[Python][External library issue] Deepl library issue

Applications Others
#1

Hi all,

I’m trying to create an app using the recent deepl python library. I seem unable to use the library on Qt Creator altough it workds flawlessly on my computer’s terminal.

The python code is called by a QML file that worked with other python codes before. It’s using the io.thp.pyotherside 1.5 library.

Has any of you had the chance to try this library ?

I imported all necessary library files (deepl, requests, idna, urllib3, certifi and charset) into the project in Qt Creator.

When using the following code in my python file :

translator = deepl.Translator(my_key) result = translator.translate_text("hello world!", target_lang="DE") print(result)

I get the following errors :

Traceback (most recent call last): File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner self.run() File "/usr/lib/python3.8/threading.py", line 870, in run self._target(*self._args, **self._kwargs) File "/usr/share/pythonsample/qml/pages/datadownloader.py", line 52, in slow_function result = translator.translate_text("hello world!", target_lang="FR") File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 655, in translate_text request_data = self._check_language_and_formality( File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 572, in _check_language_and_formality self._check_valid_languages(source_lang, target_lang) File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 537, in _check_valid_languages target_lang == lang.code for lang in self.get_target_languages() File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 935, in get_target_languages self._target_languages_cached = self._request_languages( File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 499, in _request_languages status, content, json = self._api_call("v2/languages", data=data) File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 430, in _api_call status_code, content = self._client.request_with_backoff( File "/usr/share/pythonsample/qml/pages/deepl/http_client.py", line 93, in request_with_backoff raise exception File "/usr/share/pythonsample/qml/pages/deepl/http_client.py", line 79, in request_with_backoff response = self.request( File "/usr/share/pythonsample/qml/pages/deepl/http_client.py", line 150, in request raise ConnectionException(message, should_retry=should_retry) deepl.exceptions.ConnectionException: Unexpected connection error: __enter__

Feel free to ask for information I missed sharing !

Have a nice day !

#2

What version of the requests library do you use? deepl requires at least 2.18. The versions before did not allow to use a context manager for Response.

#3

According to the version.py file I’m using version 2.26.0

version = ‘2.26.0’
build = 0x022600

I’m wondering if it’s worth to create an issue on their github or if the issue could be on either my side or pytheotherside side’s

#4

It’s a bit difficult to debug this without code. If it was available, I’d try interactive debugging.

#5

Version 1.1.2 of deepl-python has been released with improved exception stacktraces. Maybe that helps in finding the cause of the problem.

#6

Thanks for the tip, I’ve just tried it and it’s the same error.

#7

I tried this very minimalist setup that gives the same AttributeError: __enter__ error as before the 1.1.2 version of deepl. With sailpy I generated the dependencies folder.

The main.qml file :

import QtQuick 2.0
import Sailfish.Silica 1.0
import io.thp.pyotherside 1.5
Page {
id: main
Label{
id: mainLabel
anchors.centerIn: parent
text: ‘’
}
Python {
id: python
Component.onCompleted: {
addImportPath(Qt.resolvedUrl(’…/pages’));
importModule(‘main’,function(){
call(‘main.hello_world’, [], function(message){
mainLabel.text = message;
}) }); }}}

The main.py file :

import pyotherside
import deepl
def hello_world():
translator = deepl.Translator(my_api_key)
result = translator.translate_text(“hello world!”, target_lang=“DE”)
pyotherside.send(result)

So in the end, even with the updated version of deepl, I’ve got the exact same error.

#8

The string “Unexpected connection error” has been replaced in deepl-python 1.1.2, so the error cannot be exactly the same. Do you mind posting your stack trace again?

#9

Sorry my mistake, the end line is the same.

