Google App Engine Python 3.7 build error: `pip_download_wheels` returned code: 1
问题 I am using Django REST Framework to deploy on Google App Engine and my requirements.txt file is as follows: asn1crypto==0.24.0 astroid==2.1.0 boto3==1.9.55 botocore==1.12.55 certifi==2018.8.13 cffi==1.11.5 chardet==3.0.4 colorama==0.4.1 coreapi==2.3.3 coreschema==0.0.4 cryptography==2.4.2 defusedxml==0.5.0 Django==2.1 django-allauth==0.36.0 django-filter==2.0.0 django-rest-auth==0.9.3 django-rest-swagger==2.0.7 djangorestframework==3.8.2 djangorestframework-jwt==1.11.0 docutils==0.14 idna==2