擅长:python、mysql、java
<p>从代码中看,似乎没有调用close()函数,缺少()</p>
<pre><code>!/usr/bin/python
import boto3
newfile = open('localdestination','w')
newfile.write('ABCDEFG')
newfile.close() # < -
fnamebuck = 'bucketdestination'
client = boto3.client('s3')
inptstr = 'localdestination'
client.upload_file(inptstr, 'bucketname', fnamebuck)
</code></pre>