Can't install numpy with setup.py
Solution 1
The module depends on a working C build chain. It depends on your system how you install it, google will help in this case.
You can see it is looking for gcc:
sh: gcc-4.2: command not found
On Debian-based linux you would install that and the python headers with (edited per comment):
sudo apt-get install build-essential python-dev
Solution 2
I ran into the same bug and fixed it by updating pip.
pip install --upgrade pip
Hope that it helps.
Solution 3
Recently I had been seeing this along with:
clang: error: unknown argument: '-mno-fused-madd' [-Wunused-command-line-argument-hard-error-in-future]
See here to fix:
clang error: unknown argument: '-mno-fused-madd' (python package installation failure)
Solution 4
You need to install gcc
.
On CentOS:
sudo yum install gcc
Try reinstall numpy
, if you see the following error:
Command python setup.py egg_info failed with error code 1 in /tmp/pip-build-root/numpy
Run:
sudo yum install python-devel
Mika Schiller
Updated on June 13, 2022Comments
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Mika Schiller almost 2 years
I'm on Python 2.7 and I'm trying to use the NLTK part of speech tagger, which generates this error because I don't have numpy installed:
> Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Library/Python/2.7/site-packages/nltk/tag/__init__.py", line 99, in pos_tag tagger = load(_POS_TAGGER) File "/Library/Python/2.7/site-packages/nltk/data.py", line 605, in load resource_val = pickle.load(_open(resource_url)) ImportError: No module named numpy.core.multiarray
So I download numpy 1.7.0 from here, did a cd into my downloads folder and did python setup.py install and got this error:
Running from numpy source directory. non-existing path in 'numpy/distutils': 'site.cfg' F2PY Version 2 blas_opt_info: FOUND: extra_link_args = ['-Wl,-framework', '-Wl,Accelerate'] define_macros = [('NO_ATLAS_INFO', 3)] extra_compile_args = ['-msse3', '-I/System/Library/Frameworks/vecLib.framework/Headers'] lapack_opt_info: FOUND: extra_link_args = ['-Wl,-framework', '-Wl,Accelerate'] define_macros = [('NO_ATLAS_INFO', 3)] extra_compile_args = ['-msse3'] running install running build running config_cc unifing config_cc, config, build_clib, build_ext, build commands --compiler options running config_fc unifing config_fc, config, build_clib, build_ext, build commands --fcompiler options running build_src build_src building py_modules sources creating build creating build/src.macosx-10.6-intel-2.7 creating build/src.macosx-10.6-intel-2.7/numpy creating build/src.macosx-10.6-intel-2.7/numpy/distutils building library "npymath" sources customize Gnu95FCompiler Could not locate executable gfortran Could not locate executable f95 customize NAGFCompiler customize AbsoftFCompiler Could not locate executable f90 Could not locate executable f77 customize IBMFCompiler Could not locate executable xlf90 Could not locate executable xlf customize IntelFCompiler Could not locate executable ifort Could not locate executable ifc customize GnuFCompiler Could not locate executable g77 customize G95FCompiler Could not locate executable g95 customize PGroupFCompiler Could not locate executable pgfortran don't know how to compile Fortran code on platform 'posix' C compiler: gcc-4.2 -fno-strict-aliasing -fno-common -dynamic -arch i386 -arch x86_64 -g -O2 -DNDEBUG -g -O3 compile options: '-Inumpy/core/src/private -Inumpy/core/src -Inumpy/core -Inumpy/core/src/npymath -Inumpy/core/src/multiarray -Inumpy/core/src/umath -Inumpy/core/src/npysort -Inumpy/core/include -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c' gcc-4.2: _configtest.c sh: gcc-4.2: command not found sh: gcc-4.2: command not found failure. removing: _configtest.c _configtest.o Traceback (most recent call last): File "setup.py", line 214, in <module> setup_package() File "setup.py", line 207, in setup_package configuration=configuration ) File "/Users/mikaschiller/Downloads/numpy-1.7.0/numpy/distutils/core.py", line 186, in setup return old_setup(**new_attr) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/core.py", line 152, in setup dist.run_commands() File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 953, in run_commands self.run_command(cmd) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 972, in run_command cmd_obj.run() File "/Users/mikaschiller/Downloads/numpy-1.7.0/numpy/distutils/command/install.py", line 55, in run r = old_install.run(self) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/command/install.py", line 563, in run self.run_command('build') File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/cmd.py", line 326, in run_command self.distribution.run_command(command) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 972, in run_command cmd_obj.run() File "/Users/mikaschiller/Downloads/numpy-1.7.0/numpy/distutils/command/build.py", line 37, in run old_build.run(self) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/command/build.py", line 127, in run self.run_command(cmd_name) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/cmd.py", line 326, in run_command self.distribution.run_command(command) File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 972, in run_command cmd_obj.run() File "/Users/mikaschiller/Downloads/numpy-1.7.0/numpy/distutils/command/build_src.py", line 152, in run self.build_sources() File "/Users/mikaschiller/Downloads/numpy-1.7.0/numpy/distutils/command/build_src.py", line 163, in build_sources self.build_library_sources(*libname_info) File "/Users/mikaschiller/Downloads/numpy-1.7.0/numpy/distutils/command/build_src.py", line 298, in build_library_sources sources = self.generate_sources(sources, (lib_name, build_info)) File "/Users/mikaschiller/Downloads/numpy-1.7.0/numpy/distutils/command/build_src.py", line 385, in generate_sources source = func(extension, build_dir) File "numpy/core/setup.py", line 648, in get_mathlib_info raise RuntimeError("Broken toolchain: cannot link a simple C program") RuntimeError: Broken toolchain: cannot link a simple C program
I then tried to install it with sudo pip install -U numpy and got the same "cannot link a simple C program" error. I can't figure out what's going on here. Is the numpy version incompatible with python 2.7 or perhaps NLTK?
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Cairnarvon almost 11 yearsDon't forget you'll also need the
python-dev
package on those systems. -
Mika Schiller almost 11 yearsI'm on Mac Lion 10.7.5 with Xcode 4.6 and just installed command line tools. I did gcc -v in command line to see if gcc is installed and it returned(shortened): Using built-in specs. Target: i686-apple-darwin11....Thread model: posix gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00). So gcc is apparently installed. I tried setup.py install again on numpy and got the same "Broken toolchain..." error. Is this not the right version of gcc for lion?
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globin almost 11 yearstry this from scipy.org/Installing_SciPy/…
export CC=gcc; export CXX=g++; export FFLAGS=ff2c
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wolfgang almost 7 yearsyou need to be wayyy up!