如何在Python 3上上传文件到Google云存储?

fivyi3re  于 2023-01-27  发布在  Python
关注(0)|答案(5)|浏览(141)

如何从Python 3上传一个文件到Google Cloud Storage?如果在Python 3中不可行,最终使用Python 2。
我已经找了又找,但是还没有找到一个真正有效的解决方案。我尝试了boto,但是当我试图通过gsutil config -e生成必要的.boto文件时,它一直说我需要通过gcloud auth login配置身份验证。然而,我已经做了很多次后者,它没有帮助。

rqcrx0a6

rqcrx0a61#

使用标准的gcloud库,它同时支持Python 2和Python 3。

上传文件到云存储示例

from gcloud import storage
from oauth2client.service_account import ServiceAccountCredentials
import os

credentials_dict = {
    'type': 'service_account',
    'client_id': os.environ['BACKUP_CLIENT_ID'],
    'client_email': os.environ['BACKUP_CLIENT_EMAIL'],
    'private_key_id': os.environ['BACKUP_PRIVATE_KEY_ID'],
    'private_key': os.environ['BACKUP_PRIVATE_KEY'],
}
credentials = ServiceAccountCredentials.from_json_keyfile_dict(
    credentials_dict
)
client = storage.Client(credentials=credentials, project='myproject')
bucket = client.get_bucket('mybucket')
blob = bucket.blob('myfile')
blob.upload_from_filename('myfile')
8cdiaqws

8cdiaqws2#

一个将文件上传到gcloud bucket的简单函数。

from google.cloud import storage
#pip install --upgrade google-cloud-storage. 
def upload_to_bucket(blob_name, path_to_file, bucket_name):
    """ Upload data to a bucket"""
     
    # Explicitly use service account credentials by specifying the private key
    # file.
    storage_client = storage.Client.from_service_account_json(
        'creds.json')

    #print(buckets = list(storage_client.list_buckets())

    bucket = storage_client.get_bucket(bucket_name)
    blob = bucket.blob(blob_name)
    blob.upload_from_filename(path_to_file)
    
    #returns a public url
    return blob.public_url

您可以使用此链接生成凭据文件:https://cloud.google.com/storage/docs/reference/libraries?authuser=1#client-libraries-install-python
异步示例:

import asyncio
import aiohttp
# pip install aiofile
from aiofile import AIOFile
# pip install gcloud-aio-storage
from gcloud.aio.storage import Storage 

BUCKET_NAME = '<bucket_name>'
FILE_NAME  = 'requirements.txt'
async def async_upload_to_bucket(blob_name, file_obj, folder='uploads'):
    """ Upload csv files to bucket. """
    async with aiohttp.ClientSession() as session:
        storage = Storage(service_file='./creds.json', session=session) 
        status = await storage.upload(BUCKET_NAME, f'{folder}/{blob_name}', file_obj)
        #info of the uploaded file
        # print(status)
        return status['selfLink']
        

async def main():
    async with AIOFile(FILE_NAME, mode='r') as afp:
        f = await afp.read()
        url = await async_upload_to_bucket(FILE_NAME, f)
        print(url)

# Python 3.6
loop = asyncio.get_event_loop()
loop.run_until_complete(main())

# Python 3.7+
# asyncio.run(main())
ijnw1ujt

ijnw1ujt3#

导入Google Cloud客户端库(需要凭据)

from google.cloud import storage
import os
os.environ["GOOGLE_APPLICATION_CREDENTIALS"]="C:/Users/siva/Downloads/My First Project-e2d95d910f92.json"

示例化客户端

storage_client = storage.Client()

buckets = list(storage_client.list_buckets())

bucket = storage_client.get_bucket("ad_documents") # your bucket name

blob = bucket.blob('chosen-path-to-object/{name-of-object}')
blob.upload_from_filename('D:/Download/02-06-53.pdf')
print(buckets)
3wabscal

3wabscal4#

安装Google云存储API时:
pip install google-cloud
将抛出一个ModuleNotFoundError

from google.cloud import storage
ModuleNotFoundError: No module named 'google'

确保按照Cloud Storage Client Libraries Docs

pip install --upgrade google-cloud-storage

von4xj4u

von4xj4u5#

这个正式的repo包含了一些代码片段,演示了将文件上传到bucket的不同方法:https://github.com/googleapis/python-storage/tree/05e07f248fc010d7a1b24109025e9230cb2a7259/samples/snippets

  • upload_from_string()
  • upload_from_file()
  • upload_from_filename()

相关问题