[D] unknown:0 - "PyOtherSide error: Traceback (most recent call last):\n\n  File \"/usr/share/pythonsample/qml/pages/deepl/http_client.py\", line 134, in request\n    with self._session.request(\n\nAttributeError: __enter__\n\n\nThe above exception was the direct cause of the following exception:\n\n\nTraceback (most recent call last):\n\n  File \"/usr/share/pythonsample/qml/pages/main.py\", line 11, in hello_world\n    result = translator.translate_text(\"hello world!\", target_lang=\"FR\")\n\n  File \"/usr/share/pythonsample/qml/pages/deepl/translator.py\", line 655, in translate_text\n    request_data = self._check_language_and_formality(\n\n  File \"/usr/share/pythonsample/qml/pages/deepl/translator.py\", line 572, in _check_language_and_formality\n    self._check_valid_languages(source_lang, target_lang)\n\n  File \"/usr/share/pythonsample/qml/pages/deepl/translator.py\", line 537, in _check_valid_languages\n    target_lang == lang.code for lang in self.get_target_languages()\n\n  File \"/usr/share/pythonsample/qml/pages/deepl/translator.py\", line 935, in get_target_languages\n    self._target_languages_cached = self._request_languages(\n\n  File \"/usr/share/pythonsample/qml/pages/deepl/translator.py\", line 499, in _request_languages\n    status, content, json = self._api_call(\"v2/languages\", data=data)\n\n  File \"/usr/share/pythonsample/qml/pages/deepl/translator.py\", line 430, in _api_call\n    status_code, content = self._client.request_with_backoff(\n\n  File \"/usr/share/pythonsample/qml/pages/deepl/http_client.py\", line 93, in request_with_backoff\n    raise exception\n\n  File \"/usr/share/pythonsample/qml/pages/deepl/http_client.py\", line 79, in request_with_backoff\n    response = self.request(\n\n  File \"/usr/share/pythonsample/qml/pages/deepl/http_client.py\", line 151, in request\n    raise ConnectionException(message, should_retry=False) from e\n\ndeepl.exceptions.ConnectionException: Unexpected request failure: __enter__\n"
[W] unknown:0 - Unhandled PyOtherSide error: Return value of PyObject call is NULL: Traceback (most recent call last):

  File "/usr/share/pythonsample/qml/pages/deepl/http_client.py", line 134, in request
    with self._session.request(

AttributeError: __enter__


The above exception was the direct cause of the following exception:


Traceback (most recent call last):

  File "/usr/share/pythonsample/qml/pages/main.py", line 11, in hello_world
    result = translator.translate_text("hello world!", target_lang="FR")

  File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 655, in translate_text
    request_data = self._check_language_and_formality(

  File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 572, in _check_language_and_formality
    self._check_valid_languages(source_lang, target_lang)

  File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 537, in _check_valid_languages
    target_lang == lang.code for lang in self.get_target_languages()

  File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 935, in get_target_languages
    self._target_languages_cached = self._request_languages(

  File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 499, in _request_languages
    status, content, json = self._api_call("v2/languages", data=data)

  File "/usr/share/pythonsample/qml/pages/deepl/translator.py", line 430, in _api_call
    status_code, content = self._client.request_with_backoff(

  File "/usr/share/pythonsample/qml/pages/deepl/http_client.py", line 93, in request_with_backoff
    raise exception

  File "/usr/share/pythonsample/qml/pages/deepl/http_client.py", line 79, in request_with_backoff
    response = self.request(

  File "/usr/share/pythonsample/qml/pages/deepl/http_client.py", line 151, in request
    raise ConnectionException(message, should_retry=False) from e

deepl.exceptions.ConnectionException: Unexpected request failure: __enter__
#10

Still looks to me as there is some problem with the context manager usage. Could you try to embed the following Python script into your main.py file?

import requests

print(requests.__version__)

with requests.session() as session, session.request(method='GET', url='https://www.deepl.com') as request:
    request.raise_for_status()

If everything works as expected, it should print out the requests library’s version (2.25.1 in my case) and perform an HTTP GET request resulting in requests.exceptions.HTTPError: 403 Client Error: Forbidden for url: https://api.deepl.com/.

#11

Thank you for your help !

