runtime error

1, in import_from_string module = importlib.import_module(module_str) File "/usr/local/lib/python3.7/importlib/__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1006, in _gcd_import File "<frozen importlib._bootstrap>", line 983, in _find_and_load File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 677, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 728, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "./main.py", line 1, in <module> from fastapi import FastAPI, Form File "/usr/local/lib/python3.7/site-packages/fastapi/__init__.py", line 7, in <module> from .applications import FastAPI as FastAPI File "/usr/local/lib/python3.7/site-packages/fastapi/applications.py", line 15, in <module> from fastapi import routing File "/usr/local/lib/python3.7/site-packages/fastapi/routing.py", line 24, in <module> from fastapi.dependencies.models import Dependant File "/usr/local/lib/python3.7/site-packages/fastapi/dependencies/models.py", line 3, in <module> from fastapi.security.base import SecurityBase File "/usr/local/lib/python3.7/site-packages/fastapi/security/__init__.py", line 1, in <module> from .api_key import APIKeyCookie as APIKeyCookie File "/usr/local/lib/python3.7/site-packages/fastapi/security/api_key.py", line 3, in <module> from fastapi.openapi.models import APIKey, APIKeyIn File "/usr/local/lib/python3.7/site-packages/fastapi/openapi/models.py", line 8, in <module> import email_validator # type: ignore File "/usr/local/lib/python3.7/site-packages/email_validator/__init__.py", line 6, in <module> from .validate_email import validate_email File "/usr/local/lib/python3.7/site-packages/email_validator/validate_email.py", line 10 /, # prior arguments are positional-only ^ SyntaxError: invalid syntax

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