Python云引擎代码部署失败

Python版本无变化, 依赖无变化, 逻辑代码变动小于三行

[REMOTE] [ERROR] 部署失败：The command '/bin/sh -c pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple2' returned a non-zero code: 1:
Requirement already satisfied: gevent<2.0.0,>=1.0.2 in /usr/local/lib/python2.7/dist-packages (from -r requirements.txt (line 1))
Requirement already satisfied: gevent-websocket<1.0.0,>=0.9.5 in /usr/local/lib/python2.7/dist-packages (from -r requirements.txt (line 2))
Collecting leancloud-sdk<=2.0.0,>=1.0.9 (from -r requirements.txt (line 3))
Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError(': Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/leancloud-sdk/
Retrying (Retry(total=3, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError(': Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/leancloud-sdk/
Retrying (Retry(total=2, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError(': Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/leancloud-sdk/
Retrying (Retry(total=1, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError(': Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/leancloud-sdk/
Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError(': Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/leancloud-sdk/
Could not find a version that satisfies the requirement leancloud-sdk<=2.0.0,>=1.0.9 (from -r requirements.txt (line 3)) (from versions: )
No matching distribution found for leancloud-sdk<=2.0.0,>=1.0.9 (from -r requirements.txt (line 3))
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#snimissingwarning.
SNIMissingWarning
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#insecureplatformwarning.
InsecurePlatformWarning