Scipy installation failed with error code 1

Question

I'm trying to install Scipy through pip. when doing

pip install scipy

I get the error

 failed with error code 1 in C:\Users\MYNAME\AppData\Local\Temp\pip-build-c3n82mii\Scipy\

I got pip updated to newest version (8.1.2) and python 3.5.2. any help?

FULL ERROR:

 Command
 "c:\users\MYNAME\appdata\local\programs\python\python35-32\python.exe
 -u -c "import setuptools, tokenize;__file__='C:\\Users\\MAYNA~1\\AppData\\Local\\Temp\\pip-build-c3n82mii\\Scipy\\se‌tup.py';exec(compile(getattr(tokenize,
 'open', open)(file).read().replace('\r\n', '\n'), file, 'exec'))"
 install --record
 C:\Users\IDANRA~1\AppData\Local\Temp\pip-76_6hqtw-record\install-record.txt
 --single-version-externally-managed --compile" failed with error code 1 in                    
 C:\Users\MYNA~1\AppData\Local\Temp\pip-build-c3n82mii\Scipy\

Can you please post the full traceback? AFAIK every failed installation attempt prints such a line. — linusg
– linusg, Commented Jul 19, 2016 at 13:49
Command "c:\users\MYNAME\appdata\local\programs\python\python35-32\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\MAYNA~1\\AppData\\Local\\Temp\\pip-build-c3n82mii\\Scipy\\setup.py';exec(compile(getattr(tokenize, 'open', open)(file).read().replace('\r\n', '\n'), file, 'exec'))" install --record C:\Users\IDANRA~1\AppData\Local\Temp\pip-76_6hqtw-record\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in C:\Users\MYNA~1\AppData\Local\Temp\pip-build-c3n82mii\Scipy\ — idik
– idik, Commented Jul 19, 2016 at 13:51
Please include that in your question using the code formatter, nobody can read that in a comment :( — linusg
– linusg, Commented Jul 19, 2016 at 13:53
Thanks, but not very useful at all. Thoutput does not say much about the error :( — linusg
– linusg, Commented Jul 19, 2016 at 13:57
@idik check out this blog, it's for installing 3.23, you'll need VS 2013(they say 2012 in the blog) taywils.me/2012/12/23/pythonfinance1.html and numpy 1.11 and the latest scipy — Rachel Gallen
– Rachel Gallen, Commented Aug 1, 2016 at 14:00

Steve Barnes · Accepted Answer · 2016-07-20 05:56:40Z

1

The most likely problem is the lack of the appropriate compiler(s) on your machine and its paths - scipy uses a lot of C code for speed and pip will by default, if there isn't a wheel available for SciPy that matches your combination of python and OS, download the source and try to build it.

I have had a look at the latest release of SciPy on pipy and it is 0.18.0rc2 which doesn't have a Windows build as a wheel.

You have 2 choices:

Install the appropriate compilers for your version of python and OS
Go to Chris Gohlke's excellent unofficial windows binaries page here and download the installer for your version of python.

answered Jul 20, 2016 at 5:56

Steve Barnes

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