我正在开发一个模块,从我的 MySQL 数据库中获取有关图像序列的信息,然后使用 boto 库在 Lambda 上本地下载它们。之后,应该进行一些图像处理,但我还没有完成。
我一直遇到的错误很奇怪。在(我相信)下载第一张图片后,它说文件/目录不存在:
这是我目前为止编写的该模块的完整脚本:
```HTML
任何想法,为什么它不能保存图像文件?我正在使用Lambda控制台建议的默认S3角色。
我一直遇到的错误很奇怪。在(我相信)下载第一张图片后,它说文件/目录不存在:
Traceback (most recent call last): File "/var/task/module.py", line 41, in lambda_handler key.get_contents_to_filename(string)
File "/var/task/boto/s3/key.py", line 1714, in get_contents_to_filename os.remove(filename) OSError: [Errno 2] No such file or directory: '1.png'
我的代码中第41行位于这里:
# Download and Save all of the cropped images for this company
count = 1
files_list = []
for image in cropped_images:
key = bucket.get_key(image)
string = str(count) + '.png'
key.get_contents_to_filename(string)
files_list.append(string)
count += 1
print("should be done downloading all of the pictures from S3 ...")
这是我目前为止编写的该模块的完整脚本:
```HTML
在这里展示了我迄今为止编写的该模块的完整脚本:
```from __future__ import print_function
import json, os
import pymysql
import os, glob, subprocess, boto
from boto.s3.connection import S3Connection
conn = pymysql.connect(host='*******', port=3306, user='*****', passwd='******', db='*******')
cur = conn.cursor()
conn = S3Connection('***************','************************')
bucket = conn.get_bucket('**********')
def upload_file(company_friendly, filepath):
key = bucket.new_key(company_friendly + ".gif")
key.set_contents_from_filename(filepath)
key.set_acl('public-read')
return True
def lambda_handler(event, context):
### Grab Company Friendly from DB ###
cur.execute("SELECT ************ FROM *********** WHERE company_id = %i LIMIT 1" % (event['company_id']))
company_data = cur.fetchone()
company_friendly = company_data[0]
### Grab all snapshots from DB ###
cur.execute("SELECT *********** FROM ************ WHERE company_id = %i ORDER BY date ASC" % (event['company_id']))
snapshot_data = cur.fetchall()
cropped_images = []
for snapshot in snapshot_data:
cropped_images.append(snapshot[0])
### Download and Save all of the cropped images for this company ###
count = 1
files_list = []
for image in cropped_images:
key = bucket.get_key(image)
string = str(count) + '.png'
key.get_contents_to_filename(string)
files_list.append(string) #this makes sure that the animated gif compiles the images in order
count += 1
print("should be done downloading all of the pictures from S3 ...")
return(json.dumps({'status_code':200, 'msg':"company friendly name is " + company_friendly}, sort_keys=True))
任何想法,为什么它不能保存图像文件?我正在使用Lambda控制台建议的默认S3角色。