正如@WooParadog解释的那样，请求库不知道如何处理本地文件。虽然，当前版本允许定义传输适配器。
因此，您只需定义自己的适配器即可处理本地文件，例如：
from requests_testadapter import Resp
class LocalFileAdapter(requests.adapters.HTTPAdapter):
def build_response_from_file(self, request):
file_path = request.url[7:]
with open(file_path, 'rb') as file:
buff = bytearray(os.path.getsize(file_path))
file.readinto(buff)
resp = Resp(buff)
r = self.build_response(request, resp)
return r
def send(self, request, stream=False, timeout=None,
verify=True, cert=None, proxies=None):
return self.build_response_from_file(request)
requests_session = requests.session()
requests_session.mount('file://', LocalFileAdapter())
requests_session.get('file://<some_local_path>')
在上面的示例中，我使用了requests-testadapter模块。
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