api_key='x'
secret_key='x'
httpClient=requests.Session()
recv_window=str(5000)

def genSignature(timestamp, payload):
    param_str= f"{timestamp}{api_key}{recv_window}".encode() + payload
    hash = hmac.new(bytes(secret_key, "utf-8"), param_str, hashlib.sha256)
    signature = hash.hexdigest()
    return signature


image_path = r"D:\1111.png"
url = "https://api.bybit.com/v5/p2p/oss/upload_file"

# params
boundary = "boundary-file"
filename = "test.png"
mimeType = "image/png"

with open(image_path, "rb") as f:
    binary_data = f.read()

files = MultipartEncoder(
    {
        'upload_file': (
            filename,
            open(image_path, "rb"),
            mimeType
        )
    },
    boundary=boundary
)

payload = (
    f"--{boundary}\r\n"
    f"Content-Disposition: form-data; name=\"upload_file\"; filename=\"{filename}\"\r\nContent-Type: {mimeType}\r\n\r\n"
).encode() + binary_data + f"\r\n--{boundary}--\r\n".encode()

timestamp = str(int(time.time() * 10 ** 3))
signature = genSignature(timestamp, payload)
headers = {
    'X-BAPI-API-KEY': api_key,
    'X-BAPI-SIGN': signature,
    'X-BAPI-SIGN-TYPE': '2',
    'X-BAPI-TIMESTAMP': timestamp,
    'X-BAPI-RECV-WINDOW': recv_window,
    "Content-Type": "multipart/form-data; boundary=" + boundary
}

response = httpClient.request("POST", url, headers=headers, data=files.to_string())

print(response.status_code)
print(response.text)