Python Pip install Error Unable to find vcvarsall bat Tried all solutions

Question

I tried to install Scrapy for Python 2 7 8  anaconda 2 1 0  32-bit using   pip install scrapy   And I got this error    error  Microsoft Visual C   10 0 is required  Unable to find vcvarsall bat     I have followed the solutions found in these stackover flow questions  Nothing worked    Microsoft Visual C   Compiler for Python 2 7  Can  39 t find vcvarsall bat file  error  Unable to find vcvarsall bat  Getting  quot error  Unable to find vcvarsall bat quot  when running  quot pip install numpy quot  on windows7 64bit  pip install gives error  Unable to find vcvarsall bat  How do I point easy install to vcvarsall bat   pip install MySQL-python returns unable to find vcvarsall bat  This is the error  and a few lines above and below it   copying src lxml isoschematron resources xsl iso-schematron-xslt1 readme txt - gt  build lib win32-3 4 lxml isoschematron resources xsl iso-schematron-xslt1  running build ext  building  lxml etree  extension  C  Python34 lib distutils dist py 260  UserWarning  Unknown distribution opt ion   bugtrack url     warnings warn msg   error  Microsoft Visual C   10 0 is required  Unable to find vcvarsall bat     ---------------------------------------- Command  C  Python34 python exe -c  import setuptools  tokenize   file    C    Users  San  AppData  Local  Temp  pip-build-wp6ei6r9  lxml  setup py  exec com pile getattr tokenize   open   open    file    read   replace   r n     n      f ile     exec     install --record C  Users San AppData Local Temp pip-kfkzr 67-r ecord install-record txt --single-version-externally-managed --compile  failed w ith error code 1 in C  Users San AppData Local Temp pip-build-wp6ei6r9 lxml     I have both Microsoft Visual Studio 12 0  and Microsoft visual C   compiler package for Python 2 7  both of which have the vcvarsall bat file      I have a system variable that is called  VS120COMNTOOLS  and is its path is set to   C  Program Files Microsoft Visual Studio 12 0 Common7 Tools      I also added both paths to my environment variables  I ve also tried just adding one  and then the other  My Path looks like this  C  Program Files Java jdk1 7 0 25 bin  Python27  Python2 python exe C  Python27 Scripts  C  Users San AppData Local Programs Common Microsoft Visual C   for Python 9 0  C  Program Files Microsoft Visual Studio 12 0 VC       I also updated by my setup tools  I think to version 8   which should autodetect Microsoft Visual C   Compiler for Python 2 7  However  I m still getting the same error      I have also tried using   easy install scrapy   And I get this error  error  Setup script exited with error  Microsoft Visual C   10 0 is required  Un   able to find vcvarsall bat      I also have the following in my registry  HKEY LOCAL MACHINE Software Microsoft VisualStudio 9 0 Setup VC ProductDir HKEY LOCAL MACHINE Software Microsoft VisualStudio 12 0 Setup VC ProductDir

User · Answer

Here too I can reproduce this problem with scrapy and psycopg2 (both require C++ compiling), even though I have Microsoft Visual C++ Compiler for Python 2.7 installed.

It has to be noted that I use virtualenv. From your post I'm not sure whether you do the same.

Anyway I tried to skip the activation of the virtual environment. Then both scrapy and psycopg2 installed fine.

My hypothesis: there is a conflict between this 2014 C++ compiler for Python and virtualenv. I do not know why nor how to solve it (and I'd be glad if someone can suggest a workaround).

User · Answer

Try installing this  it s a known workaround for enabling the C   compiler for Python 2 7    In my experience  when pip does not find vcvarsall bat compiler  all I do is opening a Visual Studio console as it set the path variables to call vcvarsall bat directly and then I run pip on this command line

User · Answer

I have tried all suggestions and found my own simple solution   The problem is that codes written in external environment like C need compiler  Look for its own VS environment  i e  VS 2008   Currently my machine runs VS 2012 and faces Unable to find vcvarsall bat  I studied codes that i want to install to find the VS version  It was VS 2008  i have add to system variable VS90COMNTOOLS as variable name and gave the value of VS120COMNTOOLS   You can find my step by step solution below    Right click on My Computer  Click Properties  Advanced system settings Environment variables Add New system variable Enter VS90COMNTOOLS to the variable name Enter the value of current version to the new variable  Close all windows   Now open a new session and pip install your-package

User · Answer

I was getting the same error in python 3 4 3 too and I tried using the solutions mentioned here and elsewhere with no success   Microsoft makes a compiler available for Python 2 7 but it didn t do me much good since I am on 3 4 3    Python since 3 3 has transitioned over to 2010 and you can download and install Visual C   2010 Express for free here  https   www visualstudio com downloads download-visual-studio-vs d-2010-express  Here is the official blog post talking about the transition to 2010 for 3 3  http   blog python org 2012 05 recent-windows-changes-in-python-33 html  Because previous versions gave a different error for vcvarsall bat I would double check the version you are using with  pip -V   C  Users B gt pip -V pip 6 0 8 from C  Python34 lib site-packages  python 3 4    As a side note  I too tried using the latest version of VC    2013  first but it required installing 2010 express    From that point forward it should work for anyone using the 32 bit version  if you are on the 64 bit version you will then get the ValueError    path   message because VC   2010 doesn t have a 64 bit compuler  For that you have to get the  Microsoft SDK 7 1  I can t hyperlink the instruction for 64 bit because I am limited to 2 links per post but its at  Python PIP has issues with path for MS Visual Studio 2010 Express for 64-bit install on Windows 7

User · Answer

After doing a lot of things  I upgraded pip  setuptools and virtualenv    python -m pip install -U pip pip install -U setuptools       pip install -U virtualenv   I did steps 1  2 in my virtual environment as well as globally  Next  I installed the package through pip and it worked

[python] Python Pip install Error: Unable to find vcvarsall.bat. Tried all solutions

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