尝试使用docker运行,结果失败了

[zeusro]

我的dockerfile是

FROM python:alpine
RUN export version=$(cat /etc/alpine-release) && \
    echo https://mirrors.ustc.edu.cn/alpine/v${version%.*}/main > /etc/apk/repositories && \
    echo https://mirrors.ustc.edu.cn/alpine/v${version%.*}/community >> /etc/apk/repositories;\
    echo "Asia/Shanghai" > /etc/timezone ;\
    apk add --virtual .build-deps gcc linux-headers libffi-dev musl-dev; \
    apk del libressl-dev &&\
    apk add openssl-dev && \
    pip install cryptography==2.7 && \
    apk del openssl-dev && \
    apk add libressl-dev && \
    pip install --no-cache-dir  python-dateutil requests[security]  docker -i https://mirrors.aliyun.com/pypi/simple/
ADD sync_images.py /sync_images.py
ENTRYPOINT ["python", "sync_images.py"]

运行结果是

ERROR: for sync  list indices must be integers, not unicode
Traceback (most recent call last):
  File "/usr/bin/docker-compose", line 11, in <module>
    load_entry_point('docker-compose==1.17.1', 'console_scripts', 'docker-compose')()
  File "/usr/lib/python2.7/dist-packages/compose/cli/main.py", line 68, in main
    command()
  File "/usr/lib/python2.7/dist-packages/compose/cli/main.py", line 121, in perform_command
    handler(command, command_options)
  File "/usr/lib/python2.7/dist-packages/compose/cli/main.py", line 952, in up
    start=not no_start
  File "/usr/lib/python2.7/dist-packages/compose/project.py", line 455, in up
    get_deps,
  File "/usr/lib/python2.7/dist-packages/compose/parallel.py", line 70, in parallel_execute
    raise error_to_reraise
TypeError: list indices must be integers, not unicode

对Python不是很熟,一样的代码在mac运行正常,在docker中出现问题,表示很困惑