Python version 2 7 required which was not found in the registry error when attempting to install netCDF4 on Windows 8

Question

I use Anaconda 1 7  32 bit  I downloaded the correct version of the netCDF4 installer from here   I attempted to copy the HKEY LOCAL MACHINE SOFTWARE Python folder into HKEY LOCAL MACHINE SOFTWARE Wow6432Node  No luck   Does anyone have any idea why this might be happening  Anaconda installed in the default location  C     Yes  I know Anaconda has netCDF4 in the packages list - but if you look closely  it s only offered for Mac and Linux

User · Answer

I think it really depends on why this error is given. It may be the bitness issue, but it may also be because of a deinstaller bug that leaves registry entries behind.

I just had this case because I need two versions of Python on my system. When I tried to install SCons (using Python2), the .msi installer failed, saying it only found Python3 in the registry. So I uninstalled it, with the result that no Python was found at all. Frustrating! (workaround: install SCons with pip install --egg --upgrade scons)

Anyway, I'm sure there are threads on that phenomenon. I just thought it would fit here because this was one of my top search results.

User · Answer

Check for the 32 64 bit you trying to install  both python interpreter and your app which trying to use python might be of different bit

User · Answer

This error can occur if you are installing a package with a different bitness than your Python version   To see whether your Python installation is 32- or 64-bit  see here    Some superpacks  e g  for Scipy  available on SourceForge or python org are for 32-bit systems and some are for 64-bit systems  See this answer  In Windows  uninstalling the 32-bit and installing the 64-bit version  or vice versa if your installation is 32-bit  can solve the problem

User · Answer

I had the same issue when using an  exe to install a Python package  because I use Anaconda and it didn t add Python to the registry   I fixed the problem by running this script       script to register Python 2 0 or later for use with    Python extensions that require Python registry settings     written by Joakim Loew for Secret Labs AB   PythonWare     source    http   www pythonware com products works articles regpy20 htm     modified by Valentine Gogichashvili as described in http   www mail-archive com distutils-sig python org msg10512 html  import sys  from  winreg import      tweak as necessary version   sys version  3  installpath   sys prefix  regpath    SOFTWARE  Python  Pythoncore   s       version  installkey    InstallPath  pythonkey    PythonPath  pythonpath     s  s  Lib    s  DLLs            installpath  installpath  installpath    def RegisterPy        try          reg   OpenKey HKEY CURRENT USER  regpath      except EnvironmentError as e          try              reg   CreateKey HKEY CURRENT USER  regpath              SetValue reg  installkey  REG SZ  installpath              SetValue reg  pythonkey  REG SZ  pythonpath              CloseKey reg          except              print      Unable to register               return         print  --- Python   version   is now registered           return     if  QueryValue reg  installkey     installpath and         QueryValue reg  pythonkey     pythonpath           CloseKey reg          print      Python   version   is already registered           return     CloseKey reg      print      Unable to register       print      You probably have another Python installation    if   name         main         RegisterPy

User · Answer

I had such problem  Solution was simple      Install python 2 7 64bit version   Export HKEY LOCAL MACHINE SOFTWARE Python  Remove Python 2 7   insert exported reg file   rename all C  Python27 to C  Anaconda   insert your path       P S  Sorry  for bad grammar

User · Answer

Just download Python 2 7 6 Windows Installer from the official Python download page  and launch the install package

User · Answer

Try the steps described here  http   avaminzhang wordpress com 2011 11 24 python-version-2-7-required-which-was-not-found-in-the-registry

[python] "Python version 2.7 required, which was not found in the registry" error when attempting to install netCDF4 on Windows 8

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