ModuleNotFoundError: No module named 'graphql'

The Python virtual environment use created with virtualenv ,python version is

#python --version
Python 3.7.3

When I execute the following commands：

#py.test graphene/relay/ 

The following error occurred：

Hint: make sure your test modules/packages have valid Python names.
Traceback:
graphene/__init__.py:3: in <module>
    from .types import (
graphene/types/__init__.py:2: in <module>
    from graphql import GraphQLResolveInfo as ResolveInfo
E   ModuleNotFoundError: No module named 'graphql'

But when I execute the following commands install graphql extension，have following error：

# pip install graphql

Complete output (10 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.macosx-10.7-x86_64-3.7
  creating build/lib.macosx-10.7-x86_64-3.7/graphql
  copying graphql/__init__.py -> build/lib.macosx-10.7-x86_64-3.7/graphql
  running build_ext
  building 'graphql_ext' extension
  error: unknown file type '.pyx' (from 'graphql/graphql_ext.pyx')
  ----------------------------------------
  ERROR: Failed building wheel for graphql

I wonder if you have encountered this problem.

[MauroNavaLuevanos]

I got the same problem, i had a graphql named folder in the root

Fixed with

[nandinichaurasiya]

I got the same error: error: unknown file type ‘.pyx’ (from ‘graphql/graphql_ext.pyx’)

These commands worked for me to get rid from graphql errors. pip install pip --upgrade pip install setuptools --upgrade pip install gql[all]