Installing libraries into FME's Python

Hi,

 

 

that depends entirely on how the osgeo installer works, as there are several installer types in use with different prerequisites. For a lot of use cases you can follow this:

 

 

http://fmepedia.safe.com/articles/How_To/Install-Python-modules-into-FME

 

 

For the cases where this isn't possible, I recommend that you download and install a free-standing version of Python (from https://www.python.org/) that matches the one delivered with FME (usually version 2.7). You then configure FME to use this Python interpreter (see: http://fmepedia.safe.com/articles/How_To/Choosing-a-different-Python-Interpreter-installation), where you finally install your 3rd party modules.

 

 

David

 

 

Hi David,

 

    Thanks for that. I didn't manage to find the first link during my searches. The downside to this method is - I don't seem to actually be able to find the Python osgeo package downloadable online. :-/ I guess it came with the OSGeo4W installer maybe. Hmmm.

 

    

 

    ----

 

    

 

    I've tried the second method, with a confirmed working install of Python 2.7 (already installed) that has the package installed within it.

 

    Problem is, FME fails to run when using this method:

 

    

 

    2015-01-14 17:02:15|   1.5|  0.0|ERROR |The User-specified library C:\\Python27\\python27.dll could not be loaded

 

2015-01-14 17:02:15|   1.5|  0.0|INFORM|Using user-specified Python interpreter from C:\\Python27\\python27.dll

 

2015-01-14 17:02:15|   1.5|  0.0|FATAL |A Python installation could not be detected. PythonFactory could not initialize

 

 

---

 

Finally, from (http://fmepedia.safe.com/articles/How_To/Python-on-FME-Server#heading_toc_j_1 (I figured I'd give it a try on Desktop)) I've also tried to copy and paste the module directory from the 2.7 install into the FME Python directory. but this just gives me a different error again:

 

2015-01-14 17:06:19|   2.8|  0.1|ERROR |Python Exception <ImportError>: DLL load failed: %1 is not a valid Win32 application.

 

 

So all in all, I'm afraid I remain very confused. :-(

 

Any thoughts on any of these?

 

Thanks,

 

Jonathan

Hi,

 

 

could it be that your installation of Python 2.7 in C:\\Python27 is a 64-bit version? You will need a 32-bit version of Python for 32-bit FME.

 

 

David

Hi David,

 

Good thought. I don't know the python version, so tested against both FME versions:

 

 

FME 32bit error:

 

2015-01-14 17:25:20|   1.6|  0.0|ERROR |The User-specified library C:\\Python27\\python27.dll could not be loaded

 

2015-01-14 17:25:20|   1.6|  0.0|INFORM|Using user-specified Python interpreter from C:\\Python27\\python27.dll

 

2015-01-14 17:25:20|   1.6|  0.0|FATAL |A Python installation could not be detected. PythonFactory could not initialize

 

 

 

=============

 

 

FME 64bit result:

 

2015-01-14 17:26:29|   1.5|  0.0|INFORM|Using user-specified Python interpreter from C:\\Python27\\python27.dll

 

2015-01-14 17:26:29|   1.5|  0.0|INFORM|Python version 2.7 successfully loaded

 

2015-01-14 17:26:29|   1.6|  0.1|WARN  |Warning: not all FMESessions that were created were destroyed before shutdown.  This may cause instability

 

ImportError: No module named site

 

 

and then the translation ends with nothing else in the log!

 

 

So it may be 64bit, but I'm just getting a different error! :-(

 

Thoughts still welcome! :-)

 

Thanks,

 

Jonathan

Hi,

 

 

you should check the version by double-clicking on python.exe and see what it says:

 

 

 

 

David

Yup, 64bit:

 

 

Enthought Python Distribution -- www.enthought.com

 

Version: 7.2-1 (64-bit)

 

 

Python 2.7.2 |EPD 7.2-1 (64-bit)| (default, Sep 14 2011, 11:25:00) [MSC v.1500 6

 

4 bit (AMD64)] on win32

 

Type "packages", "demo" or "enthought" for more information.

There you have the explanation.

 

 

32-bit FME needs 32-bit Python.

 

 

David

Alas no. Remember that 64bit FME with 64bit python was giving me this; which is arguably even worse because it's failing without saying it's failing.

 

 

  FME 64bit result:

 

2015-01-14 17:26:29|   1.5|  0.0|INFORM|Using user-specified Python interpreter from C:\\Python27\\python27.dll

 

2015-01-14 17:26:29|   1.5|  0.0|INFORM|Python version 2.7 successfully loaded

 

2015-01-14 17:26:29|   1.6|  0.1|WARN  |Warning: not all FMESessions that were created were destroyed before shutdown.  This may cause instability

 

ImportError: No module named site

 

 

and then the translation ends with nothing else in the log!

Hi David,

 

Thanks for the information.

 

After further testing:

 

- Issue happens with both 32bit and 64bit.

 

- Anaconda Python gets the exact same error as Enthought.

 

- The "site" module is loaded and works fine when I use python.exe in my install and then "import site".

 

 

I did manage to find an OSGEO package, but the method from the link - http://fmepedia.safe.com/articles/How_To/Install-Python-modules-into-FME - doesn't work because it seems end up trying to compile the OSGEO thing.

 

 

So, I'm afraid I seem to be no closer to finding the solution to this issue than I was when I started this.

 

Any thoughts welcome!

 

Thanks,

Jonathan

Hi,

 

 

you probably need to find a pre-compiled version of osgeo.

 

 

If it's GDAL you need, have a look here for a starting point: https://pypi.python.org/pypi/GDAL/

 

 

David