_def
        raise ValueError("Symbol table not found")
    ValueError: Symbol table not found

    ----------------------------------------
Command "c:\python27\python.exe -u -c "import setuptools, tokenize;__file__='c:\
\users\\22193\\appdata\\local\\temp\\pip-build-d3f_pb\\scipy\\setup.py';exec(com
pile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __f
ile__, 'exec'))" install --record c:\users\22193\appdata\local\temp\pip-wxyrfu-r
ecord\install-record.txt --single-version-externally-managed --compile" failed w
ith error code 1 in c:\users\22193\appdata\local\temp\pip-build-d3f_pb\scipy\

C:\Python27\Scripts>

I realize this is due to some problem with resolving symbols in python27.dll. Is there a workaround for this?
I need this to work on this setup as this is my workstation at office and I cannot install Ubuntu which would have been way easier.

Things I have tried:
I used to get an error while installing scipy for lapack/blas resources not found, I was able to get through by downloading and compiling them from source.
I have tried to install scipy from http://www.lfd.uci.edu/~gohlke/pythonlibs/ and it does install scipy successfully but I get a 64-bit compatibility error when I try to import theano.
Please help as I'm stuck here.

Thanks
Shreyank
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