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So I'm trying to use Cython on ta-lib, and I'm using the wrapper provided by mrjbq7 (many thanks..). So I tried to install Cython-0.19.1 on my computer and then do python setup.py install on ta-lib-master (the wrapper), and I got the following: 

    running install
    running build
    running build_py
    running biuld_ext
    failed to import Cython: No module named 'Actions'
    error: Cython does not appear to be installed

I tried to build Cython with python setup.py build_ext --inplace

Can anyone please help me? Thanks a lot!

I'm using 32-bit Windows7 and python 3.3.1

Tengyu Liu
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1 Answers1

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I don't think your troubles have anything to do with the fact that you're installing the TA-lib wrapper, so here are a few suggestions :

  • First, retry to install Cython using Python 2.7.X (I suspect some incompatibilities between some Python versions and Cython versions : at least, the kind of errors you mentioned remind me something...).

If this doesn't help, rebuild Cython as follows :

  1. Install MinGW (with options gcc/g++) from here.

  2. Tell disutils to use gcc... Create file C:\Python27\Lib\distutils\distutils.cfg and write this inside :

    [build]
compiler = mingw32

  3. If needed, remove all instances of -mno-cygwin gcc option from file C:\Python27\Lib\distutils\cygwinccompiler.py :

    # self.set_executables(compiler='gcc -mno-cygwin -O -Wall',
                     # compiler_so='gcc -mno-cygwin -mdll -O -Wall',
                     # compiler_cxx='g++ -mno-cygwin -O -Wall',
                     # linker_exe='gcc -mno-cygwin',
                     # linker_so='%s -mno-cygwin %s %s'
                                # % (self.linker_dll, shared_option,
                                   # entry_point))
# becomes :

self.set_executables(compiler='gcc -O -Wall',
                     compiler_so='gcc -mdll -O -Wall',
                     compiler_cxx='g++ -O -Wall',
                     linker_exe='gcc',
                     linker_so='%s %s %s'
                                % (self.linker_dll, shared_option,
                                   entry_point))

# Just because `-mno-cygwin` has just been removed from early versions of gcc.

  4. Build and install Cython : $ python setup.py install

In any cases : Make sure to have the proper PATHs for Cython :

SET PYTHONPATH=%PYTHONPATH%;../../../DEPENDENCIES/Cython-0.19.1
SET PATH=%PATH%;../../../DEPENDENCIES/Cython-0.19.1/bin

Try rebuilt TA-lib and please tell me what it says ;-)

Gauthier Boaglio
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  • Thanks a lot. I tried rebuild Cython with NMake and it worked. But when I'm building ta-lib-master it gives me this error: `NameEooro: name 'unicode' is not defined` This is the full message: `File "C:\Cython-0.19.1\Cython\Compiler\Scanning.py", line 10, in cython.declare(EncodedString=object, string_prefixes=object, raw_prefixes=object, IDENT=unicode, NameError: name 'unicode' is not defined'` ___________________________________ And sorry I can't vote up your answer yet, I need 4 more rep to do this -_-" – Tengyu Liu Jun 08 '13 at 00:48