[Numpy-discussion] Scipy installation on Window with mingw32

Ralf Gommers

2016-10-18 09:07:04 UTC

Hi,

A few comments:
- you really really want to use a scientific Python distribution to avoid
these issues on Windows. see http://scipy.org/install.html
- we used to build scipy .exe installers with mingw32 but don't do that
anymore because it's just too much of a pain. IIRC the last release we did
that for was 0.16.0, with the toolchain in
https://github.com/numpy/numpy-vendor.
- I don't recognize the error; looks not specific to recent changes in
scipy so there's probably something in your environment not set up quite
right.

Cheers,
Ralf

On Tue, Oct 18, 2016 at 8:18 PM, Shreyank Amartya <

Post by 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
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
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
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.
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 Iâm stuck here.
Thanks
Shreyank
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