graphql-python / graphql-python/flask-graphql
Error when importing flask_graphql
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Descrição
Unable to import this library into my project. I always get an ImportError even if I create a new project with only one import.
**My code api.py**
```python
from http.client import HTTPException
from multiprocessing import AuthenticationError
import os
from flask import Flask, request, jsonify, abort
from sqlalchemy import exc
import json
from flask_cors import CORS
from graphene import ObjectType, String, Schema
from flask_graphql import GraphQLView
app = Flask(__name__)
```
**My requirements.txt**
In the beginning, I specify the version of each library, but there was an error. To solve the error, I removed the FLask-GraphQL because it is in conflict with other graphene dependency. As it said, _could not import flask_graphql_ I remove graphene version and specify the last version in the Flask-GraphQL so that my project use the last version of this library and solve the dependency conflict with graphene. But always the same error.
```python
Flask == 2.2.2
Flask-SQLAlchemy == 3.0.2
Jinja2 == 3.1.2
pylint == 2.15.9
Flask-Cors == 3.0.10
graphene #For graphql python support
Flask-GraphQL == 2.0.1
```
**Error message**
```python
Error: While importing 'src.api', an ImportError was raised:
Traceback (most recent call last):
File "/home/sticlab/Documents/NotebookProject/rasa-car-location-services/backend/venv/lib/python3.10/site-packages/flask/cli.py", line 218, in locate_app
__import__(module_name)
File "/home/sticlab/Documents/NotebookProject/rasa-car-location-services/backend/src/api.py", line 9, in
from flask_graphql import GraphQLView
File "/home/sticlab/Documents/NotebookProject/rasa-car-location-services/backend/venv/lib/python3.10/site-packages/flask_graphql/__init__.py", line 1, in
from .blueprint import GraphQL
File "/home/sticlab/Documents/NotebookProject/rasa-car-location-services/backend/venv/lib/python3.10/site-packages/flask_graphql/blueprint.py", line 5, in
from .graphqlview import GraphQLView
File "/home/sticlab/Documents/NotebookProject/rasa-car-location-services/backend/venv/lib/python3.10/site-packages/flask_graphql/graphqlview.py", line 7, in
from graphql_server import (HttpQueryError, default_format_error,
File "/home/sticlab/Documents/NotebookProject/rasa-car-location-services/backend/venv/lib/python3.10/site-packages/graphql_server/__init__.py", line 2, in
from collections import namedtuple, MutableMapping
ImportError: cannot import name 'MutableMapping' from 'collections' (/usr/lib/python3.10/collections/__init__.py)
```
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Direção de pesquisa
Comece reproduzindo o import com as versões de requirements.txt no Python 3.10. Inspecione os caminhos flask_graphql/__init__.py, blueprint.py, graphqlview.py e graphql_server/__init__.py mencionados no traceback; considera-se concluído quando o import reportado é bem-sucedido sem o erro de MutableMapping e o caminho relevante de teste ou de inicialização da aplicação passa.
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Avaliação
- Stack de tecnologia
- flask, graphql, python
- Domínio
- api, backend
- Tipo de issue
- Bug
- Dificuldade
- 4/5
- Tempo estimado
- 3-5 dias
- Status de atividade
- Estagnada
- Clareza
- Precisa de esclarecimento
- Facilidade para iniciantes
- 25/100