I just figured out the solution. I think PyInstaller was finding some of
the DLLs, but not all of them. They likely depended on each other using
relative paths, so they worked when I manually included all of them. When I
didn't, however, the ones that were included tried to find the others via a
relative path, rather than using the PATH environment variable.
Whether or not that was the problem, removing all DLLs (except
python36.dll) from the binaries attribute of the Analysis object in the
spec file worked. Here's the code that got it to work, located immediately
after creating an instance of Analysis and assigning it to `a`.
a.binaries = [b for b in a.binaries if b[0].endswith('python36.dll') or not
b[0].endswith('.dll')]
On Thursday, June 13, 2019 at 2:53:04 AM UTC-4, Eric Fahlgren wrote:
>
> Sorry, out of ideas. Maybe the PyInstaller dll loader is ignoring the
> modifications to PATH, but then why is it working for me?
>
> On Wed, Jun 12, 2019 at 7:27 AM Ben Green <ben....@geckorobotics.com
> <javascript:>> wrote:
>
>> Eric,
>>
>> I was setting the path in the main script right before I imported the
>> SWIG module. At your suggestion, I tried using a runtime_hook to point to a
>> boot file, and I set os.environ["PATH"] in the boot file. I still have the
>> same issue.
>>
>> On Sunday, June 9, 2019 at 9:21:15 AM UTC-4, Eric Fahlgren wrote:
>>>
>>> Ben, I think we're doing exactly that in our code. Exactly when are you
>>> setting PATH? Do you use the runtime_hooks in your .spec file to point to
>>> a boot file, so it happens as part of initialization of the product exe?
>>>
>>> XXX.spec contains (among all the other stuff):
>>> analyzed = Analysis(
>>> scripts = [path.join(XXX_ROOT, 'XXX/main.py')],
>>> runtime_hooks = [path.join(XXX_ROOT,
>>> 'install/XXX_boot.py')],
>>> ...
>>>
>>> Then in install/XXX_boot.py we have (obviously Windows-specific):
>>>
>>> os.environ['OUR_PRODUCT_INSTALL_DIR'] = 'something'
>>> os.environ['PATH'] = r'%OUR_PRODUCT_INSTALL_DIR_VAR%\bin;' +
>>> os.environ['PATH']
>>>
>>> On Fri, Jun 7, 2019 at 12:04 AM Ben Green <ben....@geckorobotics.com>
>>> wrote:
>>>
>>>> The problem:
>>>> I have a small program that imports a SWIG module, which imports some
>>>> DLLs. I need to create an executable for this program that can reference
>>>> these external DLLs as external DLLs, not by bundling them in the
>>>> executable.
>>>>
>>>> From what I've read, this doesn't seem to be possible. I've tried a few
>>>> different solutions from forums and such that changed the DLL path or
>>>> something, and I've tried changing sys.path and os.environ["PATH"], but
>>>> none of these seem to help the SWIG module find the external DLLs. I can
>>>> get the program to run just fine if I include the DLLs in the executable,
>>>> but that isn't the desired behavior.
>>>>
>>>> Does anyone know if there's a way to get PyInstaller to do this?
>>>>
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