如何使用python将本地CSV上传到Google大查询 [英] How to upload a local CSV to google big query using python

问题描述

我正在尝试使用python将本地CSV上传到Google大查询

I'm trying to upload a local CSV to google big query using python

def uploadCsvToGbq(self,table_name):


    load_config = {
    'destinationTable': {
    'projectId': self.project_id,
    'datasetId': self.dataset_id,
    'tableId': table_name
    }
    }

    load_config['schema'] = {
    'fields': [
    {'name':'full_name', 'type':'STRING'},
    {'name':'age', 'type':'INTEGER'},
    ]
    }
    load_config['sourceFormat'] = 'CSV'

    upload = MediaFileUpload('sample.csv',
                     mimetype='application/octet-stream',
                     # This enables resumable uploads.
                     resumable=True)
    start = time.time()
    job_id = 'job_%d' % start
    # Create the job.
    result = bigquery.jobs.insert(
    projectId=self.project_id,
    body={
    'jobReference': {
    'jobId': job_id
    },
    'configuration': {
    'load': load_config
    }
    },
    media_body=upload).execute()

    return result

当我运行此命令时，它会引发类似

when I run this it throws error like

"NameError:未定义全局名称'MediaFileUpload'"

"NameError: global name 'MediaFileUpload' is not defined"

是否需要任何模块，请帮助.

whether any module is needed please help.

推荐答案

pip install --upgrade google-api-python-client

然后在您的python文件顶部写入:

Then on top of your python file write:

from googleapiclient.http import MediaFileUpload

但是请注意，您会错过一些括号.更好地写:

But care you miss some parenthesis. Better write:

result = bigquery.jobs().insert(projectId=PROJECT_ID, body={'jobReference': {'jobId': job_id},'configuration': {'load': load_config}}, media_body=upload).execute(num_retries=5)

顺便说一句，您将上载所有CSV行，包括定义列的第一行.

And by the way, you are going to upload all your CSV rows, including the top one that defines columns.

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