So this is what my main.py file looked like :

import pyotherside
import deepl
import requests
print(requests.version)
with requests.session() as session, session.request(method=‘GET’, url=‘https://www.deepl.com’) as request:
request.raise_for_status()
def hello_world():
translator = deepl.Translator(“my_api_key”)
result = translator.translate_text(“hello world!”, target_lang=“DE”)
pyotherside.send(result)

And this is the error output :

[D] unknown:0 - Using Wayland-EGL
[D] unknown:0 - Got library name:  "/usr/lib/qt5/qml/io/thp/pyotherside/libpyothersideplugin.so"
[D] unknown:0 - "PyOtherSide error: Traceback (most recent call last):\n\n  File \"/usr/share/pythonsample/qml/pages/main.py\", line 11, in <module>\n    with requests.session() as session, session.request(method='GET', url='https://www.deepl.com') as request:\n\nAttributeError: __enter__\n"
[W] unknown:0 - Unhandled PyOtherSide error: Cannot import module: main (Traceback (most recent call last):

  File "/usr/share/pythonsample/qml/pages/main.py", line 11, in <module>
    with requests.session() as session, session.request(method='GET', url='https://www.deepl.com') as request:

AttributeError: __enter__
)
[D] unknown:0 - "PyOtherSide error: Traceback (most recent call last):\n\n  File \"<string>\", line 1, in <module>\n\nNameError: name 'main' is not defined\n"
[W] unknown:0 - Unhandled PyOtherSide error: Function not found: 'main.hello_world' (Traceback (most recent call last):

  File "<string>", line 1, in <module>

NameError: name 'main' is not defined
)

I also tried by inserting your code in the def :

def hello_world():
print(requests.version)

with requests.session() as session, session.request(method='GET', url='https://www.deepl.com') as request:
    request.raise_for_status()
translator = deepl.Translator("my_api_key")
result = translator.translate_text("hello world!", target_lang="DE")
pyotherside.send(result)

Which resulted in : the same error

[D] unknown:0 - Using Wayland-EGL
[D] unknown:0 - Got library name: “/usr/lib/qt5/qml/io/thp/pyotherside/libpyothersideplugin.so”
[D] unknown:0 - “PyOtherSide error: Traceback (most recent call last):\n\n File “/usr/share/pythonsample/qml/pages/main.py”, line 13, in hello_world\n with requests.session() as session, session.request(method=‘GET’, url=‘https://www.deepl.com’) as request:\n\nAttributeError: enter\n”
[W] unknown:0 - Unhandled PyOtherSide error: Return value of PyObject call is NULL: Traceback (most recent call last):
File “/usr/share/pythonsample/qml/pages/main.py”, line 13, in hello_world
with requests.session() as session, session.request(method=‘GET’, url=‘https://www.deepl.com’) as request:
AttributeError: enter

So if my understanding is correct, the problem (for me) comes from the requests library ?

#12

Yes, it looks like the with session.request(… construct (context manager usage) is not supported by your requests version. That’s why I assumed in my first comment that you might be using a requests version from a time before that support was added. Unfortunately, I cannot see the result of print(requests.__version__) in the log. Could you try to make that visible somewhere? I have never used pyotherside, but looking at your code, maybe something like this could work:

import pyotherside
import requests

def hello_world():
    print(requests.__version__)
    pyotherside.send(requests.__version__)
#13

It prints :

[D] onReceived:120 - got message from python: 2.8.0

#14

Okay, that’s quite old (requests 2.8.0 released 2015-10-05). Is your script executed inside the Sailfish OS emulator? Is it possible to update the requests package somehow, e.g., by installing one from OpenRepos.net?

#15

Ok this was my mistake, it was using an old repository from a forked github example of python app for SFOS i was using, it is now using version “2.26.0”

#16

Ah, okay. 2.26.0 sounds great. Do you still see the problems with the example I provided or with deepl-python with that newer version?

#17

Yes it’s solved ! But the issue was somewhere else !

You see, in this repo the author packed all it’s libraries into one folder (so all requests required libraries inside the requests folder).

And I decided to do the same… So i had the deepl library, inside it, the requests one, and inside that one all of it’s dependencies.

I realized thanks to your last test that it wasn’t working. When I instead had all my libraries side by side (so in page folder there is the deepl, the requests, urllib3, idna, etc…) it worked just fine !

#18

Okay, great that you have found that and that’s working now. Maybe you should mark your post as solution for your problem then.

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