ImportError No module named site on Windows

Question

I am trying to install Python for the first time  I downloaded the following installer from the Python website  Python 2 7 1 Windows Installer  Windows binary -- does not include source   I then ran the installer  selected  All Users  and all was fine  I installed Python into the default location   C  Python27   Next  to test that Python was installed correctly  I navigated to my Python Directory  and ran the  python  command in the windows cmd prompt  It returns me the following error      ImportError  No module named site   When I do  python -v  I get the following       installing zipimport hook   import zipimport   builtin    installed zipimport hook    ImportError  No module named site    clear builtin      clear sys path    clear sys argv    clear sys ps1    clear sys ps2    clear sys exitfunc    clear sys exc type    clear sys exc value    clear sys exc traceback    clear sys last type    clear sys last value    clear sys last traceback    clear sys path hooks    clear sys path importer cache    clear sys meta path    clear sys flags    clear sys float info    restore sys stdin    restore sys stdout    restore sys stderr    cleanup main    cleanup 1  zipimport    cleanup 1  signal    cleanup 1  exceptions    cleanup 1   warnings    cleanup sys    cleanup builtin    cleanup ints  6 unfreed ints    cleanup floats     When I do dir C  Python27 Lib site py  I get the following      C  Users Mimminito dir C  Python27 Lib site py    Volume in drive C has no label    Volume Serial Number is DAB9-A863        Directory of C  Python27 Lib        13 11 2010  20 08            20 389  site py                  1 File s          20 389 bytes                  0 Dir s      694 910 976 bytes free     Any ideas

User · Answer

For Windows 10  follow up on  slckin answer   this can be set through the command line with   setx PYTHONHOME  C  Python27  setx PYTHONPATH  C  Python27 Lib  setx PATH   PYTHONHOME   PATH

User · Answer

Locate site py and add its path in PYTHONPATH  This will solve your problem

User · Answer

Are you trying to run Windows Python from Cygwin  I m having the same problem  Python in Cygwin fails to import site  Python in Cmd works   It looks like you need to make sure you run PYTHONHOME and PYTHONPATH through cygwin -aw to make them Windows paths  Also  python seems to be using some incorrect paths   I think I ll need to install python through cygwin to get it working

User · Answer

First uninstall python and again install the latest version during installation use custom install and mark all user checkbox and set the installation path C  Python 3 9 and make PYTHON HOME value C  Python 3 9 in the Environmental variable it works for me

User · Answer

Install yaml from the PyYAML home pagee  http   www pyyaml org wiki PyYAML  Select the appropriate version for your OS and Python

User · Answer

For me it happened because I had 2 versions of python installed - python 27 and python 3 3  Both these folder had path variable set  and hence there was this issue  To fix  this  I moved python27 to temp folder  as I was ok with python 3 3  So do check environment variables like PATH PYTHONHOME as it may be a issue  Thanks

User · Answer

I went through the same issue of ImportError  No module named site while installing python 2 7 11  Initially I had Python2 5 and the PYTHONHOME path was set to Python2 5  I renamed it to C  Python27  and it resolved the problem

User · Answer

In my case  the issue was another site py file  that was resolved earlier than the one from Python Lib  due to PATH setting   Environment  Windows 10 Pro  Python27   My desktop has pgAdmin installed  which has file C  Program Files  x86  pgAdmin venv Lib site py  Because PATH environment variable had pdAdmin s home earlier than Python  apparently a bad idea in the first place   pgAdmin s site py was found first   All I had to do to fix the issue was to move pgAdmin s home later than Python  in PATH

User · Answer

I up voted slckin s answer   My problem was that I was thoughtful and added double quotes around the paths   I removed the double quotes in all of the three variables  PYTHONHOME  PYTHONPATH  and PATH  Note that this was in a cmd or bat file to setup the environment for other tools   However  the double quotes may be useful in an icon setting   Typing      set   revealed that the quotes where in the path and not dropped as expected   I also shorted the PATH so that it was less than 256 characters long

User · Answer

I had the same problem  My solution was to repair the Python installation   It was a new installation so I did not expect a problem but now it is solved    To repair  Windows 7     go to Control Panel -  Programs -  Programs and Features click on the Python version installed and then press Uninstall Change  follow the instructions to repair the installation

User · Answer

Make sure your PYTHONHOME environment variable is set correctly  You will receive this error if PYTHONHOME is pointing to invalid location or to another Python installation you are trying to run   Try this   C   gt set PYTHONHOME C  Python27 C   gt python   Use  setx PYTHONHOME C  Python27   to set this permanently for subsequent command prompts

User · Answer

You may try the Open Source Active Python Setup which is a well done Python installer for Windows  You just have to desinstall your version and install it

User · Answer

Quick solution  set PYTHONHOME and PYTHONPATH and include PYTHONHOME on PATH  For example if you installed to c  Python27  set PYTHONHOME c  Python27 set PYTHONPATH c  Python27 Lib set PATH  PYTHONHOME   PATH    Make sure you don t have a trailing     on the PYTHON  vars  this seems to break it aswel

User · Answer

I ve been looking into this problem for myself for almost a day and finally had a breakthrough  Try this   Setting the PYTHONPATH   PYTHONHOME variables Right click the Computer icon in the start menu  go to properties  On the left tab  go to Advanced system settings  In the window that comes up  go to the Advanced tab  then at the bottom click Environment Variables  Click in the list of user variables and start typing Python  and repeat for System variables  just to make certain that you don t have mis-set variables for PYTHONPATH or PYTHONHOME  Next  add new variables  I did in System rather than User  although it may work for User too   PYTHONPATH  set to C  Python27 Lib  PYTHONHOME  set to C  Python27    Hope this helps

User · Answer

I was having this issue after installing both Windows Python and Cygwin Python  and trying to run Cygwin Python from Cygwin  I solved it by exporting PYTHONHOME  usr  and PYTHONPATH  usr lib python2 7

User · Answer

I have an application which relies heavily on Python and have kept up-to-date with python 2 7 x as new versions are released  Everthing has been fine until 2 7 11 when I got the same  No module named site  error  I ve set PYTHONHOME to c  Python27 and it s working  But the mystery remains why this is now needed when it wasn t with previous releases  And  if it is needed  why doesn t the installer set this var

User · Answer

If somebody will find that it s still not working under non-admin users   Example error   ImportError  No module named iso8601   you need to set  --always-unzip  option for easy install    easy install --always-unzip python-keystoneclient   It will unzip your egg files and will allow import to find em

[python] ImportError: No module named site on Windows

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