我正在尝试使用以下代码：
from matplotlib import pyplot as plt
from sklearn.datasets import load_iris
import numpy as np
我收到此错误：
ImportError: No module named sklearn.datasets
然后我尝试安装scikit-learn，但收到以下错误：
pip install -U scikit-learn
File "<ipython-input-9-6d283b29f0f9>", line 1
pip install -U scikit-learn
^
SyntaxError: invalid syntax
easy_install -U scikit-learn
File "<ipython-input-10-59440c1e5ef6>", line 1
easy_install -U scikit-learn
^
SyntaxError: invalid syntax
我正在使用 Enthought Canopy Expresss，我认为“Enthought Python 发行版已经发布了最新版本”。根据http://scikit-learn.org/stable/install.html#enthought-python-distribution
我该如何使用scikit-learn？
编辑：
pip通过安装后，easy_install pip我尝试运行pip install -U scikit-learn并收到这些错误（来自我的日志文件）：
running build_clib
No module named msvccompiler in numpy.distutils; trying from distutils
customize MSVCCompiler
Missing compiler_cxx fix for MSVCCompiler
customize MSVCCompiler using build_clib
building 'libsvm-skl' library
compiling C sources
Partial import of sklearn during the build process.
C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\lib\site-packages\numpy\distutils\system_info.py:564: UserWarning: Specified path C:\Users\vagrant\src\master-env\libs is invalid.
warnings.warn('Specified path %s is invalid.' % d)
C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\lib\site-packages\numpy\distutils\system_info.py:564: UserWarning: Specified path C:\Users\vagrant\src\master-env\include is invalid.
warnings.warn('Specified path %s is invalid.' % d)
C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\lib\site-packages\numpy\distutils\system_info.py:1494: UserWarning:
Atlas (http://math-atlas.sourceforge.net/) libraries not found.
Directories to search for the libraries can be specified in the
numpy/distutils/site.cfg file (section [atlas]) or by setting
the ATLAS environment variable.
warnings.warn(AtlasNotFoundError.__doc__)
C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\lib\site-packages\numpy\distutils\system_info.py:1503: UserWarning:
Blas (http://www.netlib.org/blas/) libraries not found.
Directories to search for the libraries can be specified in the
numpy/distutils/site.cfg file (section [blas]) or by setting
the BLAS environment variable.
warnings.warn(BlasNotFoundError.__doc__)
C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\lib\site-packages\numpy\distutils\system_info.py:1506: UserWarning:
Blas (http://www.netlib.org/blas/) sources not found.
Directories to search for the sources can be specified in the
numpy/distutils/site.cfg file (section [blas_src]) or by setting
the BLAS_SRC environment variable.
warnings.warn(BlasSrcNotFoundError.__doc__)
sklearn\svm\setup.py:58: UserWarning:
Blas (http://www.netlib.org/blas/) libraries not found.
Directories to search for the libraries can be specified in the
numpy/distutils/site.cfg file (section [blas]) or by setting
the BLAS environment variable.
warnings.warn(BlasNotFoundError.__doc__)
sklearn\setup.py:77: UserWarning:
Blas (http://www.netlib.org/blas/) libraries not found.
Directories to search for the libraries can be specified in the
numpy/distutils/site.cfg file (section [blas]) or by setting
the BLAS environment variable.
warnings.warn(BlasNotFoundError.__doc__)
error: Unable to find vcvarsall.bat
----------------------------------------
Cleaning up...
Removing temporary dir c:\users\cle1394\appdata\local\temp\pip_build_cle1394...
Command C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\Scripts\python.exe -c "import setuptools;__file__='c:\\users\\cle1394\\appdata\\local\\temp\\pip_build_cle1394\\scikit-learn\\setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record c:\users\cle1394\appdata\local\temp\pip-1ysfly-record\install-record.txt --single-version-externally-managed failed with error code 1 in c:\users\cle1394\appdata\local\temp\pip_build_cle1394\scikit-learn
Exception information:
Traceback (most recent call last):
File "C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\lib\site-packages\pip-1.4.1-py2.7.egg\pip\basecommand.py", line 134, in main
status = self.run(options, args)
File "C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\lib\site-packages\pip-1.4.1-py2.7.egg\pip\commands\install.py", line 241, in run
requirement_set.install(install_options, global_options, root=options.root_path)
File "C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\lib\site-packages\pip-1.4.1-py2.7.egg\pip\req.py", line 1298, in install
requirement.install(install_options, global_options, *args, **kwargs)
File "C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\lib\site-packages\pip-1.4.1-py2.7.egg\pip\req.py", line 625, in install
cwd=self.source_dir, filter_stdout=self._filter_install, show_stdout=False)
File "C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\lib\site-packages\pip-1.4.1-py2.7.egg\pip\util.py", line 670, in call_subprocess
% (command_desc, proc.returncode, cwd))
InstallationError: Command C:\Users\cle1394\AppData\Local\Enthought\Canopy\User\Scripts\python.exe -c "import setuptools;__file__='c:\\users\\cle1394\\appdata\\local\\temp\\pip_build_cle1394\\scikit-learn\\setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record c:\users\cle1394\appdata\local\temp\pip-1ysfly-record\install-record.txt --single-version-externally-managed failed with error code 1 in c:\users\cle1394\appdata\local\temp\pip_build_cle1394\scikit-learn