Internal server error after packaging with pyinstaller

[weirdyang]

Hi,
The app works when I run it locally. However once I convert it to an exe using pyinstaller, I get an internal server error. Any ideas on how or where I can start troubleshooting this? First time using pyinstaller. THanks!

[ELC]

Could you please give some more information? Operative System and the output of the console. Check first if it works with one directory mode and the one file and in case of error show us the console

[weirdyang]

Hi,
I'm using windows 10, python3.6.
The error I get is 'internal server error', I thought it might be because of bad file paths, but I've tried the solution provided in this https://stackoverflow.com/questions/7674790/bundling-data-files-with-pyinstaller-onefile, and it works locally but not in an executable.

I just tried using one directory mode and it works!

[ELC]

Internal server error is the one shown in the main window, can you show us the error in the console? The trace of the error.

[weirdyang]

Sorry do you mind teaching me how do I check the console for the executable?

…

On Thu, 8 Mar 2018, 20:44 Ezequiel Leonardo Castaño, < ***@***.***> wrote: Internal server error is the one shown in the main window, can you show us the error in the console? The trace of the error. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#9 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AYZCVoAtQ3hWmbtn2si8q-CAx2zsno6oks5tcSewgaJpZM4ShLNV> .

[ELC]

Just run pyinstaller without the w flag

[weirdyang]

Thanks! This is the traceback. I've added the templates folders using the add data command. [2018-03-09 01:52:37,889] ERROR in app: Exception on / [GET] Traceback (most recent call last): File "site-packages\flask\app.py", line 1982, in wsgi_app File "site-packages\flask\app.py", line 1614, in full_dispatch_request File "site-packages\flask\app.py", line 1517, in handle_user_exception File "site-packages\flask\_compat.py", line 33, in reraise File "site-packages\flask\app.py", line 1612, in full_dispatch_request File "site-packages\flask\app.py", line 1598, in dispatch_request File "app.py", line 25, in index File "site-packages\flask\templating.py", line 133, in render_template File "site-packages\jinja2\environment.py", line 869, in get_or_select_template File "site-packages\jinja2\environment.py", line 830, in get_template File "site-packages\jinja2\environment.py", line 804, in _load_template File "site-packages\jinja2\loaders.py", line 113, in load File "site-packages\flask\templating.py", line 57, in get_source File "site-packages\flask\templating.py", line 85, in _get_source_fast jinja2.exceptions.TemplateNotFound: index.html 127.0.0.1 - - [09/Mar/2018 01:52:37] "GET / HTTP/1.1" 500 -

…

On Thu, Mar 8, 2018 at 10:01 PM, Ezequiel Leonardo Castaño < ***@***.***> wrote: Just run pyinstaller without the w flag — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#9 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AYZCVlMb7MawrDJ9F4gPkM2rPht4NMP3ks5tcTm9gaJpZM4ShLNV> .

[ELC]

So either you don't use the --add-data param in the pyinstaller or you have a problem with your templates

[weirdyang]

I used the --add-data param as instructed in the readme.md, and the app works fine in one dir and when I run it from the terminal. My app.spec: # -*- mode: python -*- block_cipher = None a = Analysis(['app.py'], pathex=['C:\\Program Files (x86)\\Windows Kits\\10\\Redist\\ucrt\\DLLs\\x64', 'C:\\Users\\me\\Desktop\\pythonApp\\webdesk'], binaries=[], datas=[('templates', 'templates'), ('static', 'static')], hiddenimports=['ctypes'], hookspath=[], runtime_hooks=[], excludes=[], win_no_prefer_redirects=False, win_private_assemblies=False, cipher=block_cipher) pyz = PYZ(a.pure, a.zipped_data, cipher=block_cipher) exe = EXE(pyz, a.scripts, a.binaries, a.zipfiles, a.datas, name='app', debug=False, strip=False, upx=True, runtime_tmpdir=None, console=False )

…

On Fri, Mar 9, 2018 at 2:19 AM, Ezequiel Leonardo Castaño < ***@***.***> wrote: So either you don't use the --add-data param in the pyinstaller or you have a problem with your templates — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#9 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AYZCVhBNOSxWGq28VfAPkpH1Ezw7dRu-ks5tcXYXgaJpZM4ShLNV> .

[smoqadam]

take a look at this it might be helpfull

[weirdyang]

Thanks. I tried it, but still no luck. I think it's because pyinstaller does not set the env variable as mentioned in this link: https://stackoverflow.com/questions/7674790/bundling-data-files-with-pyinstaller-onefile
I'll report back if I figure this out. thanks again for your help.

edit; Fixed it!!

Include this at the top, under imports

if getattr(sys, 'frozen', False):
    template_folder =resource_path('templates')
    static_folder = resource_path('static')
    app = Flask(__name__, template_folder=template_folder, static_folder=static_folder)
else:
    app = Flask(__name__)

Define this in a helper script:

def resource_path(relative_path):
 """ Get absolute path to resource, works for dev and for PyInstaller """
    base_path = getattr(sys, '_MEIPASS', os.path.dirname(os.path.abspath(__file__)))
    return os.path.join(base_path, relative_path)   

credit to Jonathon Reinhart

additional notes:
if building on a windows 10 system use:

pyinstaller -w -F --add-data "templates;templates" --add-data "static;static" app.py --path 'C:\Program Files (x86)\Windows Kits\10\Redist\ucrt\DLLs\x64'

[ELC]

Thanks for the comments, I will close the issue since it's solved

[ELC]

Readme updated

[weirdyang]

btw this is the app I made with pyfladesk; https://github.com/captmomo/drowzee
thanks again for your help :)