-------------------------------------------- On Sun, 11/24/13, MRAB <pyt...@mrabarnett.plus.com> wrote:
Subject: Re: cx_Oracle throws: ImportError: DLL load failed: This application has failed to start ... To: python-list@python.org Date: Sunday, November 24, 2013, 7:17 PM On 24/11/2013 17:12, Ruben van den Berg wrote: > I'm on Windows XP SP3, Python 2.7.1. On running > > import cx_Oracle > > I got the error > > ImportError: DLL load failed: This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem. > > I then ran Dependency Walker on cx_Oracle.pyd. Its first complaint was about msvcr80.dll. However, this file is present in C:\WINDOWS\WinSxS\x86_Microsoft.VC80.CRT_1fc8b3b9a1e18e3b_8.0.50727.91_x-ww_0de56c07. (I believe it's part of the MS Visual Studio C++ 2008 package which I installed.) > > I obviously uninstalled and reinstalled the cx_Oracle a couple of times but so far to no avail. > > Does anybody have a clue what to try next? > > For a screenshot of Dependency Walker, please see: > https://dl.dropboxusercontent.com/u/116120595/dep_walker_orac.jpg > It looks like it's a path issue. You say that msvcr80.dll is in C:\WINDOWS\WinSxS\x86_Microsoft.VC80.CRT_1fc8b3b9a1e18e3b_8.0.50727.91_x-ww_0de56c07, but is that folder listed as part of the search path? Have a look at the Windows' PATH environment variable. ===> Unlike in Linux with LD_LIBRARY_PATH, you can change PATH at runtime in Windows, e.g import os, sys, ctypes if sys.platform.startswith("win"): os.environ["PATH"] += (os.pathsep + r"c:\your\new\path") ctypes.WinDLL("msvcr80.dll") -- https://mail.python.org/mailman/listinfo/python-list