import requests

url = "https://testmanagement.qmetry.com/rest/attachments"

headers = {
    'apikey': "apikey",
    'project': "projectid",
}

file_list = [  
       ('file[]', ('Admin.jpg', open('/Users/punit.samtani/Downloads/Admin.jpg', 'rb'), 'image/png')),
       ('file[]', ('Roles.jpg', open('/Users/punit.samtani/Downloads/Roles.jpg', 'rb'), 'image/png'))
]

response = requests.request("POST", url, files=file_list, headers=headers)

print(response.text)